tl 9000 quality management system measurements ...qfweb.questforum.org/japanhub/mhb r5.5...
TRANSCRIPT
Quality Excellence for Suppliers of
Telecommunications Forum
(QuEST Forum)
TL 9000
Quality Management System
Measurements Handbook
Release 5.5
Quality Excellence for Suppliers of
Telecommunications Forum
(QuEST Forum)
TL 9000
Quality Management System
Measurements Handbook
Release 5.5
TL 9000
å質ãããžã¡ã³ãã·ã¹ãã
枬å®æ³ãã³ãããã¯
ãªãªãŒã¹ 5.5
è±å察蚳ç
Copyright 2017 Quality Excellence for Suppliers of Telecommunications Forum
For information about the QuEST Forum,
visit the QuEST Forum website (questforum.org).
For TL 9000 specific information,
visit the TL 9000 website (tl9000.org).
TL 9000 is a registered trademark
of the
Quality Excellence for Suppliers of Telecommunications Forum.
Throughout this document the term âMeasurements Handbookâ refers to TL 9000 Quality Management System
Measurements Handbook, Release 5.5, namely this volume. The term âRequirements Handbookâ refers to the latest
version of the TL 9000 Quality Management System Requirements Handbook. The term âISO 9001â refers to
ISO 9001:2015.
Any errors identified after printing will be posted to the TL 9000 website. See the Measurements Handbook Errata link at
tl9000.org/links.html
This handbook is dedicated to Jennifer Simcox, in recognition of her many years of service both as an
individual contributor and as a dedicated leader of the IGQ workgroup.
This material replaces Sections 7.1 and 8.1 in the R5.0 TL 9000 Quality Management System Measurements
Handbook. It also adds Section 9.3. The combination of the existing unchanged material in the R5.0
Handbook along with the material herein constitutes the full R5.5 Handbook.
Approved and Adopted
by the
QuEST Forum
Effective
30 June 2017
Copyright © 2017 Quality Excellence for Suppliers of Telecommunications Forum
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å°å·åŸã«å€æãããã¹ãŠã®ééã㯠TL 9000 website ã«æ²ç€ºããŠãããtl9000.org/links.html ã«ãã枬
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æ¬ãã³ãããã¯ã¯ãå人ã®è²¢ç®è ãšããŠåã³ IGQ äœæ¥ã°ã«ãŒãã®å°ä»»ãªãŒããšããŠã® Jennifer Simcox
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æ¬æžã¯ãTL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.0 ã«ãããã»ã¯ã·ã§ã³ 7.1 åã³ 8.1
ã眮ãæããããŸããã»ã¯ã·ã§ã³ 9.3 ãè¿œå ããããã®éšåãšãå€æŽã®ãªãçŸåšã® R5.0 ãã³ãããã¯ãš
ã®çµã¿åããã§ãå š R5.5 ãã³ãããã¯ãæ§æããã
Approved and Adopted
by the
QuEST Forum
Effective
30 June 2017
Section 7 â Hardware Measurements
ã»ã¯ã·ã§ã³ 7 â ããŒããŠã§ã¢æž¬å®æ³
Section 7 Hardware Measurements
7.0 Return Rates
7.0.1 Purpose
This section contains return rate measurements for two types of products:
1) products whose reliability is tracked throughout their life cycle.
2) products where returns or requests for replacements can only be tracked during the initial
usage of the product.
7.1 Field Replaceable Unit Returns (FR)
7.1.1 General Description and Title
FR is comprised of three return rate measurements that cover the full life cycle of a product.
These are:
1) Early Return Index (ERI) â a measure of the returns of units during the first six months after
initial shipment. This is not a true return rate; see note in 7.1.3 below.
2) One-Year Return Rate (YRR) â return rate of units shipped seven to eighteen months prior to
the reporting month.
3) Long-Term Return Rate (LTR) â return rate of units shipped nineteen or more months prior to
the reporting month.
7.1.2 Purpose
The measurement
â provides a quantification of the quality of the product as initially received by all customers
including equipment manufacturers and/or end-customers, and during subsequent
in-service operations,
â determines areas needing corrective action or most likely benefiting from continual
improvement activity, and
â provides input data needed to calculate equipment life cycle costs.
7.1.3 Applicable Product Categories
This measurement applies to product categories as shown in the Measurement Applicability
Table (Normalization Units), Appendix A, Table A-2. In general, these measurements apply to
â any system comprised of field replaceable units (FRUs),
â a system which is a FRU, or
â the individual FRUs.
The FR measurements apply to equipment whose reliability needs to be tracked throughout its
entire life cycle. These measurements apply equally to any FRU shipped either in a system or
separately. These measurements are not intended for items shipped in bulk such as
ã»ã¯ã·ã§ã³ 7 ããŒããŠã§ã¢ã®æž¬å®æ³
7.0 è¿åç
7.0.1 ç®ç
ãã®ã»ã¯ã·ã§ã³ã§ã¯ïŒ2 ã€ã®ã¿ã€ãã®è£œåã«å¯Ÿããè¿åçã®æž¬å®æ³ãå«ãã§ããã
1) 補åã®ã©ã€ããµã€ã¯ã«ãéããŠä¿¡é Œæ§ã远跡ããã補å
2) 補åã®æåã®äœ¿çšæã«ã®ã¿è¿åãããã¯äº€æèŠæ±ã远跡ã§ãã補å
7.1 åæ¿ãå¯èœãŠãããã®è¿åïŒFRïŒ
7.1.1 äžè¬
FR ã¯ïŒè£œåã®ã©ã€ããµã€ã¯ã«å šäœãã«ããŒããäžã€ã®è¿åç枬å®æ³ã§æ§æãããã
1) æ©æè¿åææšïŒERIïŒïŒ åååºè·åŸ 6 ã¶æéã«åºè·ããããŠãããã®è¿åã®æž¬å®ãããã¯çã®è¿åçã§ã¯ãªããäžèš 7.1.3 ã®æ³šèšãåç §ã®ããšã
2) 幎éè¿åçïŒYRRïŒïŒ å ±åæã® 7 ã¶æãã 18 ã¶æåã«åºè·ããããŠãããã®è¿åçã
3) é·æè¿åçïŒLTRïŒïŒ å ±åæã® 19 ã¶æåã¯ãã以åã«åºè·ããããŠãããã®è¿åçã
7.1.2 ç®ç
ãã®æž¬å®é ç®ã¯ïŒ
ïŒ è£ çœ®è£œé æ¥è åã³/åã¯æçµé¡§å®¢ãå«ããã¹ãŠã®é¡§å®¢ãïŒæåã«åé ãã補ååã³ãã®åŸã®ãµãŒãã¹éçšæéäžã®è£œåå質ã®å®éåãæäŸããã
ïŒ æ¯æ£åŠçœ®ãå¿ èŠãšããåã¯ç¶ç¶çæ¹å掻åã«ãã£ãŠæãæ©æµãåŸãããããªéšåã決å®ããã
ïŒ è£ çœ®ã®ã©ã€ããµã€ã¯ã«ã³ã¹ããèšç®ããããã«å¿ èŠãªå ¥åããŒã¿ãæäŸããã
7.1.3 é©çšãã補ååé¡
ãã®æž¬å®é ç®ã¯ïŒéå±æž A ã®è¡š A-2ïŒæž¬å®æ³é©çšè¡šïŒèŠæºååäœïŒã«ç€ºããã補ååé¡ã«é©çšãããäžè¬çã«ã¯ïŒãããã®æž¬å®é ç®ã¯ïŒæ¬¡ã®äºé ã«é©çšããã
ïŒ åæ¿ãå¯èœãŠãããïŒFRUïŒã§æ§æããŠããããããã·ã¹ãã
ïŒ FRU ã§ããã·ã¹ãã
ïŒ FRU åäœãã®ãã®
FR 枬å®æ³ã¯ïŒãã®ã©ã€ããµã€ã¯ã«å šäœãéããŠä¿¡é Œæ§ã远跡ãããããšãå¿ èŠãªè£ 眮ã«é©çšããããããã®æž¬å®é ç®ã¯ïŒã·ã¹ãã ã«çµã¿èŸŒãŸããŠåºè·ãã FRUïŒ åã¯å¥ã«åºè·ãã FRU ã®ã©ã¡ãã§ãåãããã«é©çšããããããã®æž¬å®é ç®ã¯ïŒãã«ã¯ã§åºè·ãããåç®ãæå³ããŠããªããäŸãã°ïŒæ¬¡ã®ãã®ãããã
TL 9000 Quality Management System Measurements Handbook R5.5
7-3
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
7-3
Section 7 â Hardware Measurements ã»ã¯ã·ã§ã³ 7 â ããŒããŠã§ã¢æž¬å®æ³
â cable and optical fiber, or
â mechanical hardware such as metallic connectors, optical connectors, conduit, mounting
hardware, labels, etc.
NOTE: The Early Return Index is used as a surrogate for the installation reject rate, including
Dead On Arrivals (DOAs), because the quantity of units shipped is known whereas the number
of units actually installed is not readily determined. The Early Return Index measurement for
items warehoused outside of the organizationâs control for an extended period before placement
in service may not accurately reflect the actual returns for product in service. This may also be
true of items sold through distributors.
NOTE: Early in a product's life, when shipments are low, the ERI may be unstable
month-to-month and higher due to any returns against small volumes. This may also occur as
the product matures and shipments begin to decline.
NOTE: Long-Term Return Rates may become inaccurate for older products as units are taken
out of service without the knowledge of the organization.
NOTE: The return rate for low cost items after the expiration of any warranty period is likely to be
inaccurate if purchasing a new item is no more expensive than repairing the failed one.
