1. Kho d liu v H h tr quyt nh Nguyn Thanh Bnh

2. cng

Phn 1: Tng quan

Chng 1: Gii thiu

Chng 2: i cng

Chng 3: Kin trc kho d liu

3. cng (tt)

Phn 2: M hnh ha

Chng 4: D liu v cc m hnh

Chng 5: M hnh ha

Chng 6: Siu D liu

Chng 7: Phng thc kho d liu

Chng 8: Tng lai v tng kt mn hc

4. Chng1:Gii thiu 5. Vn :Cc ngun thng tin a tp

Cch mng thng tinvas bng n thng tin

Nhiu h thng thng tin c xy dng:

• Nhng giao din khc nhau

• Nhng dng biu d liu khc nhau

• Thng tin trng lp v khng nht qun

6. Vn : Qun l d liutrong nhng x nghip ln

S phn mnh theo chiu dc trong cc h thng thng tin

• Thnh nhiu h thng tc nghip v h thng x l ton tc trc tuyn (OLTP) a tp

7. Mc tiu:Truy cp d liu mt cch thng nht

Thu thp v kt hp thng tin

Cung cp mt khung nhn tch hp, giao din ngi s dngkhng bin i

H tr kh nng chia s

8. Kho d liu

D liu c tch hp v t chc cho cc mc ch:

• Lm cho h thng tr nn d hiu

• R rng

• D phn tch

D liu c thu thp t nhiu ngun

• Lm sch

• Tch hp

• Chuyn dch

• Tng hp

9. H h tr quyt nh

c bit n nh l mt phn ca kho d liu

Cung cp cc bo co, phn tch tin tnh ton, cc th, biu

Cho php phn tch trc tuyn d liu

Thm d s tng tc d liu

Cung cp cc giao din a dng cho ngi dng

Cung cp kh nng phn tch d liu phc tp bng phng thc n gin

10. Yu cu ca h h tr quyt nh

Khung nhn d liu a chiu

H tr phn cp d liu, v kh nng i su vo chi tit

Tr li nhanh cc cu hi

11. Lch s pht trin

Khi u vo nhng nm 1990s

Thng 2 nm 1996, theo bo co ca nhm META:

• 13 000 triu USD (phn cng: 8000, service:5000)

1998: 14 600 triu USD

2001: >20 000 tr USD

12. Lch s pht trin 1996 2001 0 5 10 15 20 25 1996 2001 Revenue Projected Growth USA Europe APAC Other 0 10 20 30 40 50 60 USA Europe APAC Other Installed Base Current Revenue 13. Ti sao nghin cu kho d liu

Kho lu tr d liu, thng tin, tri thc, v siu d liu

• Tng hp ton b thng tin phc v cho phn tch su

• Tch vic phn tch ra khi x l ton tc trc tuyn

Chuyn i d liu thnh thng tin

• Cung cp thng tin chnh xc ng thi im v ng nh dng

14. Ti sao nghin cu kho d liu

Thi hnh cc phn tch d Iiu phc tp

Thc hin phn tch:

• • Phn tch nh hng

• • Phn tch chui thi gian

• • Phn tch ri ro

• Thm d cc h h tr quyt nh

• Khm ph v a ra cc yu t n thng qua cc k thut khai ph d liu

15. Cc c im ca kho d liu

Thit k cho cc cng vic phn tch

Thit k cho mt nhm nh ngi dng (decision makers)

Ch c

Cp nhp theo giai on: ch thm d liu

D liu lch s theo chiu thi gian

Cc cu hi tr v cc tp kt qu ln, a kt ni.

Ton cc

16. Cc v d

X l ton tc trc tuyn OLTP

• S lng coca cola c va c bn

X l phn tch trc tuyn OLAP

• S lng coca cola c bn thng trc ti cc ca hng pha bc tnh Tha thin Hu

• Ca hng no pha bc tnh Tha thin Hu c s lng coca cola c bn ra thng trc ln nht

• Thng no trong nm s lng coca cola c bn ra nhiu nht ti tnh Tha thin Hu

17. Cc ng dng ca KDL

• Hng khng Airline

• Ngn hng Banking

• Chm sc sc khe Health care

• u t Investment

• Bo him Insurance

• Bn l Retail

• Vin thng

• Cc ngnh cng nghip Manufacturers

• Credit card suppliers

• Clothing distributors

0 10 20 30 40 Financial Retail Telecom Manufacturing Other Percentage Market Coverage 18. Kho d liu-Cc nh ngha

W.H. Inmon

• Hng ch th subject-oriented.

• Tch hp integrated,

• Bin thi gian time-variant,

• Bn vng non-volatile

• Su tp d liu phc v cho cc thao tc h tr quyt nh (collection of data in support of management's decision-making process)

19. Kho d liu-Cc nh ngha

Hng ch th subject-oriented.

• Chuyn t hng ng dng sang hng h tr quyt nh

Tch hp integrated,

Bin thi gian time-variant,

• so snh d liu theo chiu thi gian

B vng non-volatile, ch c thm vo v khng thay th

20. Kho d liu-Cc nh ngha Subject Oriented Integrated Time Variant Non Volatile Data Warehouse 21. Hung ch th

c t chc xung quanh cc ch th chnh, nh khch hng (customer), sn phm (product), bn hng (sales).

Tp trung vo vic m hnh ha v phn tch d liu cho cc nh a ra quyt nh, m khng tp trung vo cc hot ng hay cc x l ton tc hng ngy.

Cung cp mt khung nhn n gin v sc tch xung quanh cc s kin ca cc ch th

22. Subject Oriented

Data is categorized and storedby business subject rather than

by application.

Operational Systems Savings Shares Loans Insurance Equity Plans Customer Product, SalesInformation Data WarehouseSubject Area 23. Subject Areas

Cc ch th in hnh.

• Cc ti khon khch hng

• Vic bn hng

• Tin tit kim ca khch hng

• Cc yu sch bo him

• t ch hnh khch

24. Integrated

c xy dng bng vic tch hp d liu t cc ngun d liu hn tp, a b

• C s d liu quan h (relational databases), flat files, cc bng ghi ton tc trc tuyn.

Cc k thut lm sch v tch hp d liu c p dng

• m bo s ng nht trong cc quy c tn, cu trc m ha, cc n v o thuc tnh, gia cc ngun khc nhau

• • V d nh: Hotel price: currency, tax, breakfast covered, ...

• Khi d liu c chuyn n kho d liu, n s c chuyn i.

25. Integrated Data Warehouse Operational Environment Subject = Customer Savings Application CurrentAccounts Application Loans Application No Application Flavor 26. Integrated Data

D liu c tng hp t cc ngun khc nhau

L mt tp hp thng tin chnh xc, cht lng v nht qun

Chun ha

• Cc qui c tn

• Cc thuc tnh

• Cc n v o lng

Qu trnh lm sch v tch hp

27. Time Variant

Data is stored as a series of snapshots, each representing a

period of time.

Data Time 01/97 02/97 03/97 Data for January Data for February Data for March DataWarehouse 28. Time Variant

Yu cu quan trong cho kho d liu l phm vi v thi gian di hn so vi cc h thng tc nghip.

• C s d liu tc nghip: d liu c gi tr hin thi

• D liu ca kho d liu: cung cp thng tin lch s (v d nh, 5-10 nm trc)

Yu t thi gian c lu tr trong CSDL

Data Time 01/97 02/97 03/97 Data for January Data for February Data for March 29. Non Volatile

Typically data in the data warehouse is not updated or deleted .

Read Load INSERTRead UPDATE DELETE Operational Databases Warehouse Database 30. Non Volatile Operational Databases Warehouse Database First time load Refresh Refresh Refresh Purge or Archive 31. Non-Volatile

L mt lu tr vt l ca d liu c chuyn i t mi trng tc nghip.

Cp nht tc nghip ca d liu khng xut hin trong mi trng kho d liu.

• Khng yu cu cc c ch x l ton tc, phc hi v iu khin tng tranh.

• Ch yu cu hai thao tc trong truy cp d liu:

• • Np d liu v truy cp d liu.

32. Kho d liu-Cc nh ngha (tt)

Pandora, Swinburn University

• L mt phng thc cho vic kt ni d liu t nhiu h thng khc nhau.

• L mt im truy cp tp trung d liu camt t chc

• c trnh by mt khung dng thch hp

• L h thng ch c

• Cho php thit lp cc bo co tng hp gia cc ng dng

33. Kho d liu-Cc nh ngha (tt)

Paul Lucas, IBM:

• L mt ni lu tr d liu y v nht qun consistent.

• c tng hp v t nhiu ngun

• c lm sn cho ngi s dng cui

• D hiu

34. Kho d liu v cc CSDL

Vic tch hp csdl hn tp truyn thng:

• Xy dng cc wrappers/mediators trn cc csdl hn tp.

• X l cu hi:

• • Khi mt cu hi c t ra ti mt my khch, mt siu t in s c s dng dch cu truy vn thnh cc cu truy vn tng ng cho cc csdl ring bit, v kt qu c tch hp trong mt tp kt qu ton cc.

• • y s c cc b lc phc tp.

Kho d liu: nng cao tc thc hin

• Thng tin t cc ngun a tp c tch hp trc v lu tr trong kho d liu cho vic tr li trc tip cc cu hi v cc tc v phn tch

35. 36. Kho d liu v cc CSDL

X l ton tc trc tuyn OLTP (on-line transaction processing)

• Tc v chnh ca cc h qtcsdl quan h truyn thng.

