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2014-09-04 - SLIDE 1 IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of Information IS 257: Database Management

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Page 1: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 1IS 257 – Fall 2014

Database Design: Conceptual Model and ER Diagramming

Ray R. Larson

University of California, Berkeley

School of Information

IS 257: Database Management

Page 2: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 2IS 257 – Fall 2014

Announcements

• Accounts and MySQL access• Assignment 1 on web site (more at end of

class)

Page 3: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 3IS 257 – Fall 2014

Lecture Outline

• Review– Information Systems Planning

• Information Systems Architecture• Information Engineering

– Database Design• ER Diagrams• Developing the Conceptual Model for the

Diveshop Database

Page 4: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 4IS 257 – Fall 2014

Lecture Outline

• Review– Information Systems Planning

• Information Systems Architecture• Information Engineering

– Database Design• ER Diagrams• Developing the Conceptual Model for the

Diveshop Database

Page 5: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 5IS 257 – Fall 2014

Information Systems Architecture

• An ISA is a “conceptual blueprint or plan that expresses the desired future structure for information systems in an organization”

• It provides a “context within which managers throughout the organization can make consistent decisions concerning their information systems”– Quotes from McFadden (Modern Database Management, 4th edition),

Ch. 3

Page 6: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 6IS 257 – Fall 2014

Information Systems Architecture

• Benefits of ISA:– “Provides a basis for strategic planning of IS– Provides a basis for communicating with top

management and a context for budget decisions concerning IS

– Provides a unifying concept for the various stakeholders in information systems.

– Communicates the overall direction for information technology and a context for decisions in this area

– Helps achieve information integration when systems are distributed (increasing important in a global economy)

– Provides a basis for evaluating technology options (for example, downsizing and distributed processing)”

• Read Chapter 2 in Hoffer…

Page 7: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 7IS 257 – Fall 2014

Information Systems Architecture

• Zachman ISA Framework components– Data

• The “what” of the information system– Process

• The “how” of the information system– Network

• The “where” of the information system– People

• Who performs processes and are the source and receiver of data and information.

– Events and Points in time• When processes are performed

– Reasons• For events and rules that govern processing

Page 8: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 8IS 257 – Fall 2014

Zachman Framework

Page 9: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 9IS 257 – Fall 2014

Information Engineering

• A formal methodology that is used to create and maintain information systems

• Starts with the Business Model and works in a Top-Down fashion to build supporting data models and process models for that business model

Page 10: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 10IS 257 – Fall 2014

Information Engineering

Planning

Design

Analysis

Implementation

1. Identify Strategic Planning Factors a. Goals b. Critical Success Factors c. Problem Areas2. Identify Corporate Planning Objects a. Org. Units b. Locations c. Business Functions d. Entity types3. Develop Enterprise Model a. Function decomposition b. Entity-Relationship Diagram c. Planning Matrices

1. Develop Conceptual Model (detailed E-R Diagram)2. Develop Process Models (data flow diagrams)

1. Design Databases (normalized relations)2. Design Processes a. Action Diagrams b. User Interfaces: menus, screens, reports

1. Build database definitions (tables, indexes, etc.)2. Generate Applications (program code, control blocks, etc.)

Page 11: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 11IS 257 – Fall 2014

Focus

• In this course we will focus on the design aspects for databases

• We will NOT focus on interaction design or interface design (That is covered in other courses)

Page 12: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 12IS 257 – Fall 2014

Database Design Process

ConceptualModel

LogicalModel

External Model

Conceptual requirements

Conceptual requirements

Conceptual requirements

Conceptual requirements

Application 1

Application 1

Application 2 Application 3 Application 4

Application 2

Application 3

Application 4

External Model

External Model

External Model

Internal Model

Page 13: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 13IS 257 – Fall 2014

Database Design Process

• Conceptual Model– Merge the collective needs of all applications– Determine what Entities are being used

• Some object about which information is to maintained

– What are the Attributes of those entities?• Properties or characteristics of the entity• What attributes uniquely identify the entity

– What are the Relationships between entities• How the entities interact with each other?