7.1.4 Detailed Descriptions
a) Terminology
The Glossary includes definitions for
â Afactor (Annualization Factor)
â Basis Shipping Period
â Field Replaceable Unit
â Return
b) Counting Rules
The following rules shall apply when counting returns and shipments for the return rate
measurements:
1) All returns except as noted in 7.1.4 c), Counting Rule Exclusions, are counted.
2) Only returns from the basis shipping period corresponding to the specific measurement
shall be counted.
3) Customer returns are counted when received by the selling organization or third-party
repair/logistics agency.
4) The organization shall document the method of determining which of the returns are
from which of the corresponding original basis shipping period. This determination shall
be based on the initial shipment to the field of the individual returned unit. This may be
determined by
â serialized shipment records of the returned unit,
â shipment or warranty start date code marked on the unit,
â shipment date associated with a customer order, or
â manufactured date associated with a lot number.
NOTE: The last method requires the determination of an accounting for a standard time
delay between the date of manufacture and shipment.
5) Units that fail due to a problem corrected by a recall before they can be rotated are
counted as returns.
ïŒ ã±ãŒãã«åã³å ãã¡ã€ã
ïŒ æ©æ¢°çããŒããŠã§ã¢ïŒäŸãã°ïŒã¡ã¿ãªãã¯ã³ãã¯ã¿ïŒå ã³ãã¯ã¿ïŒå°ç®¡ïŒä¿æ¢çšéå ·ïŒã©ãã«ãªã©
泚èšïŒæ©æè¿åææšã¯ïŒåºè·æ°ã¯ãããã®ã«å¯ŸããŠå®éã«æ®ãä»ãããããŠãããæ°ã¯å®¹æã«ã¯ããããªãã®ã§ïŒæ®ä»ãäžè¯çã«ä»£ããææšãšããŠäœ¿çšããããããã«ã¯å°çæäžè¯ïŒDOAïŒãå«ãã§ãããçµç¹ã®ç®¡çå€ã®å庫ã«ïŒãµãŒãã¹ã«äŸãããŸã§é·ãéä¿ç®¡ããŠããåç®ã«å¯Ÿããåæè¿åç枬å®å€ã¯ïŒãµãŒãã¹éçšäžã®è£œåã®ïŒå®éã®è¿åçãæ£ç¢ºã«åæ ããªãããšãããããŸãïŒè²©å£²ä»£çåºãéããŠè²©å£²ãããåç®ã®å Žåã«ãïŒãã®ããšãåœãŠã¯ãŸãããšãããã
泚èšïŒåºè·æ°ãå€ããªãïŒè£œå寿åœã®åæã«ãããŠå°éã®åºè·æ°ã«å¯Ÿããè¿åæ°ã®åœ±é¿ã§ïŒERI ã¯æããšã®æšç§»ãäžå®å®ã«ãªãïŒãŸãé«ããªããããã¯ïŒè£œåãå®å®ãïŒåºè·æ°ãæžå°ãå§ããæã«èµ·ããããšãããã 泚èšïŒé·æè¿åçã¯ïŒå€ã補åã«ã€ããŠã¯ïŒãŠããããçµç¹ã®æ°ä»ããªããã¡ã«ãµãŒãã¹åæ¢ãšãªãããšãããã®ã§æ£ç¢ºã§ã¯ãªãããšãããã 泚èšïŒä¿èšŒæéãåããäœäŸ¡æ Œåç®ã®è¿åçã¯ïŒæ°ããåç®ãè³Œå ¥ããã»ããæ éãããã®ãä¿®çãããããå®ãå Žåã«ã¯ïŒæ£ç¢ºæ§ãæ¬ ãããšãå€ãã 7.1.4 詳现説æ
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1) 7.1.4 c)ãèšæ°ã«ãŒã«ã®é€å€ãã«ç€ºããã®ãé€ãããã¹ãŠã®è¿åãèšæ°ããã
2) ç¹å®ã®æž¬å®ã«å¯Ÿå¿ããåºæºåºè·æéã§ã®è¿åã ããèšæ°ããã
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5) ååã«ãã£ãŠæ¯æ£ãããã¹ãåé¡ãšåäžåå ã§æ éãããŠãããã®æ éã§ïŒåå亀æåã«çºçãããã®ã¯ïŒè¿åãšããŠèšæ°ããã
TL 9000 Quality Management System Measurements Handbook R5.5
7-2
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
7-2
Section 7 â Hardware Measurements ã»ã¯ã·ã§ã³ 7 â ããŒããŠã§ã¢æž¬å®æ³
6) Units damaged during normal shipping or handling where the container is not damaged
due to abnormal shipping conditions are counted as returns.
7) No trouble found units, that is, returned units determined by the organization to meet its
specifications, are counted as returns.
8) The date of original shipment to the end customer shall be used for determining the
basis shipping period.
9) Returns and shipments should only be reported once when submitting data to the
TL 9000 Administrator. When a unit is used in more than one product and those products
span multiple product categories, it may not be practical or possible to identify with which
product, and therefore which product category, a return or shipment is associated. In
such cases, the organization should, if possible, apportion the returns and shipments
appropriately among all product categories in which the unit is used. If accurate
apportioning is not possible, the organization may apply all the data for that unit to the
most appropriate product category.
10) If a returned product contains multiple FRUs, each individual FRU shall be counted
separately.
c) Counting Rule Exclusions
Exclude from the return and shipment counts:
1) working or untested units returned as part of a formal rotation or recall program,
2) units damaged during shipping or while in service due to vehicular accidents, water
leakage, electrical spikes outside of specified limits, misuse by the end user, or other
environmental factors outside those conditions for which the equipment was designed,
3) items that were ordered in error, ordered in excess, consignment items, or canceled
orders,
4) returns from laboratory systems or First Office Application (FOA) systems,
5) units returned voluntarily by the customer to install modifications to obtain optional
features or functionality or to reconfigure the unit for another use, such as a change in
operating frequency,
6) units that have been permanently removed from service by the customer, and
7) shipments to customers for products where
â defective units are not returned for repair by the customer or
â units are repaired by a third party or the customer and the return data is not made
available after solicitation by the organization.
d) Calculations and Formulas
1) The FR measurements are annualized and shall be calculated monthly as shown in
Table 7.1-2.
2) Early Return Index (ERI) â The ERI in month n measures the rate of return of product
during months n-6 through n-1. In addition to returns from months n-6 through n-1,
returns from units shipped during the current month (n) are also included. This basis
shipping period is assumed to represent the rate of return of the product during
installation, turn-up, and testing. Any shipments in the month are deliberately excluded
as only a few units are actually put into use during the month they are shipped.
6) ã³ã³ãããç°åžžãªåºè·æ¡ä»¶ã§æå·ãåããŠããªãéãïŒéåžžã®åºè·åæ±ãäžã«æå·ãåãããŠãããã¯
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d) èšç®åŒ
1) FR è¿åã®æž¬å®ã¯ïŒè¡š 7.1-2 ã«åŸã£ãŠæ¯æèšç®ãïŒå¹Žçã«æç®ããªããã°ãªããªãã
2) æ©æè¿åææšïŒERIïŒâæ n ã® ERI ã¯ïŒæ n-6 ããæ n-1 ãŸã§ã®è¿åçã枬å®ãããæ n-6 ããæ n-1 ãŸ
ã§ã®è¿åã«å ããŠåœæã«åºè·ããããŠãããããã®è¿å(n)ãå«ãããã®åºæºåºè·æéã¯ïŒã€ã³ã¹ããŒã«ïŒ
ç«äžãïŒè©Šéšæéäžã®è£œåã®è¿åçãè¡šãããšèãããããåºè·ãããæã«å®éã«äœ¿çšããããŠããã
ã¯ã»ãã®å ããªã®ã§ïŒãã®æã®åºè·ãæå³çã«é€å€ããã
TL 9000 Quality Management System Measurements Handbook R5.5
7-3
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
7-3
Section 7 â Hardware Measurements ã»ã¯ã·ã§ã³ 7 â ããŒããŠã§ã¢æž¬å®æ³
3) One-Year Return Rate (YRR) â The YRR measures the rate of return of product shipped
seven to eighteen months prior to the reporting month. It is based on the number of
returns during the month from the population of units shipped seven to eighteen months
prior to the month. This basis shipping period is assumed to represent the operation
during the early life period.
4) Long-Term Return Rate (LTR) â The LTR measures the rate of return of product shipped
nineteen or more months prior to the reporting month. It is based on the number of
returns during the month from the population of units shipped more than eighteen
months prior to the month. This rate represents the mature return rate of the product.
Table 7.1-1 FR Notation
Identifier Definition
NU Normalization Unit (NU) from the Measurement Applicability
Table (Normalization Units), Appendix A, Table A-2
Afactor Number of calculation periods in a year
FRri Number of returns from the ERI basis shipping period
FRry Number of returns from the YRR basis shipping period
FRrt Number of returns from the LTR basis shipping period
FRsi Number of FRUs shipped during the ERI basis shipping period
FRsy Number of FRUs shipped during the YRR basis shipping period
FRst Number of FRUs shipped during the LTR basis shipping period
Table 7.1-2 FR Measurement Identifiers and Formulas
Identifier Title Formula Note
ERI Early return index 100 x Afactor x (FRri / FRsi) % per year
YRR One-year return rate 100 x Afactor x (FRry / FRsy) % per year
LTR Long-term return rate 100 x Afactor x (FRrt / FRst) % per year
e) Reported Data and Format
1) Monthly data shall be reported per the frequency and method noted in Sections 3.5.2
and 4.2.2 of this document.
2) The FR measurement shall be reported for each month and each product category with
data elements, or equivalent as defined by the TL 9000 Administrator, shown in
Table 7.1-3.
