Use Cases Requirements in Context

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ISBN: 9780321154989 | 0321154983
Cover: Paperback
Copyright: 7/25/2003

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bull; An excellent introduction to this increasingly popular topic that assumes no prior knowledge of uses cases or requirements bull; Shows how use cases can be applied to solve the most challenging requirements issues faced daily in industry bull; Expanded coverage, including thorough treatment of iterative/incremental use case driven project management

Preface	p. xv
Preface to the First Edition	p. xix
The Trouble with Requirements	p. 1
First and Least of All ...	p. 1
What Is a Requirement?	p. 5
Functional Requirements	p. 9
Nonfunctional Requirements	p. 9
Requirements Gathering, Definition, and Specification	p. 10
The Challenges of Requirements Gathering	p. 12
Finding Out What the Users Need	p. 12
Documenting Users' Needs	p. 13
Avoiding Premature Design Assumptions	p. 13
Resolving Conflicting Requirements	p. 13
Eliminating Redundant Requirements	p. 14
Reducing Overwhelming Volume	p. 14
Ensuring Requirements Traceability	p. 14
Issues with the Standard Approaches	p. 15
User Interviews	p. 15
Joint Requirements Planning Sessions	p. 16
Contract-Style Requirements Lists	p. 17
Prototypes	p. 19
Those Troublesome Requirements	p. 20
Moving to Use Cases	p. 21
It's All About Interactions	p. 25
The Unified Modeling Language	p. 27
Nine Diagrams	p. 28
Extending the UML with Stereotyping	p. 34
Introducing Use Cases, Use Case Diagrams, and Scenarios	p. 35
The Goals of Use Cases	p. 36
How Use Case Diagrams Show Relationships	p. 38
The Use Case Template	p. 42
Paths and Scenarios	p. 46
Use Cases Apply Here	p. 49
Use Cases for Inquiry-Only Systems	p. 49
Use Cases for Requests for Proposals	p. 50
Use Cases for Software Package Evaluation	p. 50
Use Cases for Non-Object-Oriented Systems	p. 50
Applying Use Cases to the Requirements Problem	p. 51
A Use-Case-Driven Approach to Requirements Gathering	p. 53
Requirements Specification Tools	p. 53
Principles for Requirements Success	p. 53
Three Steps for Gathering Requirements	p. 55
The Role of the Mission, Vision, Values	p. 56
The Role of the Statement of Work	p. 57
The Role of the Risk Analysis	p. 57
The Role of the Prototype	p. 57
The Roles of Use Cases	p. 59
Use Cases Are Effective Communication Vehicles	p. 59
Use Cases Can Be Used for Functional and Nonfunctional Requirements	p. 59
Use Cases Help Ensure Requirements Traceability	p. 59
Use Cases Discourage Premature Design	p. 60
The Role of the Business Rules Catalog	p. 60
Managing Success	p. 62
The Facade Iteration	p. 63
Objectives	p. 63
Users	p. 64
Project Team	p. 64
Industry Experts	p. 65
IT Management Group	p. 65
User Management Personnel	p. 66
Owners of the Data	p. 66
Steps in the Facade Iteration	p. 67
Create the Mission, Vision, Values	p. 67
Identify and Review Existing Documentation and Intellectual Capital	p. 67
Get the Executive Sponsor's Unique Viewpoint	p. 69
Review the Business Process Definitions	p. 71
Identify the Users, Customers, and Related Groups	p. 71
Interview the Stakeholders	p. 72
Create a Stakeholders List	p. 73
Find the Actors	p. 73
Create the Use Case Survey (A List of Facade Use Cases)	p. 73
Collect and Document Nonfunctional Requirements	p. 74
Start the Business Rules Catalog	p. 81
Create a Risk Analysis	p. 81
Create a Statement of Work	p. 81
Begin Experimenting with User Interface Metaphors	p. 81
Begin User Interface Storyboards	p. 83
Get Informal Approval from the Executive Sponsor	p. 84
Tools	p. 84
The Use Case Diagram	p. 84
The Hierarchy Killer	p. 84
Use Case Name Filters	p. 86
Actor Filter	p. 86
Verb Filter	p. 87
Noun Filters	p. 88
Packages as Placeholders for Functionality	p. 89
Facade Filter	p. 89
Peer Review	p. 89
User Review	p. 90
Deliverables	p. 90
Roles	p. 90
Context	p. 91
Summary	p. 91
The Filled Iteration	p. 93
Objectives	p. 93
Steps	p. 94
Break Out Detailed Use Cases	p. 94