Page 14: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 14IS 257 – Fall 2014

Entity

• An Entity is an object in the real world (or even imaginary worlds) about which we want or need to maintain information– Persons (e.g.: customers in a business,

employees, authors)– Things (e.g.: purchase orders, meetings,

parts, companies)

Employee

Page 15: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 15IS 257 – Fall 2014

Attributes

• Attributes are the significant properties or characteristics of an entity that help identify it and provide the information needed to interact with it or use it. (This is the Metadata for the entities.)

Employee

Last

Middle

First

Name SSN

Age

Birthdate

Projects

Page 16: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 16IS 257 – Fall 2014

Relationships

• Relationships are the associations between entities. They can involve one or more entities and belong to particular relationship types

Page 17: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 17IS 257 – Fall 2014

Relationships

ClassAttendsStudent

PartSuppliesproject partsSupplier

Project

Page 18: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 18IS 257 – Fall 2014

Types of Relationships

• Concerned only with cardinality of relationship

TruckAssignedEmployee

ProjectAssignedEmployee

ProjectAssignedEmployee

1 1

n

n

1

m

Chen ER notation

Page 19: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 19IS 257 – Fall 2014

Other Notations

TruckAssignedEmployee

ProjectAssignedEmployee

ProjectAssignedEmployee

“Crow’s Foot”

Page 20: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 20IS 257 – Fall 2014

Many to Many Relationships

Employee

ProjectIsAssigned

ProjectAssignment

Assigned

SSN

Proj#

SSN

Proj#Hours

Page 21: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 21

Note on drawing diagrams

• You will be asked to draw ER (or UML) diagrams for your personal database

• I prefer diagrams drawn with a drawing tool or DB Design tool

• There are loads of DB Design tools– See, e.g.,

http://www.databaseanswers.org/modelling_tools.htm

• One that integrates well with MySQL is MySQLWorkBench– http://www.mysql.com/products/workbench/

IS 257 – Fall 2014

Page 22: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 22IS 257 – Fall 2014

Lecture Outline

• Review– Information Systems Planning

• Information Systems Architecture• Information Engineering

– Database Design– ER Diagrams

• Developing the Conceptual Model for the Diveshop Database

Page 23: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 23IS 257 – Fall 2014

Developing a Conceptual Model• Overall view of the database that integrates all

the needed information discovered during the requirements analysis.

• Elements of the Conceptual Model are represented by diagrams, Entity-Relationship or ER Diagrams, that show the meanings and relationships of those elements independent of any particular database systems or implementation details.

• Can also be represented using other modeling tools (such as UML)

Page 24: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 24IS 257 – Fall 2014

Developing a Conceptual Model• Building the Conceptual Model for the

Diveshop database

Page 25: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 25IS 257 – Fall 2014

Developing a Conceptual Model• We will look at a small business -- a

diveshop that offers diving adventure vacations

• Assume that we have done interviews with the business and found out the following information about the forms used and types of information kept in files and used for business operations...

Page 26: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 26IS 257 – Fall 2014

Primary Business Operations

• The shop takes orders from customers for dive vacations.

• It ships information about the dive vacation to the customers.

• It rents diving equipment for the divers going on the trips (these may include additional people other than the customer)

• It bills the customer for the vacation and for equipment rental or sales.

Page 27: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 27IS 257 – Fall 2014

Business Operations (cont.)

• It arranges sub-trips to particular dive sites at the primary location– NOTE: This needs expanding – charter boats,

divemasters, local dive companies• It provides information about the features

of various sites to help customers choose their destinations.– Features include sea life found at the location

and shipwrecks

Page 28: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 28IS 257 – Fall 2014

Business Operations (cont.)

• Each dive order (or sale or trip) is on an invoice to one customer.– Invoices contain:

• Line items for each type of equipment ordered,• Total amount due for the invoice,• Customer information:

– Name, address, phone, credit card info.• Note: could be expanded with particular charter dates and

time, dive boats, etc.

• Information must be kept on inventory of dive equipment.