Table 7.1-3 FR Data Table
Identifier Value
MeasurementID FR
Fra Afactor
FRri Number of returns from the ERI basis shipping period
FRry Number of returns from the YRR basis shipping period
FRrt Number of returns from the LTR basis shipping period
FRsi Number of FRUs shipped during the ERI basis shipping period
FRsy Number of FRUs shipped during the YRR basis shipping period
FRst Number of FRUs shipped during the LTR basis shipping period
3) 幎éè¿åçïŒYRRïŒâYRR ã¯ïŒå ±åæã® 7 ã¶æãã 18 ã¶æåã«åºè·ããã補åã®è¿åçã枬å®ããã
ããã¯ïŒãã®æãããã®ãŒãããš 7 ã¶æãã 18 ã¶æãŸã§ã«åºè·ããããŠãããæ¯éå£ããã®ïŒãã®æã®
è¿åæ°ã«åºã¥ãããã®åºæºåºè·æéã¯ïŒåæ皌åæéäžã®éçšãè¡šãããšèããããã
4) é·æè¿åçïŒLTRïŒâLTR ã¯ïŒå ±åæã® 19 ã¶æåã¯ãã以åã«åºè·ããã補åã®è¿åçã枬å®ãããã
ãã¯ïŒãã®æãããã®ãŒãããš 18 ã¶æãè¶ ããŠããïŒåºè·æ¯éå£ããã®ãã®æã®è¿åæ°ã«åºã¥ããŠããã
ãã®çã¯ïŒè£œåã®å®å®æè¿åçãè¡šãããŠããã
è¡š 7.1-1 FR èšæ³
èå¥å å®çŸ©
NU éå±æž A ã®è¡š A-2ïŒæž¬å®æ³é©çšè¡šïŒèŠæºååäœïŒããã®èŠæºååäœïŒNUïŒ
Afactor 幎éã®å ±ååäœæéã®æ°ïŒçšèªè§£èª¬ãåç §ïŒ
FRri ERI åºæºåºè·æéã®è¿åæ°
FRry YRR åºæºåºè·æéã®è¿åæ°
FRrt LTR åºæºåºè·æéã®è¿åæ°
FRsi ERI åºæºåºè·æéã«åºè·ãã FRU ã®æ°
FRsy YRR åºæºåºè·æéã«åºè·ãã FRU ã®æ°
FRst LTR åºæºåºè·æéã«åºè·ãã FRU ã®æ°
è¡š 7.1-2 FR 枬å®æ³èå¥ååã³èšç®åŒ
èå¥å å称 èšç®åŒ 泚èš
ERI æ©æè¿åææš 100 à Afactor à (FRri/FRsi) %/幎
YRR 幎éè¿åç 100 à Afactor à (FRry/FRsy) %/幎
LTR é·æè¿åç 100 à Afactor à (FRrt/FRst) %/幎
e) å ±åããŒã¿åã³æ§åŒ
1) æ次ããŒã¿ã¯ïŒæ¬æžã®ã»ã¯ã·ã§ã³ 3.5.2 åã³ 4.2.2 ã«èšèŒãããé »åºŠãšæ¹æ³ã§å ±åããªããã°ãªããªãã
2) FR è¿åã®æž¬å®ã¯ïŒæ¯æïŒè£œååé¡ããšã«ïŒããŒã¿èŠçŽ å㯠TL 9000 管çè ã«ãã£ãŠèŠå®ãããåçã®ãã®ã§å ±åããªããã°ãªããªãïŒè¡š 7.1-3 åç §ïŒã
è¡š 7.1-3 FR ããŒã¿è¡š
èå¥å å€
Measurement ID FR
FRa Afactor
FRri ERI åºæºåºè·æéã®è¿åæ°
FRry YRR åºæºåºè·æéã®è¿åæ°
FRrt LTR åºæºåºè·æéã®è¿åæ°
FRsi ERI åºæºåºè·æéã«åºè·ãã FRU ã®æ°
FRsy YRR åºæºåºè·æéã«åºè·ãã FRU ã®æ°
FRst LTR åºæºåºè·æéã«åºè·ãã FRU ã®æ°
TL 9000 Quality Management System Measurements Handbook R5.5
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TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
7-4
Section 7 â Hardware Measurements ã»ã¯ã·ã§ã³ 7 â ããŒããŠã§ã¢æž¬å®æ³
7.1.5 Sources of Data
As a part of its data systems, the organization should have available the information listed above
needed to calculate these measurements. This includes:
a) FRU shipping records â These are required to determine which units received for repair are
early returns, one-year returns, or long-term returns and to determine the respective
populations.
b) FRU return records â The organizationâs return records shall include the identifiers
necessary to match returns with shipment records.
c) Third-party return records â Units returned to a third-party repair agency by the customer or
repaired by the customer itself shall be included in the return counts when available. To have
accurate measurements, it is necessary for the customer to include a contractual
requirement of their third-party repair agencies to supply this data to the original equipment
manufacturers.
7.1.6 Examples
Examples for applying the FR measurement are located on the TL 9000 website
(tl9000.org/links.html).
7.1.5 ããŒã¿çºçæº
ããŒã¿ã·ã¹ãã ã®äžéšãšããŠïŒ çµç¹ã¯ïŒåè¿°ãããããã®æž¬å®å€ãèšç®ããããã«å¿ èŠãªæ å ±ãçšæããŠããããšãæãŸãããããã«ã¯æ¬¡ã®æ å ±ãå«ãã
a) FRU åºè·èšé²âãã®èšé²ã¯ïŒä¿®çã®ããã«åãåã£ããŠãããã«ã€ããŠïŒãæ©æè¿åãïŒã幎éè¿åãåã¯ãé·æè¿åãã®ããããã決ããããïŒåã³ããããã®æ¯éå£ã®æ°ã決ããããã«å¿ èŠã§ããã
b) FRU è¿åèšé²âçµç¹ã®è¿åèšé²ã«ã¯ïŒè¿åãåºè·èšé²ãšç §åããããã«å¿ èŠãªèå¥åãå«ããªããã°ãªããªãã
c) 第äžè è¿åèšé²â第äžè ã®ä¿®ç代çåºã«é¡§å®¢ãè¿åãããŠãããåã¯é¡§å®¢èªèº«ãä¿®çãããŠãããã¯ïŒå¯èœãªå Žåã«ã¯è¿åã®èšæ°ã«å«ãŸãªããã°ãªããªããæ£ç¢ºãªæž¬å®å€ãåŸãããã«ã¯ïŒé¡§å®¢ããã®ç¬¬äžè ã®ä¿®ç代çåºã«ïŒãã®ããŒã¿ããã®æ©åšã® OEM å ã«æäŸããããã«å¥çŽæ¡ä»¶ã«å«ããå¿ èŠãããã
7.1.6 äºäŸ
FR枬å®æ³ã®é©çšäºäŸã¯ïŒTL 9000ãŠã§ããµã€ãïŒtl9000.org/links.htmlïŒã«ç€ºãã
TL 9000 Quality Management System Measurements Handbook R5.5
7-5
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
7-5
Section 8 â Software Measurements ã»ã¯ã·ã§ã³ 8 â ãœãããŠã§ã¢æž¬å®æ³
Section 8 Software Measurements
8.0.1 Purpose
Software measurements track
â the effectiveness of an organizationâs software fix process by measuring the ratio of
defective fixes to the number of fixes delivered, and
â the maintenance effort associated with the deployed software by measuring the incidence of
customer found software problems associated with the products developed by the
organization.
The measurements in this section are provided to aid the customer and the organization in
understanding the quality of software releases, the quality of software fixes, the efforts involved
in the installation and maintenance of the software release, and the risk of introducing a software
fault, for example, a defective fix, into their network. For the purpose of these measurements,
maintenance covers the activities to correct defects to the generally available release.
The treatment of firmware for use in software measurements is based on how the firmware is
maintained in the field. If the firmware can be changed by means of a download, and without
returning to the factory/repair facility for such download, then the firmware is to be treated as
software and all applicable software measurements apply. If changes require
rotation/replacement of hardware, specialized equipment for field installation of the new
firmware, or a return to factory/supplier/repair facility, the firmware is treated as hardware for the
purposes of software measurements and the software measurements do not apply. Please note
the above has no bearing on the applicability of any requirement in the TL 9000 Quality
Management System Requirements Handbook [5]
applicable to the process used to develop the
firmware.
8.1 Software Fix Quality Measurement (SFQ)
8.1.1 General Description and Title
The Software Fix Quality (SFQ) measurement is used to assess the effectiveness of an
organizationâs software fix processes.
This measurement is used to evaluate the defective fix percentage with a goal of minimizing
customer risk of failure when introducing fixes to an in-service software release.
8.1.2 Purpose
Software Fix Quality is the percentage of software fixes that are determined to be defective.
Customers are concerned with the quality of the software fixes and the number of changes the
organization makes during the product lifecycle. Software Fix Quality quantifies the rate at which
fixes are found defective during their initial 12 months of deployment.
8.1.3 Applicable Product Categories
This measurement applies to product categories as indicated in Measurement Applicability
Table (Normalization Units), Appendix A, Table A-2.