• Cc thao tc hng ngy: mua, kim k, k ton,

X l phn tch trc tuyn OLAP (on-line analytical processing)

• L tc v chnh ca h thng kho d liu

• Phn tch d liu v a ra quyt nh

Cc c tim khc nhau (OLTP vs. OLAP):

• Theo quan im ngi dng: khch hng so vi th trng

• Cc ni dung d liu: Hin ti, chi titso vi lch s v tm lc.

• Thit k csdl: ER + ng dng so vi hnh sao v hng ch th

• Khung nhn: hin ti, cc b so vi lch s v tch hp

• Cc mu truy cp: cp nht so vi cc truy vn ch c nhng phc hp

37. OLTP vs. OLAP 38. Cc kin thc, mn hc lin quan

CSDL

X l song song

Thit k giao din

Cng ngh phn mm

Khai ph d liu

Bo mt

Cng ngh mng, intranet, internet

Cng ngh x l kinh doanh

Marketing, k ton, v qun l

39. Tm tt chng

Kho d liu v h h tr quyt nh

Lch s pht trin

Ti sao nghin cu kho d liu

Cc t im ca KDL

Cc v d

ng dng ca KDL

Cc nh ngha

Cc mn hc lin quan

40. Cu hicho chng 1??? Uff... 41. Chng2:i cng 42. Cc thnh phn ETT Data Management Data Access and Analysis Design and Modeling Methodology 43. Methodology-Phng php lun

m bo s thnh cng ca KDL

Thc y vicphttrin

Cung cp mt hng n nh cho KDL ln

• An ton

• Qun l c

• Kim chng c

• ntng tt

44. Modeling-M hnh ha

Cc im khc ca KDL so vi cc h thng OLTP

• Thit k cc thnh phn phc v cc yu cu phn tch

• nh hng ch th

D liu c nh x vo thng tin hng ch th:

• Nhn dng cc ch th kinh doanh

• nh ngha quan h gia cc ch th

M hnh ha l mt qu trnh lp

45. ETT

Extraction: chn la d liu bng nhiu phng thc

Transformation: xc nhn hp l, lm sch, tch hp, v d liu nhn thi gian

Transportation: chuyn i d liu vo KDL

OLTP Databases Staging File Warehouse Database 46. Data Management

Cc cng c phc v cho vic qun l d liu mt cch hiu qu

Cc yu cu

• Mm do

• T ng

• Hiu qu

Qun l phn cng, h iu hnh v mng

47. Truy cp d liu v to bo co

Cc cng c dng truy tm d liu cho vic phn tch kinh doanh

Cc yu cu

• D dng

• Trc quan

• Siu d liu

• D hun luyn

WarehouseDatabase Simple Queries Forecasting Drill-down 48. Cc t kha quan trng

DWH: (Data Warehouse) Kho d liu

EIS:(Executive Information System) H thng thng tin iu hnh

OLTP: (Online Transaction Processing): X l ton tc trc tuyn

OLAP: (Online Analytical Processing) X l phn tch trc tuyn

MOLAP: (Multi dimensional Online Analytical Processing) X l phn tch trc tuyn a chiu

49. Cc t kha quan trng

ROLAP: (Relational Online Analytical Processing) X l phn tch trc tuyn quan h

HOLAP: (Hybric Online Analytical Processing) X l phn tch trc tuyn kt hp

DOLAP: (Database Online Analytical Processing) X l phn tch trc tuyn CSDL

Client/server OLAP: (client/server Online Analytical Processing) X l phn tch trc tuyn khch ch

50. Cc t kha quan trng

VLDB: (Very large DB) CSDL rt ln

Dimensions: cc chiu

Dimension Data: chiu d liu

Fact Data: d liu s kin

Cube: khi d liu

Start-schema: lc hnh sao

Snowflake-schema: lc tuyt rI

51. Cc t kha quan trng

Aggregation: tng hp

Attribute hierarchies: cc phn cp thuc tnh

Granularity: th

Metadata: siu d liu

Reporting: bo co

Legacy system:h thng di sn

Extraction: chit

Transformation: chuyn i

52. Cc t kha quan trng

Clean-Up: lm sch

DWH update: cp nht KDL

53. So snh OLTP v kho d liu

X l ton tc trc tuyn (OLTP)

Cng ngh: CSDL quan h

Hng ton tc

Chun ha, khng d tha

Tp trung vo dl hin ti

Tr li cc truy vn n

Ton tc: tnh ton vn, bo mt, ng thi, Locking

X l ton tc

Kho d liu, x l phn tch trc tuyn (OLAP)

CSDL quan h, CSDL a chiu

Chp nhn d tha

Tin tnh ton tng hp

D liu lch s

Phn tch rt phc tp

Tch hp d liu t a ngun

D liu rt ln

Cc cu hi phc tp

54. Tm tt chng 2

Cc thnh phn chnh

• Phng php lun

• M hnh ha

• Qun l d liu

• ETT

• Truy cp v to bo co

Cc t kho

So snh OLTP v OLAP

55. Cu hicho chng 2 ??? Uff... 56. Chng3:Kin trc kho d liu 57. Kin trc kho d liu

Gm 3 tng (layers)

• Tng th hin (Presentation layer)

• Tng x l phn tch trc tuyn (OLAP layer)

• Tng chit (Extraction layer)

58. Kin trc kho d liu chi tit

• Tng th hin

• Tng OLAP

• Tng thu thp

59. Tng 1- Cc h h tr quyt nh

c bit n nh l mt phn ca kho d liu

Cung cp cc bo co, phn tch tin tnh ton, cc th, biu

Cho php phn tch cao trc tuyn d liu

Thm d s tng tc d liu

Cung cp cc giao din ngi dng phc tp

Cung cp kh nng phn tch d liu phc tp bng phuong thc n gin

60. Tng 1-Cc h HTQ (tt)

Kin trc khch ch

Giao din cho KDL trung tm v cc ch dl cc b

Nhiu loi giao din cho nhiu cp user: bo co v phn tch

Cc bo co kinh doanh, c lng, d bo, phn loi, vv

Cc k thut biu din d liu

Cng ngh khai ph d liu

61. Tng 1-Cc h HTQ (tt)

Cng ngh khai ph d liu

• Khm ph ngc vi d on

• Bo co kinh doanh

• Thng k

• Phn tch khuynh hng

• Cc cy quyt nh

• Qui np

• Cc h thng m

• Cc h thng chuyn gia

• Mng nron

• Cc thut ton di truyn

62. Tng 1-Cc bo co

Cc bo co thng theo sau cc lc nh trc

Cc bo co c bit: cc bo co chi tit, so snh da trn cc yu cu hin thi

Cc bo co ngoi l: c a ra cho mt s ngoi l trong vic phn tch d liu

63. Tng 1-Cc cu hi

Khch hng ang mua ci g ? Khng mua ci g ?

Cc n v cnh tranh ang lm g ? H nh hng ra sao n mi quan h gia cng ty v khch hng ?

Loi t mu no c gi t 20.000 n 50.000 USD bn chy nht ?

Mt hng no bn chy nht trong cc k noel gn y ?

64. Tng 2-OLAP

Vo gia cc nm 1990: OLAP-Online Analytical Processing

K thut phn tch a chiu ca a tp d liu ln

12 tiu chun nh gi c cp bi E.F. Codd

D liu c trnh by theo m hnh a chiu

Cng ngh OLAP cho php truy cp nhanh ti cc ton t h tr t bit nh rolling-up, drilling down,..

65. Tng 2-OLAP

L giao din cho KDL v cc bo co tng tc vi d liu

Caching

Ti u ho cu hi

S phn tch cc cu hi thng xuyn

MOLAP/ROLAP/HOLAP

An ton: cp quyn v qun l truy cp

66. Tng 2-nh ngha OLAP

L mt loi phn mm cho php:

• Phn tch

• Qun l

• V thc hin :

• • Truy cp nhanh, nht qun d liu

• • D liu c chuyn i t mc th sang cu trc a chiu

Theo hip hi OLAPwww.olap.org1995

12 tiu chun nh gi OLAP tools ca E.F. Codd

67. Tng 2-12 tiu chun

Khung nhn khi nim a chiu:m hnh a chiu tng ng vi cc vn kinh doanh

Trong sut: h qt csdl, s hn tp ca d liu ngun, v kin trc trong sut ti user

C th truy cp:ch c dl c yu cu cho phn tch c truy cp

Thit lp bo co ph hp:s tng trong dung lng CSDL hoc chiu khng lm gim hiu sut

Kin trc khch ch:H thng OLAP phi tun theo cc nguyn tc c bn c s linh ng, adaptability, and inter-operability

68. Tng 2-12 tiu chun

Chiu chung:cc chiu d liu phi tng ng v cu trc v cc kh nng x l

iu khin ma trn ri rc

H tr a user

Cc ton t qua cc chiu khng b gii hn: nhn dng cc phn cp ca chiu v tin hnh tnh ton trong cc chiu giao nhau.