• There are multiple types of dive equipment:– The prices charged for sale or rental are maintained.

Page 29: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 29IS 257 – Fall 2014

Business Operations (cont.)

• Destination information includes:– Name of the destination– information about the location (accomodations, night

life, travel cost, average temperatures for different times of the year

• Destinations have associated dive sites.• Dive Sites have associated features

– Sea life – Shipwrecks– Note: could be expanded to include the boats, etc that

go to specific sites

Page 30: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 30IS 257 – Fall 2014

Business Operations (cont.)

• One record is kept for each order by a customer and will include the method of payment, total price, and location information. (I.e. Customers may have multiple orders)

• The company needs to know how an order is to be shipped.

• The shop has to keep track of what equipment is on-hand and when replacements or additional equipment is needed

Page 31: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 31IS 257 – Fall 2014

Entities

• Customer• Dive Order• Line item• Shipping information• Dive Equipment/ Stock/Inventory• Dive Locations

• Dive Sites• Sea Life• Shipwrecks

Page 32: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 32IS 257 – Fall 2014

Diveshop Entities: DIVECUST

Name

Customer no

Street

State/ProvCityZIP/Postal

Code

Country

First Contact

PhoneDiveCust

Page 33: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 33IS 257 – Fall 2014

Diveshop Entities: DIVEORDS

CustomerNo

Order no

SaleDate

ShipVia

DestinationCCExpDate

CCNumber

PaymentMethodDiveOrds

No ofPeople

VacationCost

ReturnDate

DepartDate

Page 34: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 34IS 257 – Fall 2014

Diveshop Entities: DIVEITEM

Item no

Order no

Rental/Sale

Qty

Line Note

DiveItem

Page 35: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 35IS 257 – Fall 2014

Diveshop Entities: SHIPVIA

Ship Via

ShipCost

ShipVia

Page 36: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 36IS 257 – Fall 2014

Diveshop Entities: DIVESTOK

Description

Item No

EquipmentClass

ReorderPoint

On Hand Cost

SalePrice

DiveStokRentalPrice

Page 37: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 37IS 257 – Fall 2014

Diveshop Entities: DEST

Destinationname

Destination no

Avg Temp (F)

SpringTemp (F) Avg

Temp (C)Summer Temp (C)

SummerTemp (F)

TravelCost

WinterTemp (C)

FallTemp (F)

FallTemp (C)Dest

WinterTemp (F)

Accommodations

Body ofWater

NightLife

SpringTemp (C)

Page 38: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 38IS 257 – Fall 2014

Diveshop Entities: SITES

Destinationno

Site no

Site Name

SiteNotes

SiteHighlight

DistanceFrom Town (M)

DistanceFrom Town (Km)

Skill Level

Visibility(ft)

Depth (m)

Depth (ft)Sites

Visibility (m)

Current

Page 39: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 39IS 257 – Fall 2014

Diveshop Entities: BIOSITE

SpeciesNo

SiteNo

BioSite

Page 40: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 40IS 257 – Fall 2014

Diveshop Entities: BIOLIFE

Category

Species no

CommonName

Length(cm)

SpeciesName

Length(in)

Notesexternal

GraphicexternalBioLife

Page 41: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 41IS 257 – Fall 2014

Diveshop Entities: SHIPWRCK

Site no

Ship Name

Category

InterestType Tonnage

Length (ft)

Beam(m)

Beam(ft)

Length(m)Shipwrck

Cause

Commentsexternal

DateSunk

Passengers/Crew

Graphicexternal

Survivors

Condition

Page 42: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 42IS 257 – Fall 2014

Functional areas

• Ordering• Inventory• Supplies• Shipping• Billing• Location/Site Selection

– We will concentrate on Ordering and Location/Site Selection (these are joined tasks)

Page 43: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 43IS 257 – Fall 2014

Ordering

Orders(DIVORDS)

Customer(DIVECUST)

Customers place OrdersEach Order needs Customer information

Page 44: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 44IS 257 – Fall 2014