ã»ã¯ã·ã§ã³ 8 ãœãããŠã§ã¢ã®æž¬å®æ³
8.0.1 ç®ç
ãœãããŠã§ã¢ã®æž¬å®æ³ã¯ïŒä»¥äžã远跡ããã
ïŒ æäŸãããåé¡åŠçœ®ã®æ°ãšæ¬ é¥ã«å¯Ÿããåé¡åŠçœ®ã®æ¯çã®æž¬å®ã«ããïŒçµç¹ã®ãœãããŠã§ã¢åé¡åŠçœ®ã
ãã»ã¹ã®å¹æ
ïŒ çµç¹ã«ãã£ãŠéçºããã補åã«é¢é£ããïŒé¡§å®¢ãçºèŠãããœãããŠã§ã¢åé¡ã®äºäŸã枬å®ããããšã«ã
ã£ãŠïŒå±éããããœãããŠã§ã¢ã«é¢é£ããä¿å®ã®ææã
ãã®ã»ã¯ã·ã§ã³ã«ããã枬å®æ³ã¯ïŒãããã¯ãŒã¯ãžã®ãœãããŠã§ã¢ãªãªãŒã¹ã®å質ïŒãœãããŠã§ã¢åé¡åŠçœ®
ã®å質ïŒãœãããŠã§ã¢ãªãªãŒã¹ã®ã€ã³ã¹ãã¬ãŒã·ã§ã³åã³ä¿å®ã«é¢ããææïŒåã³ãœãããŠã§ã¢åé¡ãåŒãèµ·
ãããªã¹ã¯ïŒäŸãã°æ¬ é¥ã«å¯Ÿããåé¡åŠçœ®ïŒã顧客åã³çµç¹ãç解ããæå©ããšãªãããã«æäŸãããããã
ã枬å®æ³ã®ç®çã®ããã«ïŒä¿å®ã«ã¯äžè¬çã«éçšå¯èœãªãªãªãŒã¹ã§æ¬ é¥ãä¿®æ£ãã掻åãå«ãã
ãœãããŠã§ã¢æž¬å®æ³ã§äœ¿çšãããã¡ãŒã ãŠã§ã¢ã®åæ±ãã¯ïŒãã£ãŒã«ãã§ãã¡ãŒã ãŠã§ã¢ãã©ã®ããã«ç¶æ
ãããŠãããã«åºã¥ããŠãããããïŒããŠã³ããŒãã®ããã«å·¥å ŽïŒä¿®çã®æœèšã«è¿åãããããšãªããã¡ãŒã
ãŠã§ã¢ãããŠã³ããŒãã«ãã£ãŠå€æŽãããããšãå¯èœã§ããå Žåã¯ïŒãã¡ãŒã ãŠã§ã¢ã¯ãœãããŠã§ã¢ãšããŠå
ãæ±ããïŒãã¹ãŠã®é©çšå¯èœãªãœãããŠã§ã¢æž¬å®æ³ãé©çšããããããŒããŠã§ã¢ã®äº€æ/å ¥ãæ¿ãïŒæ°ãããã¡
ãŒã ãŠã§ã¢ã®ãã£ãŒã«ãã§ã®ã€ã³ã¹ãã¬ãŒã·ã§ã³ã®ããã®ç¹å¥ãªæ©åšïŒåã¯å·¥å ŽïŒäŸçµŠè ïŒä¿®çã®æœèšãžã®è¿
åã«ããå€æŽãå¿ èŠãªå ŽåïŒãã®ãã¡ãŒã ãŠã§ã¢ã¯ïŒãœãããŠã§ã¢æž¬å®æ³ã®ç®çããããŒããŠã§ã¢ãšããŠåã
æ±ããïŒãããããœãããŠã§ã¢æž¬å®æ³ã¯é©çšãããªãããããã¯ïŒãã¡ãŒã ãŠã§ã¢éçºã«äœ¿çšãããããã»ã¹
ã«å¯ŸããŠé©çšå¯èœãª TL 9000 å質ãããžã¡ã³ãã·ã¹ãã èŠæ±äºé ãã³ãããã¯[5]ã®ããããèŠæ±äºé ã®é©çš
æ§ãšã¯é¢ä¿ããªãããšã«æ³šæããããšã
8.1 ãœãããŠã§ã¢åé¡åŠçœ®å質枬å®æ³ïŒSFQïŒ
8.1.1 äžè¬
ãœãããŠã§ã¢åé¡åŠçœ®å質ïŒSFQïŒã®æž¬å®ã¯ïŒçµç¹ã®ãœãããŠã§ã¢åé¡åŠçœ®ããã»ã¹ã®å¹æãè©äŸ¡ãããã
ã«äœ¿çšããã
ãã®æž¬å®é ç®ã¯ïŒãµãŒãã¹éçšäžã®ãœãããŠã§ã¢ãªãªãŒã¹ã«å¯ŸããŠåé¡åŠçœ®ãå®æœããæã«ïŒãã®å€±æã«ã
ã顧客ã®ãªã¹ã¯ãæå°éã«ããããšãç®çã«ïŒæ¬ é¥ã«å¯Ÿããåé¡åŠçœ®ã®å²åãè©äŸ¡ãããã䜿çšããã
8.1.2 ç®ç
ãœãããŠã§ã¢åé¡åŠçœ®å質ã¯ïŒæ¬ é¥ãšæ±ºå®ããããœãããŠã§ã¢åé¡åŠçœ®ã®å²åã§ããã顧客ã¯ïŒãœãããŠã§
ã¢åé¡åŠçœ®ã®å質åã³çµç¹ã補åã©ã€ããµã€ã¯ã«ã®éã«äœåãœãããŠã§ã¢å€æŽãè¡ããã«é¢å¿ã瀺ããŠããã
ãœãããŠã§ã¢åé¡åŠçœ®å質ã¯ããã®å°å ¥ã®æåã® 12 ã±æéã«æ¬ é¥ãçºèŠãããåé¡åŠçœ®ã®å²åãæ°éåããã
8.1.3 é©çšãã補ååé¡
ãã®æž¬å®é ç®ã¯ïŒéå±æž A ã®è¡š A-2ïŒæž¬å®æ³é©çšè¡šïŒèŠæºååäœïŒã«ç€ºããã補ååé¡ã«é©çšããã
TL 9000 Quality Management System Measurements Handbook R5.5
8-1
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
8-1
Section 8 â Software Measurements ã»ã¯ã·ã§ã³ 8 â ãœãããŠã§ã¢æž¬å®æ³
8.1.4 Detailed Description
a) Terminology
The Glossary includes definitions for
â Afactor (Annualization Factor)
â General Availability Phase
â Official Fix
â Retirement Phase
â Software Fix
b) Counting Rules
1) Each individual fix delivered through software shall be counted whether delivered
individually or in a package.
2) Fixes to correct defects found in any generally available software release, whether found
internally or externally in a production or test environment, are counted.
3) When fixes are packaged together, only the fixes that are identified as defective shall be
counted as defective.
4) Each individual fix is counted once regardless of the number of times that fix is replicated
across machines/processors at customer site(s).
5) If several separate fixes are provided to affect a single change, such as covering
different parts of the code, and these fixes are separately identifiable to the customer,
they shall each be counted separately.
6) Fixes addressing the same or similar defects across multiple releases are counted
separately.
7) A fix is counted on General Availability of the fix. For example, fixes are counted when
â on-site and ready for system installation,
â available for downloading by the customer to the site, or
â shipped to the customer.
8) A defective fix meets one or more of the following criteria:
â Within the first 12 months of the fix release date:
o the fix cannot be installed or
o the fix does not correct the intended problem or
o the fix is withdrawn because of a potential or actual problem with the
intended fix.
â Within the first 6 months of fix release date, there is a critical or major problem that is
a side effect found to be attributable to the fix.
9) A defective fix shall be counted in the month during which the fix was found defective by
the organization.
c) Counting Rule Exclusions
1) Fixes associated with problems found in software that is not yet available in any
generally available release are not counted.
2) If a fix is found to be defective later than 12 months after its release date then it shall
not be counted as a defective fix.
d) Calculations and Formulas
1) The SFQ measurement is calculated monthly as shown in Table 8.1-2.
