- ISBN: 9781119138259 | 1119138256
- Cover: Loose-leaf
- Copyright: 11/17/2014
The 6th Edition of Systems Analysis and Design continues to offer a hands-on approach to SAD while focusing on the core set of skills that all analysts must possess. Building on their experience as professional systems analysts and award-winning teachers, authors Dennis, Wixom, and Roth capture the experience of developing and analyzing systems in a way that students can understand and apply.
With Systems Analysis and Design, 6th Edition, students will leave the course with experience that is a rich foundation for further work as a systems analyst.
Dr. Alan R. Dennis is a professor of internet systems at Indiana University. He has written over 60 journal articles and has published 4 books. He is the senior editor for the MIS Quarterly and also serves on the editorial board for the Journal of MIS, Association for MIS, Computer Mediated Communication and the International Journal of e-Collaboration.
Preface v
PART ONE PLANNING PHASE 1
CHAPTER 1 The Systems Analyst and Information Systems Development 2
Introduction 3
The Systems Analyst 4
Systems Analyst Skills 4
Systems Analyst Roles 5
The Systems Development Life Cycle 6
Planning 9
Analysis 9
Design 10
Implementation 10
Project Identification and Initiation 11
System Request 13
Applying the Concepts at Tune Source 15
Feasibility Analysis 18
Technical Feasibility 18
Economic Feasibility 19
Organizational Feasibility 25
Applying the Concepts at Tune Source 28
Chapter Review 30
Appendix 1A—Detailed Economic Feasibility Analysis for Tune Source 33
CHAPTER 2 Project Selection and Management 35
Introduction 36
Project Selection 37
Applying the Concepts at Tune Source 38
Creating the Project Plan 39
Project Methodology Options 40
Selecting the Appropriate Development Methodology 47
Estimating the Project Time Frame 49
Developing the Work Plan 50
Staffing the Project 55
Staffing Plan 55
Coordinating Project Activities 58
Managing and Controlling the Project 61
Refining Estimates 61
Managing Scope 63
Timeboxing 63
Managing Risk 64
Applying the Concepts at Tune Source 65
Staffing the Project 66
Coordinating Project Activities 69
Chapter Review 70
Appendix 2A—Th e Function Point Approach 73
Appendix 2B—Project Management Tools: The Gantt Chart and PERT Chart 78
Gantt Chart 78
PERT Chart 78
PART TWO ANALYSIS PHASE 81
CHAPTER 3 Requirements
Determination 82
Introduction 82
The Analysis Phase 83
Requirements Determination 85
What Is a Requirement? 85
The Process of Determining
Requirements 87
The Requirements Definition Statement 89
Requirements Elicitation Techniques 90
Requirements Elicitation in Practice 91
Interviews 91
Joint Application Development (JAD) 98
Questionnaires 102
Document Analysis 104
Observation 105
Selecting the Appropriate Techniques 107
Requirements Analysis Strategies 108
Problem Analysis 108
Root Cause Analysis 108
Duration Analysis 110
Activity-Based Costing 110
Informal Benchmarking 110
Outcome Analysis 111
Technology Analysis 111
Activity Elimination 112
Comparing Analysis Strategies 113
Applying the Concepts at Tune Source 113
Eliciting and Analyzing Requirements 113
Requirements Definition 114
System Proposal 114
Chapter Review 116
CHAPTER 4 Use Case Analysis 120
Introduction 120
What is a Use Case? 122
The Use Case Concept in a Nutshell 122
Use Case Formats and Elements 123
Casual Use Case Format 123
Use Cases in Sequence 126
Fully Dressed Use Case Format 126
Applying Use Cases 128
Use Case Practical Tips 129
Use Cases and Functional Requirements 129
Use Cases and Testing 129
Creating Use Cases 130
Applying the Concepts at Tune Source 144
Identifying the Major Use Cases 144
Elaborating on the Use Cases 145
Chapter Review 149
CHAPTER 5 Process Modeling 153
Introduction 153
Data Flow Diagrams 154
Reading Data Flow Diagrams 154
Elements of Data Flow Diagrams 156
Using Data Flow Diagrams to Define
Business Processes 158
Process Descriptions 162
Creating Data Flow Diagrams 162
Creating the Context Diagram 164
Creating Data Flow Diagram Fragments 165
Creating the Level 0 Data Flow Diagram 166
Creating Level 1 Data Flow Diagrams (and Below) 166
Validating the Data Flow Diagrams 173
Applying the Concepts at Tune Source 177
Creating the Context Diagram 177
Creating Data Flow Diagram Fragments 178
Creating the Level 0 Data Flow Diagram 178
Creating Level 1 Data Flow Diagrams (and Below) 178
Validating the Data Flow Diagrams 183
Chapter Review 184
CHAPTER 6 Data Modeling 187
Introduction 187
The Entity Relationship Diagram 188
Reading an Entity Relationship Diagram 188
Elements of an Entity Relationship Diagram 189
The Data Dictionary and Metadata 193
Creating an Entity Relationship Diagram 196