Thao tc d liu bng trc gic:

Lp bo co linh ng

Khng gii hn s chiu v mc tng hp

69. Tng 2-D liu a chiu Geography Product Item Type Category All City State Country All Time Month Year Day Week All Quarter 70. Tng 2-V d v phn cp 71. Phn cp chiu trong Kho d liu

Specification of hierarchies

Schema hierarchy

• day< { month

Set _ grouping hierarchy

• {1..10}

72. Tng 2-V d d kin v chiu (Dollars_Sold,Min) (Unit_Sold,Sum) (Dollars_Cost,Max) 73. Tng 2-V d ca tng hp Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 74. All Total annual sales ofTV in U.S.A. Date Product Country All, All, All sum sum TV VCR PC 1Qtr 2Qtr 3Qtr 4Qtr U.S.A Canada Mexico sum 75. Cube: Mt li cc Cuboid all time item city supplier time,item time,city time,supplier item,city item,supplier city,supplier time,item,location time,item,supplier time,city,supplier item,city,supplier time, item, city, supplier 0-D(apex) cuboid 1-D cuboids 2-D cuboids 3-D cuboids 4-D(base) cuboid 76. Duyt khi

Visualization

OLAP capabilities

Interactive manipulation

77. Tng 2-V d ca chuyn dch Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 78. Tng 2-V d ca rolling up Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 79. Tng 2-V d ca Drilling down Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 80. Tng 2-Slice/Dice 81. Tng 2-Pivot (Rotate) 82. Tng 2-Cc phng php lu tr dl

D liu c dng cho vic phn tch trc tuyn phi c lu tr theo mt loi CSDL c th truy cp bi cng c OLAP

Cng c OLAP tng tc vi cache and KDL

Cc m hnh chun lu tr d liu cho cc h thng ton tc khng thc thi cho cc php tnh OLAP

Cc h thng x l ton tc: cc m hnh quan h thc th ln-> cu hi m rng ra nhiu bng->rt phc tp, a kt ni, thi gian thc hin lu.

OLAP: cc cu hi phc tp c bit

Lm sao chng ta c th thit k mt CSDL cho php cc cu hi l c th thc hin c ?

83. Tng 2-Cc yu cu ca KDL

c ti u ha cho OLAP

OLTP: d liu c chun ho, khng d tha, khng ph hp cho cc cu hi phc tp

OLAP: cu hi phc tp, cc tng hp c tnh ton trc, d tha cao

D liu trong KDL l read only- thm d liu mi thay v thay i dl c.

Yu cu 1: cc phng php cho vic lu tr dl ti u ha cho cu hi phc tp

84. Tng 2-Cc yu cu ca KDL (tt)

D liu lin kt trong 1 khng gian a chiu

• V d:lng hng ho c bn theo tng khch hng tng ngy v tng sn phm ti tng kho hng.

Cc hng lu tr:

• ROLAP

• MOLAP

• HOLAP

• DOLAP

85. Tng 2-MOLAP (1)

D liu a chiu

CSDL a chiu s dng cho vic lu tr d liu

Ph hp vi cc yu cu ca OLAP

Tng ng trc tip vi cu trc khi dl

Cc vng d liu ri rc v ch mt vng nh cha dl

Dung lng ! khi a chiu n x m x.. x z

86. Tng 2-MOLAP (2)

• D liu c tm thy ti im giao ca cc chiu

Store GL_Line Time FINANCE Store Product Time SALES Customer 87. Tng 2-MOLAP (3) 88. Tng 2-ROLAP (1)

H phn tch trc tuyn quan h

Da trn c s cc CSDL quan h

Cc lc DL c bit dng m hnh ho dl a chiu

c ti u ha cho cc x l OLAP

Bng d kin cha d liu phn tch

Cc bng chiu cha dl tham kho

C 2 kiu m hnh dl: hnh sao v bng tuyt

89. Tng 2-ROLAP (2)

• D liu c tm thy ti im giao ca1ct v1mt hng

Columns Rows Table Key values to join 90. Tng 2-ROLAP (3) 91. Tng 2-So snh R v MOLAP Property Relational Multidimensional Data representation Two dimension Multiple dimensions Data extraction Specific rows Specific dimensions Computations Functions High speed matrix Results Tool specific Matrix 92. Tng 2-HOLAP

OLAP ghp (lai)

Kt hp cc k thut MOLAP v ROLAP

X dng CSDL ROLAP lu tr cc d liu a chiu

Lu trong mng a chiu cc cu hi thng gp.

Giao din vi hai h qt CSDL

93. Tng 2-HOLAP 94. Tng 2-DOLAP

CSDL OLAP

Ly ra mt phn t KDL chuyn giao cho my khch

OLAP v KDL server chy trn my ch

Truy cp trc tip DL khng cn mng

Gii hn cc ngun ti my khch

X dng cho cc ng dng ring l

95. Tng 2-D liu a chiu

Kho dl c ti u ha cho cc cu hi OLAP

Khung nhn khI nim a chiu

ROLAP v HOLAP: d liu a chiu c lu trong cc bng s kin

Cc lc cho lu tr dl a chiu

• Hnh sao

• Hnh bng tuyt

96. Tng 2-D kin v cc chiu

D kin: (Fact)

• Th hin cc vng tin trnh giao dch gc

• Khng ha hn thay i khi c sinh ra

• Lu tr ti cp chc chn ca th

Cc chiu: (Dimensions)

• Thng tin tham kho bi d kin c th c cu trc cho phn tch

• nh ngha cc phn cp tng hp

• Chiu thi gian, cc nhm sp, v vng

97. Tng 2-ROLAP-Lc hnh sao

Phn on d liu

Cc bn khng chun ha

Mt bn d kin c vy quanh bi cc bng chiu

Cc cu hi nhm vo bng s kin v cnh dng bi cc bng chiu

Khng cn thit phI lin kt qua nhiu bng

M hnh ni bt cho KDL

98. Tng 2-ROLAP-Lc hnh sao 99. Tng 2-Lc bng tuyt

Da trn lc hnh sao

Bng d kin

Cc bn chiu c chun ha

100. Tng 2-Lc bng tuyt 101. Tng 2-Ch d liu (1)

L mt tp cc kdl nh

c xy dng cho cc nhu cn ca cc vng hay ban nh

D liu t cc cdl c th c tng hp vo mt kdl trung tm

Hoc cdl c th trch d liu t mt kdl trung tm trnh by cho mt nhu cu ca mt nhm user

102. Tng 2-Ch d liu (2)

Cc l do cho vic xy dng cc cdl cung ng cho 1 mt kdl trung tm

• l mt dng d n kdl nh

• D dng bt u vi n

• Nhm vo mt vng kinh doanh

• D dng v nhanh chng xy dng mt kdl cho ton cng ty

103. Tng 2-Ch d liu (3)

Cc hn ch

• Cc h thng c lp khng d dng tch hp c

• KDL cung cp kh nng tin hnh cc hot ng phn tch rng trong khi cc ch dl ch nhm vo 1 mt khung nhn hn ch.

• Tng thm vic vn chuyn

104. Tng 2-Ch d liu (4)

Cc l do cho vic xy dng cc cdl t mt mt kdl trung tm

• D liu c chuyn i v biu din c yu cu bi mt nhm cc user c bit

• D liu c sn cp a phng

• Cc cu hi c phn b qua mt s cc cdl thay v phi np vo mt kdl trung tm

• Trong mt s trng hp khng cn thit c ton dl

105. Tng 2-Ch d liu (5) 106. Tng thu thp: tng 3

Cc loi d liu ngun

• D liu t cc h thng tc nghip

• H thng k tha

• Cc ngun d liu bn ngoi

ETT (Chit, chuyn i, v chuyn ti)

Cung cp d liu

Siu d liu cho h thng thu thp d liu

107. D liu t cc h thng tc nghip

Cha d liu chi tit v hin ti

c s dng cho cc ton tc hng ngy

Cha d liu thch hp hin hnh

L ngun d liu c tch hp d xy dng Kho d liu

V d employees trong kho d liu l s hp nht ca workers trong Source 1 v managers trong Source 2 108. H thng k tha

Cc su tp dl c khng c dng cho cc mc ch hot ng

Phng phc khc nhau ca vic t chc dl ngc li vi m hnh hin ti

c m ha nu cn thit khi h thng qua x dng

Thng tin khng y v cu trc v ng ngha ca dl h thng k tha

109. D liu t h thng ngoi

D liu c ly t cc ngun bn ngoi

Vi d: dl phn tch th trng, dl bo co thi tit, thu,

Khng phI l d liu c to ra trong cng ty

C th c cu trc v m ha hon ton khc nhau ph thuc vo nh cung cp

c yu cu cho cc phn tch chi tit

110. Chit d liu

D liu c chit t cc ngun bn ngoi

nh ngha s thng xuyn ca chit

nh ngha nh chp nhanh ca dl c chit

nh ngha cc mc dl c thay i sau cp nht mi nht

111. Chit d liu

D liu duc chit ra t nhiu ngun nhiu kiu d liu khc nhau: quan h, tp, HTML, XML,

112. 113. Lm sch

Tm v loi tr cc b trng nhau

• Jane Doe vs. Jane Q. Doe

Kim tra tnh nht qun Khm ph ra d liu sai, khng nht qun:

• Ngay trong bn thn n: s phone ng khng, d liu c ngoi vng xc nh khng

Sa, hon chnh d liu thiu, khng c c, hay cc gi tr rng (NULL)

• Ch ra cc li, v (c th l chn cc gi tr mc nh)

Cnh bo cho cc ngun cc kho d liu v cc li tm c

114. S chuyn i

Loi tr cc d liu gy nhiu

Chuyn i d liu vo mt lc nht qun.