8.1.4 詳现説æ
a) çšèª çšèªè§£èª¬ã«ã¯ïŒæ¬¡ã®çšèªã®å®çŸ©ãå«ãŸããŠããã
ïŒ AfactorïŒå¹Žæ¬¡æç®ä¿æ°ïŒ
ïŒ äžè¬éçšæé
ïŒ æ£åŒåé¡åŠçœ®
ïŒ éçšçµäºæé
ïŒ ãœãããŠã§ã¢åé¡åŠçœ®
b) èšæ°ã«ãŒã«
1) ãœãããŠã§ã¢ãä»ããŠäŸçµŠãããååå¥ã®åé¡åŠçœ®ã¯ïŒåå¥ã«äŸçµŠããããïŒäžã€ã«ãŸãšããããŠäŸçµŠããããã«é¢ãããïŒèšæ°ãããªããã°ãªããªãã
2) äžè¬ã«éçšãããã©ã®ãããªãœãããŠã§ã¢ãªãªãŒã¹ã§ãã£ãŠãïŒèŠã€ããããæ¬ é¥ãä¿®æ£ããããã®åé¡åŠçœ®ã¯ïŒè£œé åã¯è©Šéšç°å¢ã«ãããŠïŒèŠã€ãã£ãå Žæã®å å€ã«é¢ãããèšæ°ãããã
3) è€æ°ã®åé¡åŠçœ®ãäžã€ã«ãŸãšããããæã¯ïŒæ¬ é¥ãšããŠèå¥ãããåé¡åŠçœ®ã®ã¿ãæ¬ é¥ãšããŠèšæ°ãããªããã°ãªããªãã
4) 顧客ã®ãµã€ãã«ãŠïŒè€æ°ã«ãŸãããæ©åšãããã»ããµã®ããã«åé¡åŠçœ®ãè€è£œãããåæ°ã«é¢ãããïŒåå¥ã®åé¡åŠçœ®åæ°ã¯ïŒåãšããŠèšæ°ãããã
5) è€æ°ã®ã³ãŒãã«ãŸããããããªïŒè€æ°ã®åå¥ã®åé¡åŠçœ®ãäžã€ã®å€æŽã«å¹æãããïŒãããã®åé¡åŠçœ®ãïŒé¡§å®¢ã«ãã£ãŠåå¥ã«èå¥ãããå ŽåïŒãããã¯ïŒåå¥ã«èšæ°ããªããã°ãªããªãã
6) è€æ°ã®ãªãªãŒã¹ã«ãŸãããåããããã¯é¡äŒŒã®æ¬ é¥ã«åãçµãã§ããåé¡åŠçœ®ã¯ïŒåå¥ã«èšæ°ãããã
7) åé¡åŠçœ®ã¯ïŒåé¡åŠçœ®ã®äžè¬éçšã§èšæ°ããããäŸãã°ïŒäžèšã®æã«åé¡åŠçœ®ãèšæ°
ããã
ïŒ ãªã³ãµã€ãã§ã·ã¹ãã ã®ã€ã³ã¹ãã¬ãŒã·ã§ã³æºåãåºæ¥ãæ
ïŒ é¡§å®¢ã«ãããµã€ããžã®ããŠã³ããŒããå©çšå¯èœãšãªã£ãæ
ïŒ é¡§å®¢ã«é éãããæ
8) æ¬ é¥ã«å¯Ÿããåé¡åŠçœ®ã¯ïŒä»¥äžã®åºæºã®ãªãã§ïŒã€ä»¥äžåèŽããå Žåãèšãã
ïŒ åé¡åŠçœ®ã®ãªãªãŒã¹æ¥ãã 12 ã¶æ以å ã«ïŒ
o åé¡åŠçœ®ãã€ã³ã¹ããŒã«ã§ããªããåã¯
o åé¡åŠçœ®ãæå³ããåé¡ãæ¯æ£ããªããåã¯
o æœåšçããããã¯çŸå®ã®åé¡ã§åé¡åŠçœ®ãåãäžãããã
ïŒ åé¡åŠçœ®ã®ãªãªãŒã¹æ¥ããïŒã¶æ以å ã«ïŒåé¡åŠçœ®ã«èµ·å ãããšèŠãããå¯æ¬¡ç圱é¿ã§ããïŒèŽåœ
çãããã¯é倧åé¡ããã
9) æ¬ é¥ã«å¯Ÿããåé¡åŠçœ®ã¯ïŒçµç¹ã«ãã£ãŠåé¡åŠçœ®ãæ¬ é¥ãšå€æãããæã§èšæ°ãããªããã°ãªããªãã
c) èšæ°ã«ãŒã«ã®é€å€
1) äžè¬éçšãããã©ã®ãããªãªãªãŒã¹ã§ãã£ãŠãïŒãŸã éçšå¯èœã«ã¯ãªã£ãŠããªãç¶æ ã®ãœãããŠã§ã¢ã§çºèŠãããåé¡ã«ä»éããåé¡åŠçœ®ã¯èšæ°ãããªãã
2) ããåé¡åŠçœ®ããªãªãŒã¹æ¥ã® 12 ã±æ以éã«æ¬ é¥ã§ããããšãå€æããå Žåã¯ãæ¬ é¥ãçºèŠãããåé¡åŠçœ®ãšããŠã¯èšæ°ããªãã
d) èšç®åŒ
1) SFQã®æž¬å®ã¯ïŒè¡š8.1-2ã«ç€ºãããããã«æ¯æèšç®ããã
TL 9000 Quality Management System Measurements Handbook R5.5
8-2
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
8-2
Section 8 â Software Measurements ã»ã¯ã·ã§ã³ 8 â ãœãããŠã§ã¢æž¬å®æ³
2) The SFQ measurement measures the rate at which fixes are found defective during
their initial 12 months of deployment. The numerator shall be the number of fixes that
were found defective during the reporting month. The denominator shall be the sum of
the number of fixes released during the reporting month and the preceding 11 months.
Table 8.1-1 SFQ Notation
Identifier Definition
Afactor Number of calculation periods in a year
DFc Number of software fixes found defective during the month
Fc Total number of software fixes that became available for
general release during the 12 month period leading up to and
including the report month
Table 8.1-2 SFQ Measurement Identifiers and Formulas
Identifier Title Formula Note
SFQ Software fix quality 100 x Afactor x (DFc
/ Fc)
% defective
per year
e) Reported Data and Format
1) Monthly data shall be reported per the frequency and method noted in Sections 3.5.2
and 4.2.2 of this document.
2) The SFQ measurements shall be reported for each month and each product category
with data elements, or equivalent as defined by the TL 9000 Administrator, shown in
Table 8.1-3.
Table 8.1-3 SFQ Data Table
Identifier Value
MeasurementID SFQ
Fa Afactor
DFc Number of software fixes found defective during the month
Fc Total number of software fixes that became available for
general release during the 12 month period leading up to
and including the report month.
3) The organization shall have the capability to provide the cumulative number of software
fixes by release. These data are not reported to the MRS.
4) The SFQ measurement shall be reported by counting the defective software fixes and the
total available software fixes of all in-service software releases.
5) The SFQ measurement is unique because when fixes are declared generally available, it
is up to the customer to choose whether or not to install the fix. Therefore, there is no
customer specific reporting required due to the complexity of the SFQ measurement.
2) SFQ ã®æž¬å®ã¯ããã®å°å ¥ã®æåã® 12 ã±æéã«æ¬ é¥ãçºèŠãããåé¡åŠçœ®ã®å²åã枬å®ãããååã¯å ±åæã«ãããæ¬ é¥ãçºèŠãããåé¡åŠçœ®ã§ãªããã°ãªããªããåæ¯ã¯å ±åæåã³ããã«å ç«ã€ 11 ã±æã®åé¡åŠçœ®ã®ç·åã§ãªããã°ãªããªãã
è¡š 8.1-1 SFQèšæ³
èå¥å å®çŸ©
Afactor
DFc
幎éã®å ±ååäœæéã®æ°
ãã®æã®éã«æ¬ é¥ãçºèŠããããœãããŠã§ã¢åé¡åŠçœ®ã®æ°
Fc ãã®æãå«ã 12 ã±æã®éã«äžè¬ã«å©çšå¯èœãšãªã£ããªãªãŒã¹ã«ããããœãããŠã§ã¢
åé¡åŠçœ®ã®åèšæ°
è¡š 8.1-2 SFQ 枬å®æ³èå¥ååã³èšç®åŒ
èå¥å å称 èšç®åŒ 泚èš
SFQ ãœãããŠã§ã¢åé¡åŠçœ®å質 100ÃAfactorÃ(DFc/Fc) 幎ããšã®æ¬ é¥ç(%ïŒ
e) å ±åããŒã¿åã³æ§åŒ
1) æ次ããŒã¿ã¯ïŒæ¬æžã®ã»ã¯ã·ã§ã³ 3.5.2 åã³ 4.2.2 ã§èšèŒãããé »åºŠãšæ¹æ³ã§å ±åããªããã°ãªããªãã
2) SFQ ã®æž¬å®å€ã¯ïŒæããšïŒè£œååé¡ããšã«ïŒ è¡š 8.1-3 ã«ç€ºãããŒã¿èŠçŽ å㯠TL 9000 管çè ãèŠå®ã
ãåçãªèŠçŽ ã§å ±åããªããã°ãªããªãã
è¡š 8.1-3 SFQããŒã¿è¡š
èå¥å å€
MeasurementID SFQ
Afactor DFc 幎éã®å ±ååäœæéã®æ°
ãã®æã®éã«æ¬ é¥ãçºèŠããããœãããŠã§ã¢åé¡åŠçœ®ã®æ°
Fc ãã®æãå«ã 12ã±æã®éã«äžè¬ã«å©çšå¯èœãšãªã£ããªãªãŒã¹ã«ããããœãããŠã§
ã¢åé¡åŠçœ®ã®åèšæ°
3) çµç¹ã¯ïŒãªãªãŒã¹ããšã®ãœãããŠã§ã¢åé¡åŠçœ®ã®çŽ¯ç©æ°ãæäŸããèœåããããªããã°ãªããªãããã
ãã®ããŒã¿ã¯ MRS ã«å ±åããªãã
4) SFQ ã®æž¬å®æ³ã§ã¯ïŒãã¹ãŠã®çšŒåããŠãããœãããŠã§ã¢ãªãªãŒã¹ã®æ¬ é¥ã®ãããœãããŠã§ã¢åé¡åŠçœ®å
ã³éçšå¯èœãªãœãããŠã§ã¢åé¡åŠçœ®ã®èšæ°ããããšã«ãã£ãŠå ±åãããªããã°ãªããªãã
5) SFQ ã®æž¬å®ã¯ïŒåé¡åŠçœ®ãäžè¬éçšå¯èœãšå®£èšããããšãïŒåé¡åŠçœ®ãã€ã³ã¹ããŒã«ãããã©ãããéž
æããã®ã¯é¡§å®¢ã§ããç¹ã§ç°äŸã§ãããããããïŒãã® SFQ ã®æž¬å®ã®è€éããããã®ã§èŠæ±ããã顧客
ç¹æã®å ±åã¯ãªãã
TL 9000 Quality Management System Measurements Handbook R5.5
8-3
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
8-3
Section 8 â Software Measurements ã»ã¯ã·ã§ã³ 8 â ãœãããŠã§ã¢æž¬å®æ³
8.1.5 Sources of Data
Customers shall provide feedback to the organization on unsuccessful results of any customer
installed software fixes. Organizations shall collect all data necessary to report these
measurements to the TL 9000 Administrator.
8.1.6 Examples
Examples for applying the SFQ measurement are located on the TL 9000 website
(http://tl9000.org/links.html).