Ordering

DiveOrdsOrdersDiveCust

Customer No ship

ShipVia

Order No

Ship Via

DiveItem Repeatingattribute

Customer No

Page 45: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 45IS 257 – Fall 2014

Ordering Normalization

DiveCust Orders

Customer No

DiveOrds

Ship

ShipVia

Order No

Ship Via

DiveItemContains

Item No

QtyOrder No

Customer No

Rental/sale

Page 46: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 46IS 257 – Fall 2014

Details of DiveItem

DiveStokSuppliesSupplier

Company# Has

DiveItem

Item No

Item No

On Hand

Sale Price

Order No

m n

We’re ignoring this part...

Page 47: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 47IS 257 – Fall 2014

Ordering: Full ER

CustomerNo

ShipVia

DestShipVia

DiveStok

DiveItem

DiveOrds

DiveCust

CustomerNo

ShipVia

OrderNo

OrderNo

ItemNo

ItemNo

DestinationName

Destination

Destinationno 1

1

1

1

1n

n

n

n

n

Page 48: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 48IS 257 – Fall 2014

Location/Site Selection

DestGoing

to?DiveOrds

DestinationNo

DestinationName

Destination

Page 49: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 49IS 257 – Fall 2014

Destination/ Sites

Dest

Sites

DiveOrds

CustomerNo

OrderNo

DestinationName

DestinationSite No

Destinationno

Destinationno

1

1

n

n

Page 50: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 50IS 257 – Fall 2014

Sites and Sea Life 1

BioLife

Sites

Site NoDestination

no

Multiple occurrencesof sea life...

Page 51: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 51IS 257 – Fall 2014

Diveshop ER diagram: BioSite

SpeciesNo

SiteNo

BioSite

Page 52: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 52IS 257 – Fall 2014

Sites and Sea Life 2

Sites

BioSite

BioLifeSpeciesNo

Site No

Site No

Destinationno

SpeciesNo

1

1

n

n

Page 53: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 53IS 257 – Fall 2014

Sites and Shipwrecks

Sites

ShipWrck

Site NoDestination

no

Site No

1/n

1

Page 54: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 54IS 257 – Fall 2014

DiveShop ER DiagramCustomer

No

ShipVia

Dest

Sites

BioSite

ShipVia

ShipWrck

BioLife DiveStok

DiveItem

DiveOrds

DiveCust

CustomerNo

ShipVia

OrderNo

OrderNo

ItemNo

ItemNo

DestinationName

Destination

SpeciesNo

Site No

Destinationno

Site No

Destinationno

SpeciesNo

Site No

1

1

1

1

1

1

1/n

1

1n

n

n

n

n

n

n

n

1

Page 55: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 55IS 257 – Fall 2014

What must be calculated?

• Total price for equipment rental?• Total price for equipment sale?• Total price of an order?

– Vacation price– Equipment (rental or sale)– Shipping

Page 56: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 56IS 257 – Fall 2014

What is Missing??

• Not really an “enterprise-wide” database– No personnel…

• Sales people• Dive masters• Boat captains and crew• payroll

– No Local arrangements…• Dive Boats

– Charter bookings?• Hotels?

– Suppliers/Wholesalers for dive equipment• Orders for new/replacement equipment

– No history (only current or last order)

Page 57: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 57IS 257 – Fall 2014

Diveshop database

• We will take a look at the the MySQL version of the DiveShop database using phpMyAdmin

Page 58: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 58IS 257 – Fall 2014

MySQL version of Diveshop

• MySQL version of the database is available for download through the class web site

• phpMyAdmin is a web-based interface for MySQL databases providing simple access and modification functions– Not really a full DB environment, but has

many useful features

Page 59: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 59IS 257 – Fall 2014

phpMyAdmin

• phpMyAdmin has been set up for iSchool MySQL database accounts

• It can be accessed at https://groups.ischool.berkeley.edu/pma/– Need to have I School login/pw and MySQL

login and pw• Quick Demo…

Page 60: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 60IS 257 – Fall 2014

Assignment 1 (also online)

• How many tons was the sunken ship Delaware?• What is customer Karen Ng’s address?• At what destinations and sites might you find a

Spotted Eagle Ray?• Where (what destination) is the site Palancar

Reef?• What sites might Lorraine Vega dive on her trip?• Keith Lucas wants to see a shipwreck on his trip.