Cc lut cho vic chuyn i

Tri thc v d liu

Cc quyt nh v thca d liu

Dch kiu d liu v tp k t

115. Cung cp d liu

Np d liu vo kdl

Tnh ton cc bn tng hp

Tnh ton cc trng c suy dn

Cung cp Online/offline

Lp lch cho tin trnh cung cp

116. Tng 1: Siu d liu

Lu thng tin v cc ngun d liu bn ngoi

Thng tin v m hnh kho d liu

iu khin cc ng dn, chit v np d liu, thit lp cc cu hi

Lu thng tin v qu trnh np d liu

117. Tng 1: Siu d liu

Siu d liu k thut

• Cc ngun, bo mt, vvv

Siu d liu kinh doanh

• Cc lut chuyn ho

Siu d liu thao tc

118. Kin trc kho d liu chi tit 119. Cu hicho chng 3??? Uff... 120. Chng 4:M hnh d liu a chiu 121. Ni dung chng

Cc khi nim chnh ca m hnh d liu a chiu

• D kin (Fact)

• Chiu (Dimension)

• th

• Tng hp

Cc m hnh lu tr

122. M hnh d liu a chiu

c xut v thit k cho mt mc ch phn tch d liu

M hnh d liu ny khng ph hp cho h thng OLTP

M hnh d liu ny c thao tc bi cc cng c OLAP

• Cc cng c ny cung cp cc phng tin truy vn mnh da trn thit k m hnh d liu a chiu

• V d nh: TARGIT Analysis, SQL OLAP Server

123. M hnh d liu a chiu Location Time Store District Region All Month Year Day Week All Quarter Product Product Brand Manufacturer All 124. Cc thnh phn chnh

Cc d kin (Facts)

• Miu t cc vng kinh doanh

• Khng thay i khi n c sinh ra

• c lu ti mt cp th no

Cc chiu (Dimensions)

• Thng tin tham chiu qua cc d kin c th c cu trc cho vic phn tch

• nh ngha cc phn cp

V cc khi a chiu (Cubes)

125. Khi

Mt khi c th c nhiu chiu

• Nu c nhiu hn 3 chiu s c gi l siu khi (hypercube)

• V mt l thuyt th s chiu l khng hn ch

• Thng th s chiu l t 4 n 12

Mt khi bao gm nhiu d liu

• L mt lin kt gia cc gi tr ca chiu

• Mt c th l rng (khng c d liu cho lin kt ny)

• Khi tha ( sparse cube): c nhiu rng

• Khi dy c ( dense cube): c t rng

126. V d v rng 127. V d v d kin v chiu

Kho Grocery

D kin:

• POS:point of sales s kin bn hng

Chiu:

• Thi gian (Time)

• V tr Kho (Location - Store)

• Sn phm (Product)

• Qung co (Promotion)

128. Khi Grocery 129. Cc k hi nim v chiu

Min phn cp

Cc cp (Levels), cp tng ng vi cc th

Lc chiu Dimension schema

Cc ton t chiu Dimension operators

130. Cc v d v chiu 131. Thuc tnh chiu

Mt chiu bao gm nhiu thuc tnh. V d nh:

• Time dimension: day, month, year

• Product dimension: ProductID, LineID, BrandID

Mt chiu c cu trc/ t chc dng phn cp:

• Time dimension: day weekquarter

• Product dimension: productbrandmanufacturer

Cc thuc tnh xc nh cp no m mt phn t chiu thuc vo

Cc phn t time c cng nm, thng thuc v cp month

Tt c phn t product c cng brand thuc v cp brand

132. V d v vng phn cp 133. Lc chiu v phn cp Geography Store District Region All Time Month Year Day Week All Quarter Product Product Brand Manufacturer All 134. Cc ton t chiu 135. D kin (Fact Data)

Cc d kin s (Numerical measures)

c truy cp bi cc chiu

Fact Summary Fact 136. D kin (Fact Data)

Cha d kin suy dn

Unit_Sales Unit_Price / Average_Selling_Price January_Unit_Sales Unit_Sales Unit_Sales Unit_Sales Unit_Sales Unit_Sales Unit_Sales + January 137. D kin (Fact Data)

Ccbng cha d liu ln

D liu c dn nhn thi gian

Time 1992 1997 138. V d v d kin (Dollars_Sold,Min) (Unit_Sold,Sum) (Dollars_Cost,Max) 139. Khi a chiu (Cube) Time Store District Region All Location Month Year Day Week All Quarter (Dollars_Sold,Min) (Unit_Sold,Sum) (Dollars_Cost,Max) Product Product Brand Manufacturer All 140. V d v khi 3 chiu 141. V d v tng hp (Aggregation) Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 142. V d ca chuyn dch Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 143. V d: rolling up v drilling down 144. V d ca rolling up 145. V d ca rolling up Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 146. V d ca Drilling down Geography Product Time Item Type Category All City State Country All Month Year Day Week All Quarter 147. V d v Slice v Pivot 148. ROLAP 149. M hnh d liu a chiutrong csdl quan h 150. Lc hnh sao tng qut 151. Lc hnh sao

Phn on d liu

D liu khng chun ha

Mt bn d kin v cc chiu bao quanh

Cc cu hi nhm vo bn d kin v c cu trc bi cc bn chiu

M hnh ni bt ca KDL

152. V d lc hnh sao c 4 chiu 153. V d lc hnh sao vi d liu 154. Cc lc ca ROLAP 155. Lc hnh bng tuyt

Cn c vo lc hnh sao

Bn d kin ging nh luc hnh sao

Cc chiu c chun ho (chun 3)

Cc chiu c cu trc r rng

156. V d v lc bng tuyt 157. V d v lc bng tuyt 158. Chiu trong lc hnh bng tuyt 159. Cc lc ca ROLAP (6) a fact hnh sao( Multi fact star schema ) 160. Kha trong lc ROLAP Time Product Store Single Column Time Key Single Column Product Key Single Column Store Key Composite Key 161. Cc kho

Kha chnh nm trn cc bn chiu

Kho ngoi nm trn bn d kin

To lp cc index tng tc

Kho c xc nh trong giai on thit k

Cc kha kt hp c th c p dng

162. Cc thuc tnh ca bn d kin Non-additiveKhng lin kt Semi-additive Lin kt vi mt s chiu Additive Lin kt vi tt c cc chiu 163. Cc thuc tnh ca bn d kin Additive Cost by Product + Store + Time Cost byProduct + Promotion + Time Revenue by Product + Promotion + Time Revenue by Product + Promotion + Store + Time . . . Semi-Additive Sales Fact Time_key Product_key Store_key Promotion_key Quantity_sold* Revenue* Cost* Customer Count Time Dimension Store Dimension Product Dimension Promotion Dimension 164. Chiu d liu

D liu ca chiu xc nh cu trc v min ca cu hi

D liu ca chiu lin kt vi d kin thng qua cc kha

Customer Suppliers Time Products SalesItems Query path 165. Chun ha chiu

D liu chun ha khng

• D tha

• Trng lp

• Cc ct kha c lp

D liu khng chun ha

• Tng tc tr li cu hi

• Tn ti trong kho d liu

166. th d liu

• D liu c lm cho ph hp vi KDL ti mt mc chc chn ( th)

• Cn c vo th cc tng hp c nh ngha

• th cao: nhiu d liu hn, th thp: t d liu hn

Cc cu hi:

• th no c sn ?

• th no hp l v tin dng cho KDL

Xu hng lu tr d liu c th cao nht, v khi gim th th d liu chi tit khng th phc hi c

167. th d liu

Tc ng n kho dl

• Dung lng ca kdl

• Cp phn tch

• Tnh mm do

Cp chi tit ca d liu

• Ngy, Thng, Nm

• Tnh, quc gia,

Phn tch cc yu cu trnh d tha hay thiu ht d liu

Kho st, lm mi nu cn thit

168. Cc bng tng hp

Mc ch: tr li nhanh cc cu hi thng gp

Cc bc:

• Nhn din cc cu hi thng gp

• Nhn din cc chiu v cc tng hp tng ng

• nh ngha phn cp ca cc tng hp

• To mt cch c chn la cc bn d kin tng hp tnh ton trc

• To cc bng chiu tng hp

169. Cc bng tng hp

Vic dng cc tng hp c tnh ton v lu tr trc l mt hiu qu ln i vi kho d liu iu khin v lm tng hiu sut cu hi

Kimball 1996

170. Chng5: K thut m hnh ho cc chiu c s 171. Gii thiu

Cc bc m hnh kho d liu

th d liu (Data Granularity)

Lu tr d liu

Cc phn cp thuc tnh

Truy vn KDL v OLAP

Cc li thng gp khi xy dng 1 KDL

V d

172. Cc tng

Tng khi nim Conceptual layer d liu v x l d liu

Tng logic Logical layer d liu v x l kinh doanh

Tng vt l Physical layer cu trc bn trong

Cc ch th, d kin v mi quan h

173. Tng trong h thng thng tin Conceptual Layer Logical Layer Physical Layer Physical Layer Logical Layer Operational systems Warehouse 174. 175. Cc thnh phn chnh

Phn cp thuc tnh ca cc chiu

Mi quan h

D kin

Product Dimension Manufacturer BrandProduct Account Year Time Dimension Account Week Region Location Dimension Store Product_key Store_key Acct_Week_key Sales Data District 176. Cc tin trnh m hnh ha

Xc nh yu cu ca ngi dng

Hng dn ngi dng hiu v cngngh KDL

177. Cc tin trnh m hnh ha

nh ngha m hnh kinh doanh

M hnh ha cc chiu

Chn m hnh lu tr

Conceptual Model Physical Model Logical Model 178. Cc cng c v phng php

Chn cc cng c vi giao din ha

• To lp ti liu

• nh ngha cc lin kt v rng buc

Phng php lun

M hnh ho

Xy dng sn phm

179. Tm lc cc lc d

• Sao

• Bng tuyt

• a sao

180. M hnh ha cc chiu

M hnh da vo ni dung ca d liu

M hnh vi cc tng hp cn thit

M hnh phi p ng yu cu phn tch su, v tng hp

C th khng chun ha - star

C th chun ha - snowflake

Xy dng cc phn cp

181. M hnh cc bng tm tt

nh ngha cc bng tm tt trc khi thit k

Dng cc bng ring cha cc tng hp/tm tt

SALES FACTS Sales$ Region Month 10,000 North Jan 97 12,000 South Feb 97 11,000 NorthJan 97 15,000 West Mar 97 18,000 SouthFeb 97 20,000 NorthJan 97 10,000 East Jan 97 2,000 West Mar 97 SALES BY MONTH/REGION Month Region Tot_Sales$ Jan 97 North 41,000 Jan 97 East 10,000 Feb 97 South 40,000 Mar 97 West 17,000 SALES BY MONTH Month Tot_Sales Jan 97 51,000 Feb 97 40,000 Mar 97 17,000 182. Khi no th tm tt d liu

Phn tch v a ra quyt nh truy cp trc tip cc tng hp c sn hay tnh ton ti thi im thc hin cu hi.