8.1.5 ããŒã¿çºçæº
顧客ã¯ïŒé¡§å®¢ãã€ã³ã¹ããŒã«ãããããããœãããŠã§ã¢åé¡åŠçœ®ã®äžæåã®çµæãïŒçµç¹ã«ãã£ãŒãããã¯
ããªããã°ãªããªããçµç¹ã¯ïŒTL 9000 管çè ãžãããã®æž¬å®ãå ±åããããã«å¿ èŠãªãã¹ãŠã®ããŒã¿ãéã
ãªããã°ãªããªãã
8.1.6 äºäŸ
SFQ枬å®æ³ã®é©çšäºäŸã¯ïŒTL 9000ãŠã§ããµã€ãïŒtl9000.org/links.htmlïŒã«ç€ºãã
TL 9000 Quality Management System Measurements Handbook R5.5
8-4
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
8-4
Section 9 â Service Quality Measurements ã»ã¯ã·ã§ã³ 9 â ãµãŒãã¹å質ã®æž¬å®æ³
9.3 Incident Restore Rate (IRR)
9.3.1 Description and Title
Incident Restore Rate measures the organizationâs overall responsiveness to incidents. The
Incident Restore Rate applies to the restoration to normal service operation and its normal
functionality as quickly as possible in response to incidents. As part of normal network and
service operations management, incidents can be classified as required and agreed between
the customer and the organization, normally with a formal agreement (Contract, Underpinning
Contract Terms, Operating Level Agreement (OLA), Service Level Agreement (SLA)) because
the focus is on measuring the response performance to different agreements or internal target
thresholds or the default targets where no formal target exists.
IRR is a different measurement to FRT in that not all
incidents will be problem reports and restoration can
be effected by temporary fixes (see counting rules
below). Incident restoration is normally measured in
timescales of hours. Problem reporting is often
measured in days and weeks timescales.
The goal of the Incident Restore Rate measurement
is to support the improvement of the Incident
Management process which restores normal service
operation as quickly as possible and minimizes the
impact on business operations, thus ensuring that the
best possible levels of service quality and availability
are maintained for normal service operation. The
measurement reflects restored performance to
agreed Service Levels or Targets. It is focused on the
Operatorâs Customer Support Desk and Network
Operations Centre (NOC) managed by an Operator or
a Supplier performing a Managed Service as per
Figure 9.3-1.
Figure 9.3-1: Levels of Incident Management
Based on the measurement taken and the teams involved in restoration of service, it is possible
to measure the end-to-end (E2E) IRR. The focus of this measurement is from the Operatorâs
Customer Service desk or NOC perspective. The E2E time to restore the service includes any
time interval associated with the time spent by a supplier to support the restoration as defined
within the contractual agreement e.g. Network Operations Centre, Field Operations, Third Party
Technical Support or Suppliers.
9.3 ã€ã³ã·ãã³ã³ã埩æ§ç (IRR)
9.3.1 äžè¬ 蚳泚ïŒåæã« General æã
ã€ã³ã·ãã³ã埩æ§çã¯ïŒçµç¹ã®ã€ã³ã·ãã³ããžã®å šè¬çãªå¯Ÿå¿æ§ã枬å®ãããã€ã³ã·ãã³ã埩æ§çã¯ã€ã³ã·ãã³ããžã®å¯Ÿå¿ãšããŠã§ããã ãæ©æã«éåžžãµãŒãã¹ãªãã¬ãŒã·ã§ã³åã³éåžžæ©èœãžã®åŸ©æ§ã«é©çšãããã€ã³ã·ãã³ãã¯ïŒéåžžïŒãããã¯ãŒã¯åã³ãµãŒãã¹ãªãã¬ãŒã·ã§ã³ãããžã¡ã³ãã®äžéšãšããŠïŒäžè¬ã®å ¬åŒèŠæžïŒå¥çŽãåºç€ãšãªãå¥çŽæ¡ä»¶ããªãã¬ãŒãã£ã³ã°ã¬ãã«ã¢ã°ãªãŒã¡ã³ã(OLA)ïŒãµãŒãã¹ã¬ãã«ã¢ã°ãªãŒã¡ã³ãïŒSLAïŒïŒã以ã£ãŠïŒé¡§å®¢ãšçµç¹ãšã®éã§èŠæ±ããåæããããã®ãšåé¡ããããšãã§ããããªããªãïŒçŠç¹ãšãªãã®ã¯ãå ¬åŒãªç®æšãšèšããã®ãååšããªãïŒæ§ã ãªå¥çŽåã¯å éšç®æšã®åºæºåã¯æé»ã®ç®æšïŒã«å¯Ÿããå¿çããã©ãŒãã³ã¹ã枬å®ããããšã ããã§ããã
IRRã¯å šãŠã®ã€ã³ã·ãã³ããåé¡å ±åã«ãªããªãããšãåã³äžæçãªåŠçœ®ã«ãã£ãŠåŸ©æ§ã«å¹æãããåŸãç¹ã§FRTãšã¯ç°ãªã枬å®ã§ãããïŒä»¥äžã®èšæ°ã«ãŒã«åç §ïŒã€ã³ã·ãã³ã埩æ§ã¯éåžžãæéåäœã§èšæ°ãããåé¡å ±åã¯æ¥æ°åã³é±åäœã§æž¬å®ãããããšãå€ãã
ã€ã³ã·ãã³ã埩æ§çã¯ãéåžžãµãŒãã¹ãªãã¬ãŒã·ã§ã³ãã§ããã ãæ©ã埩æ§ãããããžãã¹ãªãã¬ãŒã·ã§ã³ãžã®åœ±é¿ãæå°åããéåžžãµãŒãã¹ãªãã¬ãŒã·ã§ã³ã«å¯ŸããŠãå¯èœãªæé«ã¬ãã«ã®ãµãŒãã¹å質ãšå¯çšæ§ãç¶æããããšã§ãã€ã³ã·ãã³ããããžã¡ã³ãããã»ã¹ã®æ¹åãæ¯æŽããããšãç®çãšããããã®æž¬å®ã¯åæããããµãŒãã¹ã¬ãã«åã¯ç®æšã«å¯Ÿãã埩æ§ããã©ãŒãã³ã¹ãåæ ãããããã¯ãå³9.3.1ã«ç€ºãéãããªãã¬ãŒã¿ã®é¡§å®¢æ¯æŽãã¹ã¯åã³ãªãã¬ãŒã¿ã«ç®¡çããããããã¯ãŒã¯ãªãã¬ãŒã·ã§ã³ã»ã³ã¿ïŒNOCïŒ,åã¯ãããŒãžããµãŒãã¹ãå®è¡ããäŸçµŠè ã察象ãšããŠããã
å³ 9.3-1: ã€ã³ã·ãã³ããããžã¡ã³ãã®éå±€
é©çšãã枬å®æ³ãåã³ãµãŒãã¹ã®åŸ©æ§ã«åŸäºããããŒã ãåºæ¬æ§æãšããŠã端ãã端ãŸã§ã®(ãšã³ãããŒãšã³
ãïŒE2E)IRR ã®æž¬å®ãå¯èœã§ããããã®æž¬å®ã¯ããªãã¬ãŒã¿ã®é¡§å®¢ãµãŒãã¹ãã¹ã¯å㯠NOC ããã®èŠç¹ã察
象ãšããŠããããµãŒãã¹ä¿®åŸ©ã«èŠãã E2E ã®æéã«ã¯ãµãã©ã€ã€ãå¥çŽäžã®èŠæžã§å®çŸ©ããã埩æ§æ¯æŽïŒäŸ
ãã°ãããã¯ãŒã¯ãªãã¬ãŒã·ã§ã³ã»ã³ã¿ããã£ãŒã«ããªãã¬ãŒã·ã§ã³ããµãŒãããŒãã£ãã¯ãã«ã«ãµããŒãã»
ã³ã¿ïŒã®ããã«è²»ãããæéã«é¢ããå šãŠã®æéééãå«ãã
TL 9000 Quality Management System Measurements Handbook R5.5
9-1
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
9-1
Section 9 â Service Quality Measurements ã»ã¯ã·ã§ã³ 9 â ãµãŒãã¹å質ã®æž¬å®æ³
9.3.2 Purpose
This measurement is used to quantify the responsiveness to incidents and to facilitate prompt
restoration of normal service operation.
9.3.3 Applicable Product Categories
This measurement applies to product categories indicated in Measurement Applicability Table
(Normalized Units), Appendix A, Table A-2.
NOTE: IRR is a required measurement for the categories for which it is applicable. It cannot be
declared exempt for those categories.
9.3.4 Detailed Description
a) Terminology
The Glossary includes definitions for
â Restore Time
â Incident Classification
b) Counting Rules
1) Incidents which are worked through an Incident Management process that are originated
by a customer or notified via network surveillance processes shall be included.
2) The start of the interval for calculating Incident Restore Rate shall be the date and time
when reported by a customer or when an incident is notified via network surveillance
processes, whichever comes first. Within the organization, the start time of the incident
remains unchanged regardless of any subsequent change in severity.
3) The end of the interval for calculating Incident Restore Rate shall be the date and time
when service or functionality has been returned to normal service operation as agreed or
specified by the SLA / contract. Restoration does not necessarily include resolution of the
underlying problem.
Figure 9.3-2: Timestamps of Incident Restore Time
4) If the customer later rejects the return to standard quality operation as incomplete or
causing side effects, the incident report shall be re-classified as open and all times are
aggregated as part of the original incident. All intervening time shall be included in
determining on-time incident closure.