Create Filled Use Cases	p. 96
Add Business Rules	p. 101
Test the Filled Use Cases	p. 102
Put Some Things Off	p. 103
Tools	p. 104
The Stakeholder Interview	p. 104
IPA Filter	p. 104
White Space Analysis Filter	p. 105
Abstraction Filter	p. 105
Testing Use Cases with Scenarios	p. 105
Review	p. 105
Additional Use Cases	p. 106
Deliverables	p. 106
Roles	p. 106
Context	p. 107
Summary	p. 107
Focused Iteration	p. 109
Objectives	p. 109
What Are Focused Use Cases?	p. 110
Steps	p. 110
Merge Duplicate Processes	p. 110
Bring Focus to Each Use Case	p. 111
Manage Scope Changes During This Iteration	p. 112
Manage Risks and Assumptions	p. 113
Review	p. 113
Tools	p. 114
Surplus Functionality Filter	p. 114
Narrow the Focus of the System	p. 114
Identify Surplus Functionality Inside the Use Case	p. 115
Vocabulary Filter	p. 115
Deliverables	p. 116
Roles	p. 116
Context	p. 116
Summary	p. 117
Managing Requirements and People	p. 119
Introduction	p. 119
Waterfall Lifecycle Management	p. 120
Nell and the Coffee Shop	p. 121
Disadvantages of Waterfall	p. 123
Alternatives to Waterfall	p. 125
Rapid Application Development (RAD)	p. 125
Spiral	p. 126
Staged Delivery	p. 126
Holistic Iterative/Incremental (HI/I)	p. 127
Introducing the Holistic Iterative/Incremental Use-Case-Driven Project Lifecycle	p. 127
The Meaning of Iterative	p. 128
The Meaning of Incremental	p. 129
The Meaning of Holistic	p. 130
The Meaning of Adaptivity	p. 131
Complex Adaptive Systems	p. 132
Process	p. 133
Principles of the Holistic Iterative/Incremental Software Lifecycle	p. 135
Manage Requirements Not Tasks	p. 136
The Important Goals Are the Business Goals--Dates and Budgets	p. 137
Think Like a Businessperson--What Have You Done for Me Lately?	p. 138
Divide and Conquer	p. 138
Cut the Job into Programs and Projects	p. 141
Tie Everything Back to the Business	p. 144
Create Demonstrable Deliverables	p. 145
Learn the Art of "Good Enough" Quality	p. 145
The Pieces Will Be Smaller Than You Think	p. 146
Expect Negotiation, Not Specification	p. 146
Forget about Baselines and Sign-offs	p. 147
Estimate by Doing	p. 147
Calculate Return-on-Investment in a New Way Using Portfolios	p. 148
Requirements Traceability	p. 149
Tracing Back to Use Cases	p. 152
Analysis Model Traceability	p. 153
Design Model Traceability	p. 153
CRC Card Session Traceability	p. 154
Test Model Traceability	p. 154
User Interface Design Traceability	p. 154
Application Architecture Traceability	p. 154
Project Management Traceability	p. 155
Documentation and Training Traceability	p. 155
Product Marketing Traceability	p. 155
Security Traceability	p. 155
Release Planning	p. 155
Tracing Back to Nonfunctionals	p. 156
Tracing Back to Business Rules	p. 157
Structural Facts	p. 157
Action-Restricting and Action-Triggering Rules	p. 157
Calculations and Inferences	p. 157
Classic Mistakes	p. 159
Mistakes, Pitfalls, and Bruised Knees	p. 159
Classic Mistakes: Make Them and Move On	p. 160
The Case for Use Cases	p. 173
Why Did Use Cases Win?	p. 174
Use Cases Are Sensible to Businesspeople	p. 174
Use Cases Are Traceable	p. 175
Use Cases Are an Excellent Scoping Tool	p. 175
Use Cases Don't Use a Special Language	p. 175
Use Cases Allow Us to Tell Stories	p. 175
The Alternatives Are Awful	p. 176
Use Cases Beyond Software	p. 176
Service Use Cases	p. 176
Business Use Cases	p. 178
Summary	p. 181
Real Estate Management System	p. 183
Overview	p. 183
The Use Cases	p. 184
The Actors	p. 186
Technical Requirements and Business Rules	p. 187
Scope Decisions	p. 187
List of Use Cases	p. 190
Refining the Requirements	p. 212
Investment Returns Calculation	p. 213
Tightening Requirements	p. 215
Integrated Systems	p. 219
Overview	p. 219
Background	p. 219
Problem Description	p. 221
Solution Analysis	p. 222
Instant Messaging Encryption	p. 225
Overview	p. 225
The Use Cases	p. 226
Order a Product from a Catalog	p. 229
Bibliography	p. 235
Index	p. 237
Table of Contents provided by Ingram. All Rights Reserved.

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