Vic tnh ton cc t s nn cho php quyt nh nn chn phng n no

Queried Rows Displayed Rows Calculation Ratio 1,341 22 22/11341 0.0164 234 22 22/234 0.09 30 22 22/30 0.73 20 22 22/20 1.1 183. Cc cng c

Logic Works

Micro Strategy

Oracle Designer/2000 Data Mart Designer

Prism Solutions

Smart Corporation

184. V d Kho d liu: Grocery Store

Mt dy chuyn cc ca hng tp phm nm ri rc 3 bang M

Cc kho: cc siu th vi cc ca hng nh tp phm, b sa, tht, thc n lnh, bnh m, ung, ..

Khong 60.000 sn phm ti mi kho

V d in hnh ca KDL trch t KIM 96

185. C s

D liu sn sng cho vic xy dng KDL

• D liu t cc h thng ngun: OLTP

• c lm sch

Xy dng kho DL:

• M hnh cc tin trnh kinh doanh no ?

• nh ngha th ca d liu ph hp vi KDL

• M hnh ho cu trc KDL

• Bin i d liu theo cu trc Kho DL

• Tnh ton cc tng hp v cc d kin suy dn

186. Cc tin trnh m hnh

KDL miu t khung nhn ca mt tin trnh kinh doanh

S quyt nh m hnh tin trnh kinh doanh no c tc ng quan trng

• Nhm vo cc vn g ?

• Cc cu hi c t ra ?

• Cc thng tin cn thit

• KDL trung tm hay cc ch d liu

187. Tin trnh kinh doanh

D liu OLTP

• Point of sales (POS) data: D liu bn hng

• D liu nh cung cp

• D liu k ton

• D liu khch hng

• S qung co

• Mc ch: Xy dng mt CSDLhot ng hng ngy

188. V d v th

th no cho d liu POS? Cc kh nng ?

• Ton tc n theo tng khch hng tng sn phm ti tng kho

• Ton tc nhm theo tng khch hng tng sn phm ti tng kho

• Ton tc nhm hng ngy theo tng kho tng sn phm

• Ton tc nhm hng tun theo tng kho tng sn phm

• Ton tc nhm hng ngy tng sn phm ti tng vng

189. th

Ton tc nhm hng ngy theo tng kho tng sn phm

• D kin theo tng khch hng tng sn phm ti tng kho khng ph hp cho vic phn tch th trng

• D kin theo tng tun, hay thng cng khng ph hp v s khngphn tch c s khc nhau gia cc ngy

S quyt nh th no ph thuc vo tin trnh kinh doanh v cc cu hi cn tr li

190. Tng 2-Cc phng php lu tr dl

D liu c dng cho vic phn tch trc tuyn phi c lu tr theo mt loi CSDL c th truy cp bi cng c OLAP

Dng loi no trong:

• MOLAP

• ROLAP

• HOLAP

• Cc ch d liu

191. V d: Kho DL Grocery

Cc CSDL quan h

CSDL quan hc s dng trong OLTP ti cc cng ty

Cc chuyn gia CNTT ti cc cng ty lm quen nhiu vi CSDL quan h

ROLAP c dng rng rI

ROLAP c dng lu tr KDL Grocery

192. Cc buc thc hin

Chn cc tin trnh kinh doanh cho m hnh

• Sales

Chn cp ca tin trnh kinh doanh

• SKU by Store by Promotion by Day

• Chn th

Chn cc chiu

• Time, Store, Promotion, Product

Chn cc d kin

• Dollar_sales, unit_sales, dollar_cost, customer_count

193. 194. c lung dung lung

Time dimension: 2 years = 730 days

Store dimension: 300 stores reporting each day

Product dimension: 30,000 products, only 3000 sell per day

Promotion dimension: 5000 combinations, but a product only appears in one combination per day

Number of fact records: 730*300*3000*1 = 657,000,000

Number of fields: 4 key + 4 fact = 8 fields

Total DB size: 657,000,000 * 8 fields * 4 bytes = 21 GB

195. D kin (Facts) v Chiu

D kin:

• Miu t cc vng kinh doanh

• Khng thay i khi n c sinh ra

• c lu ti mt cp th no

Chiu:

• Thng tin tham chiu qua cc s kin c th c cu trc cho vic phn tch

• nh ngha cc phn cp

196. V d v d kin v chiu

Kho Grocery

D kin:

• POS: s kin bn hng

Chiu:

• Thi gian (Time)

• Kho (Store)

• Qung co (Promotion)

• Sn phm (Product)

197. Chn lc no cho Grocery ?

Lc bng tuyt c chun ha cao

S dng t khng gian a hn

Vic truy cp cc bng phc tp hn bi phi tham chiu n nhiu bng

Lc hnh sao d qun tr hn, v p ng yu cu tr li nhanh cu hi

• Chn luc hnh sao cho KDL Grocery

198. Cc thuc tnh

Quyt nh chn cc trng no a vo bng d kin v chiu

Cc phn cp thuc tnh

Cc cp tng hp

Xem xt cc kh nng ca cu hi v cc rng buc ca cc bn

Cc tc ng ca cc ton t OLAP

199. V d ca bng d kin

Cha d liu thch hpcho vng kinh doanh

Bao gm cc kho ca cc chiu tham chiu

D liu c ly t h thng OLTP: d liu bn hng POS

th: sn phm c bn hng ngy ti tng kho

nh ngha ni lu tr cc tng hp

200. V d ca bng d kin

Cc thuc tnh d kin bn hng:

Keys

• Time_key

• Product_key

• Store_Key

• Promotion_key

Facts

• Dollars_sales

• Units_sales

• Dollars_cost

• Customer_count

201. V d ca bng d kin

Kho ca bng d kin c hp thnh t bn kha ngoi ca cc bng chiu

Cc d kin c ly t h thng bn hng POS

Cc thuc tnh suy dn dng cho vic phn tch

Dung lng: ???

202. V d ca chiu: thi gian

Chiu thi gian (Time) l mt chiu c bn c trong tt c cc KDL

Cc thuc tnh phn cp t nhin:

• Nm->Thng ->Tun ->ngy

C cu trc khng n gin do:

• C nhiu loi phn cp, a phn cp (Multi hierarchies)

203. V d ca chiu: thi gian 204. V d ca chiu: thi gian 205. V d ca chiu: Sn phm

Nhn dng mi sn phm bi SKU (Stock Keeping Unit)

Da trn cc m sn phm ph thng (UPC - Universal ProductCode( UPC ) )

Bao gm cc m t bit cho vic lu tr sn phm nh tht ti,..

Lu miu t ca cc sn phm

Dung lng, cc nhm sn phm, cc nhnh,.

206. V d ca chiu: sn phm 207. V d ca chiu: sn phm 208. V d ca chiu: sn phm

c qun l bi tng kho v c phn b n cc kho

nh ngha loi ca phn cp

Chun ha v khng chun ha

Thng c thm nhiu thuc tnh ph c trong chiu sn phm

209. V d ca chiu: kho

Miu t mi kho ca h thng lin kt cc ca hng tp phm

Chiu a l

c to ra ti tng kho bi vic thu thp thng tin t cc kho

C hai loi phn cp: phn cp a l v vng bn hng

Cc thuc tnh miu t kho: dung lng, v tr,.

210. V d ca chiu: kho 211. V d ca chiu: kho

Phn cp a l:

• Store->Store_zip->Store_county->Store_state

Phn cp vng bn hng

• Store->sales_district->sales_region

212. V d ca chiu: kho 213. V d ca chiu: Qung co

Miu t iu kin mt sn phm c bn, v d: gim gi tm thi, s tr gip ca bo,..

c gi l chiu nguyn nhn: yu t c ngh ti thay i vic bn sn phm

Cc iu kin lin quan mt thit: gim gi, hay phiu thng

phn tch cc sn phm c bn tng ln trong qu trnh qung co

Khng dng phn tch cc sn phm no khng bn c.