9.3.2 ç®ç
ãã®æž¬å®é ç®ã¯ïŒéåžžã®ãµãŒãã¹ãªãã¬ãŒã·ã§ã³ã«ãããŠã€ã³ã·ãã³ãã«å¯Ÿãã察å¿æ§ãæ°å€åãçŽ æ©ã埩æ§ãä¿é²ããããã«äœ¿çšããã
9.3.3 é©çšãã補ååé¡
ãã®æž¬å®é ç®ã¯ïŒéå±æžAã®è¡šA-2ïŒæž¬å®æ³é©çšè¡šïŒèŠæºååäœïŒã«ç€ºããããµãŒãã¹åé¡ã«é©çšããã
泚èšïŒIRRã¯ããã®é©çšå¯èœãªåé¡ã«å¯ŸããŠèŠæ±ããã枬å®æ³ã§ããããã®åé¡ã«å¯Ÿãå é€ã宣èšããããšã¯ã§ããªãã
9.3.4 詳现説æ
a) çšèª
çšèªè§£èª¬ã«ã¯ïŒæ¬¡ã®çšèªã®å®çŸ©ãå«ãŸããŠããã
ïŒåŸ©æ§æé
ïŒã€ã³ã·ãã³ãåé¡
b) èšæ°ã«ãŒã«
1) 顧客ãèµ·ç¹ãšãããåã¯ãããã¯ãŒã¯ãµãŒãã€ã©ã³ã¹ããã»ã¹çµç±ã§éç¥ãããã€ã³ã·ãã³ããããžã¡ã³ãããã»ã¹ã§å¯Ÿå¿ããã€ã³ã·ãã³ãã¯å«ããªããã°ãªããªãã
2) ã©ã¡ããå ã§ãã£ãŠãã顧客ã«ããéç¥åã¯ãããã¯ãŒã¯ãµãŒãã€ã©ã³ã¹ããã»ã¹çµç±ã®éç¥ã®æ¥ä»ãšæå»ãã€ã³ã·ãã³ã³ã埩æ§çèšç®ã®éå§æéãšããªããã°ãªããªããçµç¹å ã«ãããŠã¯ãã€ã³ã·ãã³ãã®éå§æå»ã¯é倧æ§ã«ã€ããŠã®ãã®åŸã®å€æŽã«ä¿ããå€ãããªãã
3) ã€ã³ã·ãã³ã³ã埩æ§çã®çµäºã¯ããµãŒãã¹ãæ©èœããåæåã¯SLA/å¥çŽã®éããéåžžãµãŒãã¹ãªãã¬ãŒã·ã§ã³ã«æ»ã£ãæ¥ä»ãšæå»ãšããªããã°ãªããªãã埩æ§ã¯å¿ ããããæœåšããŠããåé¡ã®è§£æ±ºãå«ãã§ããªããšãããã
å³9.3.2 ã€ã³ã·ãã³ã埩æ§æéã®ã¿ã€ã ã¹ã¿ã³ã
4) ãã顧客ãåŸã§ãäžå®å šåã¯å¯äœçšããããšããŠãæšæºå質ãªãã¬ãŒã·ã§ã³ãžæ»ãããšãæåŠããå Žåã¯ããã®ã€ã³ã·ãã³ãã¯ãæªè§£æ±ºãšå床åé¡ãããå šéšã®æéãæåã®ã€ã³ã·ãã³ãã®éšåãšããŠç·èšããªããã°ãªããªããå šãŠã®è²»ããæéã¯ãå®å»ã€ã³ã·ãã³ã解決ã®æ±ºå®ã«å«ãŸããªããã°ãªããªãã
TL 9000 Quality Management System Measurements Handbook R5.5
9-2
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
9-2
Section 9 â Service Quality Measurements ã»ã¯ã·ã§ã³ 9 â ãµãŒãã¹å質ã®æž¬å®æ³
5) For Incident Restore Rate, incidents are counted once, ONLY in the month they are due
to be restored and not in the month they are fixed or restored.
6) All times will be counted unless there is an agreement or contract where specific areas of
excessive delay may be discounted. By the nature of an incident restore, there is a need
for the supplier and/or operator to work together with the customer to meet the necessary
deadlines.
NOTE: Any agreement or contract should outline areas where excessive delays should
be discounted from the IRR measure, e.g. where a third party causes a delay outside the
control of the supplier, or in the case of events where the customer specifically requests
a delay or reschedule of incident restore action, such as periods (weekend or holidays)
when access to premises cannot be given.
7) If an incident misses its restore due date and time when required by an agreement, it is
not counted in Incident Restore Rate again â even if a new due date is negotiated.
c) Counting Rule Exclusions
1) The IRR measurement shall exclude the following because they do not meet the
definition of TL 9000 incidents:
a) an incident report determined to represent an Information Request (IR), which need
not be documented by the customer to the organization;
b) an incident report determined to be a feature request by agreement between the
organization and customer;
c) an incident report related to use of the product in a manner not defined in the
specification of the product by agreement between the organization and customer;
2) Incidents which are closed out through the initial operator contact center without the need
for any escalation to the Incident Management Process are not included in this
measurement.
3) The Incident Restore Rate measurement is intended to quantify the organisationâs
performance in restoring normal service operations per the agreement specified in the
SLA. By default, all delays are included in the Incident Restore Rate, however specific
causes of delays which are outside the control of the organization are excluded if
documented in the SLA. The organization shall keep records of such delays with specific
start and stop times as determined by the organization. Examples of these types of
excessive delays are:
a) Inevitable, unpredictable, and unreasonably severe event caused by natural forces
without any human interference, and over which an insured party has no control, such
as an earthquake, flood, hurricane, lightning, and snowstorm.
b) Some components of the measurement may be excluded based on contractual
definitions (agreements) or dependent on scope accountability, if they exist, e.g.
incidents triggered by planned work may be excluded, if agreed in the contract or
agreement, if restored within the planned work activity time window. If an incident is
active upon completion of the planned work activity time window, then the incident
becomes unplanned and becomes part of the standard incident management process
as well as the IRR measure.
5) ã€ã³ã·ãã³ã³ã埩æ§çã«é¢ããã€ã³ã·ãã³ãã¯äžåèšæ°ãã埩æ§ãã¹ãæã®ã¿èšæ°ããåŠçœ®ããåã¯åŸ©æ§ããæã¯èšæ°ããªãã
6) ç¹å®ã®åéã§æ¥µç«¯ãªé ãã¯èšæ°ããªããŠãè¯ããšããèŠæžåã¯å¥çŽããªãéããå šãŠã®æéãèšæ°ããããã€ã³ã·ãã³ã³ã埩æ§ã®æ§è³ªãããå¿ èŠãªæçµæéã«éã«åãããã«ãµãã©ã€ã€åã³/åã¯ãªãã¬ãŒã¿ãšé¡§å®¢ãšã®å ±åäœæ¥ãå¿ èŠã«ãªãã
泚èšïŒã©ããªèŠæžåã¯å¥çŽæžã§ããIRRã®æž¬å®ã§ã極端ãªé ããèšæ°ãã¹ãã§ãªãé åã®æŠèŠãèšèŒãã¹ãã§ãããäŸïŒãµãã©ã€ã€ã®ç®¡çå€ã§ã®ãµãŒãããŒãã£ãåå ã®é ããåã¯é¡§å®¢ãç¹å¥ã«é ãåã¯ã€ã³ã·ãã³ã埩æ§æŽ»åã®åèšç»ãèŠæ±ããå Žåãæ§å ãžã®ç«ã¡å ¥ããèš±å¯ãããªãæéïŒé±æ«ãåã¯äŒæ¥ïŒã
7) ãããã€ã³ã·ãã³ãã®åŠçœ®ãèŠæžã§èŠæ±ããã察å¿æéæ¥åã³æå»ãå®ããªãå Žåãã€ã³ã·ãã³ã埩æ§çã«å床èšæ°ã¯ããªã--äŸãæ°ããªæéãåæãããŠãã
c) èšæ°ã«ãŒã«ã®é€å€
1) IRR枬å®æ³ã¯ã以äžã®é ç®ãTL 9000ã®ã€ã³ã·ãã³ãã®å®çŸ©ã«åèŽããŠããªãããã«é€å€ããªããã°ãªã
ãªãã
a) 顧客ããçµç¹ã«å¯ŸããŠææžåãèŠæ±ãããŠããªããæ å ±èŠæ± (Information Request:IR)ãšæ±ºå®ãããã€
ã³ã·ãã³ãå ±å
b) çµç¹ãšé¡§å®¢ã®éã®èŠæžã«ãã顧客èŠæ±ã§ãããšæ±ºå®ãããã€ã³ã·ãã³ãå ±å
c) çµç¹ãšé¡§å®¢ã®éã®èŠæžã«ãã補åä»æ§ã«å®çŸ©ãããŠããªãæ¹æ³ã§ã®å©çšã«é¢ããã€ã³ã·ãã³ãå ±å
2) ã€ãã·ã£ã«ãªãã¬ãŒã·ã§ã³ã³ã³ã¿ã¯ãã»ã³ã¿ãŒã«ãã解決æžã¿ã§ãã€ã³ã·ãã³ããããžã¡ã³ãããã»ã¹
ãžã®ãšã¹ã«ã¬ãŒã·ã§ã³ã®å¿ èŠããªãã€ã³ã·ãã³ã
3) ã€ã³ã·ãã³ã埩æ§ç枬å®æ³ã¯ãSLAã§ç€ºãããèŠæžã«åŸã£ãŠéåžžãµãŒãã¹ãªãã¬ãŒã·ã§ã³ãžã®åŸ©æ§ã«ã
ããçµç¹ã®ããã©ãŒãã³ã¹ã®æ°å€åãæå³ããŠãããæé»ã®å ã«å šãŠã®é 延ã¯ã€ã³ã·ãã³ã埩æ§çã«å«
ãŸããããããSLAå ã§ææžåãããŠããã°ãçµç¹ã®å¶åŸ¡ç¯å²å€ã§ã®ç¹å®ã®é 延åå ã¯é€å€ããããçµ
ç¹ã¯ãçµç¹ã決ããç¹å®ã®éå§åã³åæ¢æå»ã䌎ããã®ãããªé 延ã®èšé²ãä¿æããªããã°ãªããªãã
ãããã®æ¥µç«¯ãªé 延ã®åã®äŸã¯ã
a) å°éã措氎ãããªã±ãŒã³ãé·åã³å¹éªãªã©ã®äººéãé¢äžã§ãããä¿éºå¥çŽè ã®çµç¹ãã³ã³ãããŒã«
ã§ããªãèªç¶ã®åã«ãã£ãŠçããé¿ããããªããäºæž¬ã§ããªããéæ¹ããªãé倧ãªåºæ¥äºã
b) ãã®æž¬å®æ³ã®ã³ã³ããŒãã³ãã¯ããããããªãã°å¥çŽæžã®å®çŸ©ïŒèŠæžïŒãåºã«ãåã¯è²¬ä»»ç¯å²ã«åŸ
ã£ãŠé€å€ããããšãã§ããïŒäŸãã°ãå¥çŽãŸãã¯èŠæžã§åæãããŠããã°ãèšç»ãããäœæ¥ã«ãã£
ãŠçºçããã€ã³ã·ãã³ãã¯ãèšç»ãããäœæ¥æŽ»åã®æéæ å ã§åŸ©æ§ããå Žåã«ã¯é€å€ããŠãè¯ãã
ãããèšç»ãããäœæ¥æŽ»åã®æéæ ã®å®äºæã«ã€ã³ã·ãã³ããæ®ã£ãŠããã°ããã®ã€ã³ã·ãã³ãã¯
èšç»ãããŠããªããã®ã§ãããIRR枬å®ãšåæ§ã«ãæšæºã®ã€ã³ã·ãã³ããããžã¡ã³ãããã»ã¹ã®äž
éšãšãªãã
TL 9000 Quality Management System Measurements Handbook R5.5
9-3
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
9-3
Section 9 â Service Quality Measurements ã»ã¯ã·ã§ã³ 9 â ãµãŒãã¹å質ã®æž¬å®æ³
c) In certain cases, restoration of normal service is dependent on another organization or
third party where a pre-existing SLA has or has not been defined. The time associated
with the work carried out by the other organization / third party is included in IRR
unless the agreement specifies how these cases are handled.