Building Entity Relationship Diagrams 196
Advanced Syntax 199
Applying the Concepts at Tune Source 200
Validating an Entity Relationship Diagram 203
Design Guidelines 203
Normalization 206
Balancing Entity Relationship Diagrams with Data Flow Diagrams 206
Chapter Review 208
Appendix 6A: Normalizing the Data Model 211
PART THREE DESIGN PHASE 217
CHAPTER 7 Moving into Design 218
Introduction 218
Transition from Requirements to Design 219
System Acquisition Strategies 221
Custom Development 223
Packaged Soft ware 224
Outsourcing 225
Influences on the Acquisition Strategy 228
Business Need 228
In-House Experience 229
Project Skills 229
Project Management 230
Time Frame 230
Selecting an Acquisition Strategy 230
Alternative Matrix 231
Applying the Concepts at Tune Source 233
Chapter Review 234
CHAPTER 8 Architecture Design 237
Introduction 237
Elements of an Architecture Design 238
Architectural Components 238
Client–Server Architectures 239
Client–Server Tiers 240
Server-Based Architecture 242
Mobile Application Architecture 243
Advances in Architecture Configurations 244
Comparing Architecture Options 245
Creating an Architecture Design 246
Operational Requirements 246
Performance Requirements 247
Security Requirements 249
Cultural and Political Requirements 254
Designing the Architecture 256
Hardware and Soft ware Specification 258
Applying the Concepts at Tune Source 260
Creating an Architecture Design 260
Hardware and Software Specification 261
Chapter Review 262
CHAPTER 9 User Interface Design 265
Introduction 266
The Usability Concept 266
Principles for User Interface Design 267
Layout 267
Content Awareness 269
Aesthetics 270
Usage Level 270
Consistency 272
Minimize User Effort 273
Special Issues of Touch Screen Interface Design 273
User Interface Design Process 274
Understand the Users 275
Organize the Interface 277
Define Standards 279
Interface Design Prototyping 280
Interface Evaluation/Testing 283
Navigation Design 286
Basic Principles 286
Menu Tips 287
Message Tips 289
Input Design 292
Basic Principles 292
Input Tips 294
Input Validation 296
Output Design 296
Basic Principles 296
Types of Outputs 298
Media 300
Applying the Concepts at Tune Source 301
Understand the Users 301
Organize the Interface 301
Define Standards 303
Interface Template Design 303
Develop Prototypes 305
Interface Evaluation/Testing 305
Chapter Review 306
CHAPTER 10 Program Design 311
Introduction 312
Moving from Logical to Physical
Process Models 312
The Physical Data Flow Diagram 312
Applying the Concepts at Tune Source 315
Designing Programs 316
Structure Chart 319
Syntax 320
Building the Structure Chart 322
Applying the Concepts at Tune Source 324
Design Guidelines 328
Program Specification 335
Syntax 335
Applying the Concepts at Tune Source 339
Chapter Review 341
CHAPTER 11 Data Storage Design 346
Introduction 347
Data Storage Formats 347
Files 348
Databases 350
Selecting a Storage Format 354
Applying the Concepts at Tune Source 356
Moving from Logical to Physical Data Models 357
The Physical Entity Relationship Diagram 357
Revisiting the CRUD Matrix 359
Applying the Concepts at Tune Source 360
Optimizing Data Storage 362
Optimizing Storage Efficiency 363
Optimizing Access Speed 364
Estimating Storage Size 369
Applying the Concepts at Tune Source 371
Chapter Review 373
PART FOUR IMPLEMENTATION PHASE 377
CHAPTER 12 Moving into Implementation 378
Introduction 378
Managing the Programming Process 379
Assigning Programming Tasks 379
Coordinating Activities 380
Managing the Schedule 381
Testing 381
Test Planning 382
Unit Tests 384
Integration Tests 386
System Tests 386
Acceptance Tests 386
Developing Documentation 388
Types of Documentation 389
Designing Documentation Structure 389
Writing Documentation Topics 391
Identifying Navigation Terms 392
Applying the Concepts at Tune Source 394
Managing Programming 394
Testing 394
Developing User Documentation 396
Chapter Review 397
CHAPTER 13 Transition to the New System 400
Introduction 400
Making the Transition to the New System 401
The Migration Plan 402
Selecting the Conversion Strategy 402
Preparing a Business Contingency Plan 406
Preparing the Technology 408
Preparing People for the New System 408
Understanding Resistance to Change 409
Revising Management Policies 410
Assessing Costs and Benefits 411
Motivating Adoption 412
Enabling Adoption: Training 415
Postimplementation Activities 418
System Support 418
System Maintenance 419
Project Assessment 421
Applying the Concepts at Tune Source 423
Implementation Process 423
Preparing the People 423
Postimplementation Activities 424
Chapter Review 424
CHAPTER 14 The Movement to Objects (Online Only) 427
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