214. V d ca chiu: qung co 215. V d ca chiu: qung co

Ginh c trong giai on khuyn mi

C hay khng cc sn phm s tt xung ngay sau khi kt thc qung co

C hay khng vic bn cc sn phm tng ln trong qu trnh qung co

C hay khng vic bn cc sn phm lm tng vic bun bn tng th so vi giai on trc

216. V d ca bng d kin

Cc thuc tnh d kin bn hng:

Keys

• Time_key

• Product_key

• Store_Key

• Promotion_key

Facts

• Dollars_sales

• Units_sales

• Dollars_cost

• Customer_count

Cc thuc tnh ph tr cho vic phn tch 217. V d ca bng d kin

Thm vo:

• Dollar_sales, uni_sales, v dollar_cost, v ph thuc vo cc chiu

• C kh nng tnh ton cc tng hp trong tt c cc chiu, v d: vic bn hng hay chi ph tng tun, tng thng, tng nhm mt hng, tng vng

• Customer_count khng ph thuc hon ton vo cc chiu

218. V d ca customer_count:

Customer_count theo tng tun tng sn phm tng kho c th tnh ton c

Customer_count theo tng tun, tng vng bn hng c th tnh ton c

Customer_count theo tng tun, tng nhm( sn phm hng theo tng kho khng th tnh ton c:

• Lng hng ha cho sn phm A ti kho 1 c customer_count l 20

• Lng hng ha cho sn phm B ti kho 1 c customer_count l 60

• Lng hng ha cho hai sn phm A v B ti kho 1 c customer_count nm gia 20 va 80

219. Thay i customer_count:

Thay i th bng vic lu li cc ton tc n theo tng customer-> customer_count c th tnh theo tng nhm

Tnh customer_count theo phn cp ca chiu kho: store brand, subcategory,

220. Cc bng tng hp

Mc ch: tr li nhanh cc cu hi thng gp

Cc bc:

• Nhn din cc cu hi thng gp

• Nhn din cc chiu v cc tng hp tng ng

• nh ngha phn cp ca cc tng hp

• To mt cch c chn la cc bng d kin tng hp tnh ton trc

• To cc bng chiu tng hp

221. Nhn din cc cu hi thng gp

To mt danh sch cc cu hi thng gp

Tin hnh trong giai on thit k KDL

Cn c trn h thng OLTP v cc bo co

Nhng: c theo di v tin hnh trong qu trnh thao tc ca KDL: xem th cc user ang lm g !

Tc ng ca user vi cc kh nng

Thit lp danh sch

222. V d nhn din cc cu hi

Lng hng ho bn c ca bnh m trong sut cc giai on ngh so vi cc giai on khc

Lng hng ho bn c trong cc qun pha ty so snh vi cc qun pha ng

Lng hng ho bn c thc n nhanh trong 24 thng gn y

S c li ca qung co bng bo ch so vi radio, tv

223. Nhn din cc chiu

Chn cc chiu lin quan thng xuyn n cc cu hi

Xem xt dung lng ca cc bng tng hp

224. V d nhn din cc chiu

Cc chiu:

• Sn phm (Product) ?

• Store ?

• Time ?

• Promotion ?

• Chn chiu no ?

225. Nhn din cc phn cp

Vi mt chiu, to (cc) phn cp cn c trn cc thuc tnh sn c

Xem xt cc cu hi thch hp

Xem xt cc d liu sn c

Xem xt cc thuc tnh ca bng d kin

226. Phn cp Product 227. Phn cp Store 228. Phn cp Time 229. Cc bng d kin tng hp

Nhn din cc bng d kin yu cu

Cc tng hp th t cao c th c tnh ton t cc tng hp th t thp,

• v d: lng hng bn c theo tng thng c th tnh c da trn lng hng bn c tng ngy trong thng.

c lng dung lng

Kim tra s sn c ca d liu

Kim tra cc bng tng hp chiu cn thit

230. V d bng d kin tng hp

Cc bng d kin tng hp c yu cu:

• Tng hp 1 chiu:

• • Tng loi sp theo tng kho theo tng ngy

• • Tng loi sp theo tng kho theo tng thng

• • Tng loi sp theo tng kho theo tng nm

• Tng hp 2 chiu:

• • Tng loi sp theo tng kho theo tng ngy

• • Tng loi sp theo tng pho theo tng thng

• • Tng loi sp theo tng qun theo tng nm

231. V d bng d kin tng hp

Cc bng d kin tng hp ny ly c t bng d kin c s

Kim tra cc thuc tnh ph:

• Dollar_sales ?

• Unit_sales ?

• Dollar_cost ?

• Customer_count ?

232. Lin kt gia d kin v chiu

Lin kt gia bng d kin vi cc bng chiu trong lc hnh sao

Lin kt gia cc bng d kin tng hp cn c trn cc phn cp ca cc bng chiu

nh ngha cc thuc tnh phn cp ti cc bng chiu

233. Cc bng d kin tng hp

Cc bng d kin ph c th c thm vo khi c yu cu cn thit

S lng v dung lng ca cc bng d kin c th bng n t hp

Kim tra cc bng d kin no l cn thit v c th tnh ton c

234. Cc bng d kin tng hp

Tnh theo cc chiu

Product: theo category, theo..

Store: theo district, theo region,

Time: month, year

235. Tng hp 1 chiu

Category theo Store theo ngy

Region theo Product theo ngy

Theo thng theo product v theo Store

Ton b cc mt hng theo kho theo ngy

236. Truy vn bn d kin tng hp

Cc cu hi c chuyn sang dng lnh SQL

V d:

• Trnh by s lng hng bn c theo loi ti kho A vo ngy u nm 2003 da vo bng d kin co s:

• • Select category_description,sum(sales_dollars)

• • From base_sales_fact,product,store,time

• • Where base_sales_fact.product_key=product.product_key

• • Andbase_sales_fact.store_key=product.store_key

• • Andbase_sales_fact.time_key=product.time_key

• • Andstore.city=A and time.day=January 1 2003

• • Group by category_description

237. Truy vn bng d kin tng hp

Nu bng tng hp category tn ti

• • Select category_description,sum(sales_dollars)

• • From category_sales_fact,product,store,time

• • Where category_sales_fact.product_key=product.product_key

• • Andcategory_sales_fact.store_key=product.store_key

• • Andcategory_sales_fact.time_key=product.time_key

• • Andstore.city=A and time.day=January 1 2003

• • Group by category_description

Category_sales_fact v chiu tng ng category_product thay th cho base_sales_fact v chiu product

238. Truy vn bng d kin tng hp

c cu hi v chuyn sang cu hi tng hp sn c

Siu d liu cung cp thng tin ca cc bng tng hp c sn

S tn ti ca cc bng tng hp l trong sut i vi ngi dng

C th xy dng cc cu hi thng k

239. Truy vn bng d kin tng hp

Thay th bng v cc chiu c s bng cc mng v chiu tng hp

Sp xp cc bng tng hp

Bt u t th chi tit nht

240. Chi ph qun l cc view 241. Chng6:Siu d liu 242. Siu d liu l g

D liu v d liu data about other data

Tp cc thuc tnh ,hay phn t cn thit cho vic miu t ngun thng tin

V d :mt tp cc bn ghi vi cc phn t m t mt cun sch :

tc gi author tn sch title ngy xut bn date of publication Miu t description

243. Siu d liu Khi nim

Siu d liu l thnh phn c bn xy dng v qun l mt kho d liu

Trc khi mt kdl c th c truy cp mt cch c hiu qu ,thc s l cn thit hiu ,d liu g sn c trong kdl ,v chng lu tr u .

D liu miu t qu trnh xy dng ,qun l v hot ng ca KDL

Siu d liu c lu tr trong mt kho cha v c truy cp bi tt c cc thnh phn ca kdl

244. Siu d liu 245. Khi nim siu d liu

L mt lu tr dng :

• Miu t KDL tng th

• Nhn dng kiu kho d liu

• Qun l qu trnh tch hp d liu

• Qun l qu trnh cp nht KDL

• Qun l bo mt

Hip hi chuyn nghin cu v siu d liu Metadata Coalition a ra c t ca siu d liu vo nm1996MDIS Metadata Interchange Specification

246. S quan trng ca siu d liu

Rt quan trng trong kho d liu

Khng phi l d kin phn tch

L cha kha quyt nh s thnh cng ca kho d liu

L thnh phn lun c thay i ,cp nht theo s pht trin ca kho d liu

Dng qun l ,iu khin kho d liu

Warehouse Metadata Repository ExternalSources Operational Data Sources 247. Cht lng ca siu d liu

Qun l c s tch hp

Th hin c tnh lch s ca d liu

Qun l c cc thay i

248. S hnh thnh siu d liu

Trong qu trnh xy dng kdl :

• Sn sinh mt cch t ng

• c to ra trong qu trnh xy dng kdl

ng dng :

• Miu t Kdl v cc thnh phn

• To iu kin cho vic truy cp KDL mi cp

Bo tr :

• Phc v cho cc mc ch bo mt

• Lu tr thng tin v ngi dng

249. Cc bc to lp siu d liu

nh ngha cc chc nng chnh ca siu d liu trong h thng kho d liu

Xc nh cc vn trong tch hp d liu .

Xc nh siu d liu c th c to nh th no ,ai to ra v c lu tr u

Miu t ni dung ca siu d liu

250. Chin lc cho siu d liu

a ra mt chin lc cho vic tin hnh xy dng v s dng kho d liu

Phi m bo c siu d liu c cht lng cao

Cung cp cho ngi dng thng tin c cht lng cao

m bo vic qun l d liu tch hp

• Nhm vo mc ch n l g

• Ngun v thng tin v ngun

• Bo tr v qun l

• Cc chun ha

• Truy cp v cc cng c

• Tch hp v pht trin

251. Phn tch mc ch

Cc nh

Cc yu cu

Qun l s truy cp ,ai s truy cp v truy cp nh th no

Xc nh cc ngun

Cc hng tch hp

Qun l s thay i v tin trin ca KDL

252. Cc loi ngun ca siu d liu

Xc nh ai l ngi dng kho d liu?

H cn ci g?

Siu d liu cha ci g?

S s dng cng c g xy dng kho d liu?