d) Calculations and Formulas
1) The Incident Restore Rate measurement is calculated monthly as shown in Table 9.3-2.
Incidents that were restored on time are those that were restored by the due restore
target reference time as defined in the SLA.
2) The Incident Restore Target will normally be specified in the SLA. If no formal SLA exists
then internal targets may be used. If no internal targets are used, then a default shall be
used of 2 hours for a central office or 4 hours for a remote office.
3) In cases where there are no incidents due to be closed during the monthly calculation
period, the Incident Restore value is 100%.
Table 9.3-1 IRR Notation
Identifier Definition
Irc Number of incidents restored on time
Ird Number of incidents due to be restored
Table 9.3-2 Restore Measurement Identifiers and Formulas
Identifier Title Formula Note
IRR Incident Restore Rate 100 x (Irc / Ird) % closed on time
e) Reported Data and Format
1) Monthly data shall be reported per the frequency and method noted in Sections 3.5.2
and 4.2.2 of this document.
2) The IRR measurement shall be reported for each month and each product category with
data elements, or equivalent as defined by the TL 9000 Administrator, shown in Table
9.3-3.
3) The organization shall keep track of known errors.
Table 9.3-3 IRR Data Table
Identifier Value
MeasurementID Incident Restore Rate (IRR)
Irc Number of incidents restored on time
Ird Number of incidents due to be restored
9.3.5 Sources of Data
Data for the Incident Restore Rate measurement are derived from information provided by
customers and from analysis by the organizationâs ticket management system and the
following:
c) ããã±ãŒã¹ã§ã¯ãäºåSLAãå®çŸ©ãããŠããŠãå®çŸ©ãããŠããªããŠãéåžžãµãŒãã¹ã®åŸ©æ§ã¯ä»ã®çµ
ç¹ãŸãã¯ãµãŒãããŒãã£ã«äŸåããŠãããèŠæžããã®ãããªã±ãŒã¹ãã©ã®æ§ã«æ±ããæå®ããŠããª
ãéããä»ã®çµç¹åã¯ãµãŒãããŒãã£ã«ãã£ãŠéè¡ãããäœæ¥ã«é¢é£ããæéã¯IRRã«å«ãŸããã
d) èšç®åŒ
1) ã€ã³ã·ãã³ã埩æ§ç枬å®å€ã¯ïŒè¡š9.3-2ã«ç€ºãããŠããéãã«æåäœã«èšç®ãããå®å»ã«åŸ©æ§ããã€ã³ã·
ãã³ããšã¯ãSLAã§å®çŸ©ãããç®æšæéæå»ãŸã§ã«åŸ©æ§ãããã®ã§ããã
2) ã€ã³ã·ãã³ã埩æ§ç®æšã¯ãéåžžã¯SLAã§ç€ºããããããå ¬åŒSLAãååšããªãå Žåã¯ãå éšç®æšãçšã
ãŠãè¯ããå éšç®æšã䜿çšãããŠããªãå Žåã¯ãããã©ã«ãã¯ãäžå€®ãªãã£ã¹ã¯ïŒæéãé éãªãã£ã¹
ã«å¯ŸããŠã¯ïŒæéã䜿ããªããã°ãªããªãã
3) æã®èšç®æéã«è§£æ±ºãã¹ãã€ã³ã·ãã³ãããªãå Žåã¯ãã€ã³ã·ãã³ã埩æ§å€ã¯100%ã§ããã
è¡š9.3-1 IRRèšæ³
èå¥å å®çŸ©
Irc å®å»ã«åŸ©æ§ããã€ã³ã·ãã³ãã®æ°
Ird 埩æ§ãã¹ãã€ã³ã·ãã³ãã®æ°
è¡š9.3-2 IRR 枬å®æ³èå¥ååã³èšç®åŒ
èå¥å å称 èšç®åŒ 泚èš
IRR ã€ã³ã·ãã³ã埩æ§ç 100 x (Irc / Ird) ïŒ å®å»è§£æ±º
e) å ±åããŒã¿åã³æ§åŒ
1) æ次ããŒã¿ã¯ïŒæ¬æžã®ã»ã¯ã·ã§ã³3.5.2åã³4.2.2ã«èšèŒãããé »åºŠãšæ¹æ³ã§å ±åããªããã°ãªããªãã
2) IRR枬å®å€ã¯ïŒæããšïŒãµãŒãã¹åé¡ããšã«ïŒè¡š9.3-3ã«ç€ºãããŒã¿èŠçŽ åã¯TL 9000管çè ãèŠå®ããå
çã®ãã®ã§å ±åããªããã°ãªããªãã
3) çµç¹ã¯æ¢ç¥ã®ãšã©ãŒã远跡ããªããã°ãªããªãã
è¡š9.3-3 IRR ããŒã¿è¡š
èå¥å å€
枬å®æ³èå¥å ã€ã³ã·ãã³ã埩æ§ç(IRR)
Irc å®å»ã«åŸ©æ§ããã€ã³ã·ãã³ãã®æ°
Ird 埩æ§ãã¹ãã€ã³ã·ãã³ãã®æ°
9.3.5 ããŒã¿çºçæº
ã€ã³ã·ãã³ã埩æ§ç枬å®æ³ã®ããŒã¿ã¯ïŒé¡§å®¢ãäŸçµŠããæ å ±åã³çµç¹ã®ãã±ãããããžã¡ã³ãã·ã¹ãã ã«ãã
åæãåã³ä»¥äžããåŸãããã
TL 9000 Quality Management System Measurements Handbook R5.5
9-4
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
9-4
Section 9 â Service Quality Measurements ã»ã¯ã·ã§ã³ 9 â ãµãŒãã¹å質ã®æž¬å®æ³
a) Customers
1) confer with the organization to establish a due threshold time for incident report
restoration, and
2) agree with incident report restoration decisions.
b) Organizations
1) track incidents, their severity, the due threshold time, and actual restoration time, and
2) count on-time restoration of incidents, and compute the measurements per the stated
rules.
9.3.6 Examples
Examples for applying the IRR measurement are located on the TL 9000 website (tl9000.org).
a) 顧客ã¯ã
1) ã€ã³ã·ãã³ãå ±å埩æ§ã«å¯Ÿããæéæéã確ç«ããããã«çµç¹ãšåè°ãã
2) ã€ã³ã·ãã³ãå ±å埩æ§ã®æ±ºå®ã«ã€ããŠåæããã
b) çµç¹ã¯ã
1) ã€ã³ã·ãã³ãããã®é倧æ§ãæéæéåã³å®éã®åŸ©æ§æéã远跡ãã
2) å®å»ã«åŸ©æ§ããã€ã³ã·ãã³ããèšæ°ããèŠå®ãããã«ãŒã«ã«åŸã£ãŠæž¬å®å€ãèšç®ããã
9.3.6 äºäŸ
IRR 枬å®æ³ã®é©çšäºäŸã¯ïŒTL 9000 ãŠã§ããµã€ã(tl9000.org/links.html)ã«ç€ºãã
TL 9000 Quality Management System Measurements Handbook R5.5
9-5
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
9-5
Section 9 â Service Quality Measurements ã»ã¯ã·ã§ã³ 9 â ãµãŒãã¹å質ã®æž¬å®æ³
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TL 9000 Quality Management System Measurements Handbook R5.5
9-6
TL 9000 å質ãããžã¡ã³ãã·ã¹ãã 枬å®æ³ãã³ããã㯠R5.5
9-6