Is he going to the right place?• What equipment is Richard Denning getting?• What is the cost of the equipment rental for

Louis Jazdzewski

Page 61: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 61IS 257 – Fall 2014

Assignment 1: cont.

• The Database is available on the course web site

• Download your own copy and install from phpMyAdmin (demo)

• For each of the questions create a query in phpMyAdmin (more on this later)

• Create a document (Word, etc.) containing– The query being answered– The results of your query cut and pasted from

phpMyAdmin• Due date Sept. 19

Page 62: 2014-09-04 - SLIDE 1IS 257 – Fall 2014 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2014-09-04 - SLIDE 62IS 257 – Fall 2014

Next Week

• Tuesday: – Workshop on SQL– Workshop on Personal/Group DBs


2011.03.16 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2013.04.10- SLIDE 1IS 240 – Spring 2013 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval Lecture

2011.01.31- SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval Lecture

2011.04.18- SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval Lecture

2006-09-07 - SLIDE 1IS 257 – Fall 2006 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2011.02.02 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2013.04.24 - SLIDE 1IS 240 – Spring 2013 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2005.11.17 - SLIDE 1IS 240 – Fall 2005 Prof. Ray Larson University of California, Berkeley School of Information Management & Systems Introduction to Probabilistic

2010.01.25 - SLIDE 1IS 240 – Spring 2010 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2002.08.29 - SLIDE 1IS 257 - Fall 2002 Database Design: Conceptual Model and ER Diagramming University of California, Berkeley School of Information Management

2005.10.11 - SLIDE 1IS 202 – FALL 2005 Prof. Ray Larson UC Berkeley SIMS SIMS 202: Information Organization and Retrieval Normalization & The Relational

2002.09.12 - SLIDE 1IS 202 - FALL 2002 Lecture 06: Controlled Vocabularies Introduction Prof. Ray Larson & Prof. Marc Davis UC Berkeley SIMS Tuesday and

2007.02.15 - SLIDE 1IS 240 – Spring 2007 Lecture 10: Inference and Belief Networks Prof. Ray Larson University of California, Berkeley School of Information

2009.04.20 - SLIDE 1IS 240 – Spring 2009 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2011.03.09 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2010.04.05 - SLIDE 1IS 240 – Spring 2010 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2006.04.25 - SLIDE 1IS 240 – Spring 2006 Prof. Ray Larson University of California, Berkeley School of Information Management & Systems Tuesday and Thursday

2011.02.09 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2010.03.17 - SLIDE 1IS 240 – Spring 2010 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2009.05.06 - SLIDE 1IS 240 – Spring 2009 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2010.02.10 - SLIDE 1IS 240 – Spring 2010 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2009.05.11 - SLIDE 1IS 240 – Spring 2009 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2009.04.27 - SLIDE 1IS 240 – Spring 2009 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2013.03.11 - SLIDE 1IS 240 – Spring 2013 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2011.01.19 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information

2011.04.04 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2004-09-08 - SLIDE 1IS 257 – Fall 2004 Database Design: Conceptual Model and ER Diagramming Ray R. Larson University of California, Berkeley School of

2011.02.28 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2013.01.30 - SLIDE 1IS 240 – Spring 2013 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2004.01.20 - SLIDE 1IS 257 – Spring 2004 Database Management: Introduction Ray R. Larson University of California, Berkeley School of Information Management

2010.04.19 - SLIDE 1IS 240 – Spring 2010 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2011.02.16 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2010.04.12 - SLIDE 1IS 240 – Spring 2010 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2011.02.07 - SLIDE 1IS 240 – Spring 2011 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval

2013.02.04- SLIDE 1IS 240 – Spring 2013 Prof. Ray Larson University of California, Berkeley School of Information Principles of Information Retrieval Lecture