253. Cc k thut

Cc cng c m hnh ha

nh ngha cc lc CSDL

Cc cng c h tr cho ETT

Cc cng c cho ngi dng cui

Cc cng c to ti liu k thut

254. V tr siu d liu

Lu ti my ch cha kho d liu

C th c lu ti cc csdl ngun

Ti my PC c cng c qun l siu d liu

Qun l bi ngi qun l siu d liu

Cc chun ha c sinh ra bi cu trc siu d liu

255. Cc cng c v vic truy cp

Ai truy cp?

Khi no ?

Vi mc ch g?

Cng c cho vic qun l

Cng c qun l cu hi

Cng c cho vic xy dng kho d liu

256. Cc loi siu d liu chi tit

H tng tc Operational

• Cc tin trnh np ,qun l v lp lch cho vic cp nhp kdl

ETT

• Qun l cc cu trc ,nh x

• Thng tin ngun v ch

• Qun l vic chuyn i

Ngi dng cui( End user)

• H tr vic s dng kho d liu

• H tr vic kho st kdl

• H tr vic cung cp thng tin cho kdl

257. Siu d liu h thng tng tc

Siu d liu cho h tng tc miu t phm vi ,gii hn mi trng ca kdl

Xc nh nhng d liu no cho php hay khng cho php kdl truy cp

iu khin qu trnh truyn d liu t ngun vo kdl

Cung cp cc thng tin cho cc nh pht trin trong qu trnh xy dng cng nh m rng kdl

No data nothing

258. Siu d liu cho ETT

nh x d liu t cc ngun vo kdl

Warehouse Data Warehouse Data Model Metadata Repository Internal sources Externalsources Operational data sources Browser: http:// Hollywood X + Customers: a recorof as X + Customers: Browser: http:// Hollywood Browser: http:// Hollywood X + 12345.00 12780.00 2345787.00 87877.98 5678.00 100% 110% 230% 200% -10% ABC CO GMBH LTD GBUK INC FFR ASSOC MCD CO 259. Siu d liu cho vic chit(1)

Cc lut kinh doanh

Cc kha ,trng v bng ngun

Qun l vic s hu d liu

Chuyn i gia cc trng

Cc bn tra cu

Thay i tn

Cc thay i gi tr kha

Cc gi tr mc nh

Qun l a ngun

Cc thut ton

Nhn thi gian

Staging File ExternalSources Operational Data Sources Extraction 260. Siu d liu cho vic chit(2)

Cc yu cu v lu tr

Thng tin v v tr cc ngun

S khc nhau gia cc ngun

Thng tin truy cp

Bo mt

Cc lin h ,lin h vi ai c d liu

Cc tn chng trnh

Cc thng tin qun l tnh cht ca d liu

ExternalSources Operational Data Sources Extraction 261. Chuyn i

Phng thc chuyn i

Cc chc nng xc nh d liu

Cc lut pht trin kdl

Thng tin lin h

Externalsources Operational data sources Warehouse Metadata repository ETT Mapping Staging file Transport 262. Tch hp v thay i

Siu d liu qun l vic tch hp d liu

Siu d liu dng cho vic trao i thng tin

Qun l vic chuyn i siu d liu

Xem xt chu k lm ti kho d liu

263. Siu d liu ngi dng cui(1) Warehouse Metadata Repository End User Operational ETT Mapping IT staff Users 264. Siu d liu ngi dng cui(2)

Ngi dng vi mc ch phn tch n gin :yu cu cc bo co chun t mi trng kdl

Ngi dng vi mc ch thm d .Cn thit tham d d liu nhiu cp .H s dng cc ton t Rolling up v Drilling down thm d tng tc gia cc ch th kinh doanh gip cho vic a ra quyt nh

Ngi dng vi mc ch phn tch :Thc hin cc phn tch thng k ,v a ra cc quyt nh

265. Siu d liu ngi dng cui(3)

V tr ca cc chiu v d kin

Miu t ni dung

Cc thut ton to ra cc tng hp

Thng tin v ngi s dng kdl

Warehouse Metadata repository End User 266. Siu d liu ngi dng cui(4)

Cn thit bit ng cnh ca cu hi

Warehouse Metadata repository End User 267. Siu d liu ngi dng cui(5) Table Column Data Meaning NameName Product Prodid 739516Unique identifier for the product ProductValid_date 01/97Last refresh date ProductWare_loc 1816Warehouse location number ProductWare_bin 666Warehouse bin number ProductCode 15The color of the product; pleaserefer to table COL_REF for details ProductWeight 17.62Packed shipping weight inkilograms 268. Siu d liu ngi dng cui(6)

V tr ca cc chiu v d kin

Miu t ni dung

Cc thut ton to ra cc tng hp

Thng tin v ngi s dng kdl

Warehouse Metadata repository End User 269. Ng cnh ca d liu(1)

H tr s thay i theo chiu thi gian

Lu tr cc thay i ca thng tin

Operational Warehouse Metadata repository Structure Content 9293949596 270. Ng cnh ca d liu(2)

Dng n gin

• Cc cu trc d liu

• Cc chuyn i tn

• Cc nh x

Dng phc tp

• Cc nh ngha sn phm

• Gi c

Ngun ngoi

• Tc ng ca nn kinh t

• Chnh tr

Warehouse 9293949596 271. Siu d liu ph tr

Cc thut ton tnh ton cc tng hp

Th hin cc quan h( ngun - ch ,phn cp ,..)

Thng tin qun l

Cc cp quyn

Phn tch mu

Cc bng tra cu

272. c t siu d liu MDIS(1)

Hip hi chuyn nghin cu v siu d liu Metadata Coalition a ra c t ca siu d liu vo nm1996MDIS Metadata Interchange Specification

273. c t siu d liu MDIS(2)

Metadata Coalition l mt nhm m ca cc cng ty nh IBM ,Informix v Prism Solutions

Muc ch ca MC l to ra cc chun ha v :

• C ch truy cp

• API cho siu d Iiu

• Cho php ngi dng iu khin v qun l vic truy cp v thao tc siu d liu trong mi trng ca h thng qua cc cng c siu d liu

274. t t siu d liu MDIS(3)

MDIS c th c m rng .M hnh siu d liu ca MDIS miu t cc thc th v mi lin h gia chng

Database :th hin cho h thng CSDL hay mt nhm cc files .

Mt database cha nhiu records ,v mt record cha mt s element l thnh phn b nht

Subschema :th hin mt lc logic con

275. t t siu d liu MDIS(4)

Relationship :th hin mi quan h gia cc i tng .Cc mi quan h bao gm :

• Equivalent

• Derived

• Inherit from

• Contain

• Include

• Link to

Dimension th hin cc bn chiu trong m hnh a chiu

Level :th hin cp trong lc phn cp ca chiu

Mi mt t t u c header miu t cc thng tin v d liu u lu tr

276. Ngn ng Telos miu t MDIS

c pht trin bi trng i hc Toronto v mt s d n ti chu u vo cui nhng nm1980 s

Miu t cc i tng v cung cp s kt ni gia chng

Ngoi vic cung cp c php n cn cung cp v mt ng ngha ,cc m hnh siu d liu .

V c ng dng rt nhiu trong cc h thng thng tin :DW ,Sematic Web ,

277. Cc cng c qun l siu d liu

Carleton

Evolutionary Technologies

Hewlett Packard

Informatica

Information Advantage

Oracle Designer /2000

Platinum Technology

Prism Solutions

Sagent

278. Chng7:P hng thc xy dng kho d liu 279. Mc ch

Chng thc vic s dng phng php lun khi pht trin mt gii php kho d liu

Xc nh phng thc nh l chui tin trnh v tc v

Gii thch li ch ca hng tng tin trong vic pht trin kdl

Xc nh cc k nng p ng cho vic thc thi kho d liu

280. Tin trnh

Phng thc

• Cc ti liu k thut, phn ra cc module

• Xc lp cc chun ha

• Ci tin phng thc phn phi cng vic

• nh ngha cc tc v v phn phi cng vic

Cc cng c phn mm v ti liu hng dn

Phng thc kho d liu

• Cc tc v v phn phi cng vic xy dng kho d liu v ci t

281. Phng thc

Da trn c s ca cng ngh phn mm

Ci tin bng :

• Nhn dng cc tc v lp

• nh ngha cc tc v mt cch nht qun

• Xc nh cc tiu chun m bo cht lng v s y ca d liu

• inh ngha vic qun l tc v

• Ti u ha cc tc v

282. Cc thnh phn

Nhm vo cc thnh phn :

• Thu thp d liu

• Siu d liu

• Thit k k thut cho kho d liu

• Truy cp d liu

• Cht lng d liu

• Khm ph

283. TI liu v cng c h tr

Workplan Templates

Deliverables Templates

Online Handbooks

Quick Tour

Method Handbook

Process and Task Reference

Deliverables Reference

Software Tools Handbooks 284. Phng php lun

Tp trung vo phm vi ca ng dng

Qun l c cc ri ro

Cn c vo cc ng gp ca ngi dng

Cung cp cc giI php c th m rng

S dng nhiu cng ngh khc nhau

Nhn dng cc tc v vi cc i tng v nh ngha r rng

a cc tc v vo trong cc tin trnh ,nhm tin trnh theo giai on

285. Cc li ch Consistency Productivity Experience & Best Practices Flexibility Risk Avoidance 286. Cc yu t cn bn

Cc tin trnh

Cc hng

Tc v v phn b tc v

Cc chc nng

Phase 1 Phase 2 Phase 3 Phase 1 Task1 Phase 1 Task2 Phase 1 Task3 Phase 3 Task1 Phase 3 Task2 Phase 3 Task3 Phase 2 Task1 Phase 2 Task2 Phase 2 Task3 Process 1 Process 2 287. Cc tin trnh

Tp kt dnh cc tc v thc hin cc mc tiu

Tp cc k nng chung

D n c th chuyn giao

a s l trng lp ,mt s th l thuc vo tin trnh trc

288. Cc tin trnh Business Requirements Definition Data Acquisition Data Quality Warehouse Administration Metadata Management Data Access Database Design and Build Documentation Testing Training Transition Post-Implementation Support Architecture 289. nh ngha cc yu cu kinh doanh

nh ngha cc yu cu

Phn lp cc vng

Khi to cc k hoch ci t

Cung cp s khi u tp trung vo vic tin hnh xy dng h thng cho cng ty

Xc nh cc yu cu v thng tin

Cc yu cu v m hnh

290. Thu thp d liu

Xc nh ,chit ,chuyn i ,v chuyn ti d liu ngun

Xem xt d liu bn trong v bn ngoi

Chuyn di d liu gia ngun v ch

Thc hin phn tch kt ni gia d liu ngun v cc i tng csdl ch

nh ngha vic thu thp ln u v k hoch lm ti d liu

nh ngha cc yu cu v cng c

Xy dng ,test ,v thc hin cc module np d liu

291. Kin trc

nh r cc nn tng k thut

Thit k kin trc kho d liu

Tch hp cc thnh phn kin trc cho mc ch kh bin v mm do

Xc nh mi trng CSDL ,phn tn hay tp trung

nh ngha cc mi trng pht trin ,test ,hun luyn ,v sn xut

Cu hnh nn Configure the platform

Thc hin vic tnh dung lng CSDL

Xem xt vic lm sch a

292. Cht lng ca d liu

m bo tnh nht qun ,ng tin cy v chnh xc ca d liu

Pht trin mt chin lc :

• Lm sch d liu

• Cc chc nng m bo tnh ton vn ca d liu

• Cc chc nng qun l cht lng ca d liu

Xc nh cc lut kinh doanh :

• Lm sch d liu

• X l cc li

Cc yu cu cho vic to ra cc cng c kim tra cht lng ca d liu

Xy dng ,test ,v thc hin cc module cho vic to v kim chng cht lng d liu

293. Bo tr kho d liu

nh r mt chin lc bo tr kho d liu

• Qun l cu hnh

• Qun l kho d liu

• S qun l v chi phi d liu

nh ngha dng cng vic qun l kdl v cc yu cu v cng c

Xy dng ,test ,v thc hin cc module cho vic bo tr kho d liu

Qun l vic truy cp d liu v gim st

T ng ha cc tc v qun l kdl

294. Cc loi siu d liu

nh ngha chin lc cho vic to v qun l siu d liu

nh ngha cc kiu siu d liu

Ch r cc yu cu cho lu tr siu d liu p ng cc yu cu qun l vic tch hp v truy cp

Khi to cc khung nhn k thut v kinh doanh cho siu d liu

Pht trin cc module cho vic nm bt ,kt ni v truy cp siu d liu

295. Truy cp d liu

Nhn din ,chn la v thit k cc cng c qun l vic truy cp ca ngi dng

nh ngha cc h s ca ngi dng

Xc nh cc yu cu ca kiu giao din ,cc cu trc cu hi ,cc bo co ,v cc loi ngi dng

c lc ,nh gi v ci t cc cng c qun l vic truy cp

Thit k v pht trin cc i tng truy cp d liu

• Cu hi v bo co

• Catalogs

• Chiu v cc phn cp

296. Thit k v xy dng cs d liu

H tr cc yu cu d liu

Thit k CSDL nhm mc ch cung cp cc truy cp c hiu qu

To v ph chun cc m hnh logic v vt l

To lp cc i tng CSDL quan h v a chiu

c lc cc phn on ,cc on ,v vic sp xp

Nhn din cc kha v ch mc

Xy dng v ci t cc i tng csdl

297. Lp ti liu

Cung cp cc vn bn c th cung cp cc thng tin :

• T in thut ng Glossary

• Ti liu cho ngi dng v ti liu k thut User and technical documentation

• Tr gip trc tuyn Online help

• Hng dn tham kho siu d liu

• Tham cu s qun l kdl

• Hng dn cc tnh nng mi

298. Test

Pht trin mt chin lc test h thng

To lp cc k hoch,kch bn cho vic test

Test tt c cc thnh phn

• Thu thp d liu

• Truy cp d liu

• Cc truy cp c bit

• Hi quy ,

• Cc volume

• Backup

• S khi phc Recovery

299. Hun luyn

nh ngha cc yu cu

• V k thut Technical

• Ca ngi dng cui End user

• Ca yu cu kinh doanh

Nhn din cc c nhn cho vic hun luyn

To lp khung thi gian cho vic hun luyn

Thit k v pht trin cc ti liu

Tp trung vo vic hun luyn s dng cc cng c h tr hot ng ca kho d liu

300. Chuyn giao

nh ngha cc tc v cho vic chuyn giao s dng kdl

Chuyn giao cc chc nng v module

Pht trin k hoch ci t

Chun b mi trng bo tr

Chun b mi trng cho vic s dng kho d liu

301. H tr hu thc thi

c lng v kho st vic s dng kdl

Gim st vic s dng kdl

Lm tI kdl

Gim st v phn hi cc vn xy ra

iu khin thc hin test

C trch nhim chuyn giao sn phm

c lng v kho st cc gii php thc thi

302. Cc hng thc thi

Incremental

Packaged data mart Warehouse Infrastructure Implementation Business Application Implementation IncrementI Proof of Concept Increment II through N Increment II through N Warehouse Data mart Data mart Data mart 303. Hng tng tin 304. Pht trin tng tin

Tp trung vo chc nng kinh doanh

a ra cc li ch trong kinh doanh

Xem th c ph hp cho vic tng trng ,tin ho ca kdl khng?

Khi mt tng tin hon thnh ,cc chn la v phm vi ca tng tin tip theo s c nh ngha

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 305. Chin lc

Tp trung vo cc kha cnh ca mt gii php kdl cho mt x nghip

Cung cp mt nn tng vng chc cho tng lai

Xc nh cc chin lc

• Thu thp d liu

• Qun l kdl

• Cht lng d liu

• Siu d liu

• Truy cp d liu

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 306. Cc nh ngha

Nhn din v khoanh vng cc tng tin

Ti liu ghi thng tin v cc ngun d liu

Pht trin cc k hoch np v lm ti d liu

Chun b mt kin trc k thut

nh ngha phm vi ca cht lng d liu

nh ngha cc chin lc qun l s tng tin ca kho d liu

nh ngha siu d liu ,truy cp ,v test v k hoch hun luyn

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 307. Phn tch

Thu thp cc yu cu v thng tin

Hon thnh cc m hnh kdl v a chiu

Trau chut k hoch thu thp d liu

nh x cc ngun d liu

Pht trin cc k hoch tch hp

Ti liu qun l cc li v cc ngoi l

nh gi v chn cc cng c

Lp cc bo co v vic truy cp cc yu cu v truy cp d liu

Phn tch cc k hoch test

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 308. Thit k

nh ngha cc chun ha trong thit k

nh x d liu ngun vp csdl logic

Pht trin cc module cho vic np v lm ti d liu trong kdl

Thit k cc k hoch cho vic ci t phn cng v phn mm

Thit k cc t t cho vic truy cp d liu

Khi to thit k csdl vt l

Pht trin v chun b cc nn test

Khi to cc ti liu hng dn ,tham kho v hun luyn ngi dng

Pht trin chin lc chuyn giao

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 309. Xy dng

nh x d liu ngun vo csdl vt l

M ha cc modules

Tch hp kin trc tng tin vi kin trc kinh doanh ca x nghip

Xy dng cc module qun l cht lng d liu

Xy dng cc module qun l siu d liu

Tin hnh test cc module v h thng

Hon thnh cc ti liu hng dn s dng v k thut

Pht trin k hoch ci t

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 310. Chuyn giao

S dng ,v phn b d liu

Hun luyn cho ngi dng v qun l h thng

iu chnh h thng csdl

Thc thi cc chc nng qun l kdl

Ch o ngi dng test h thng

Cung cp s c lng trong vic s dng

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 311. Khm ph

Kho st cc tng tin c th thc thi c

Kho st cc yu cu xut sc

Lp ti liu cho cc kinh nghim v cc bi hc

Kho st cc k hoch cho d n m

nh gin kin trc kdl v k thut kh thi

Strategy PGM/PJM Project andProgram Management ETA Enterprise Technical Architecture Definition Analysis Design Build Transition to Production Discovery Incremental Development 312. Cc tc v v s thc thi

c pht tho trong cu trc phn chia nh cng vic

c t chc theo tin trnh v giai on

Task Id Task Name A Strategy A.RD.EXEC Business Requirements Definition A.RD.001 Obtain Existing Reference Material A.RD.002 Obtain Reference Data Models A.RD.003 Define Strategic Goals, Vision of the Enterprise A.RD.004 Establish Business Initiatives A.RD.005 Define Objectives and Purpose of Enterprise Data Warehouse A.RD.015 Collect Enterprise Business Information Requirements A.RD.034 Document Data Warehouse Subject Areas A.RD.035 Create Data Warehouse Subject Area Data Model A.RD.044 Define Data WarehouseImplementation Roadmap A.RD.045 Prepare Business Case for Enterprise Data Warehouse 313. Cc tc v v s thc thi

The project team :chc nng v trch nhim

Cc chc nng chung

• Phn tch ,qun tr csdl ,lp trnh ,v test

• Cc chc nng c bit ca kdl

• Kin trc kdl ,kin trc siu d liu ,qun tr cht lng d liu ,qun tr kdl