Test Bank for Systems Analysis and Design, 3rd Edition: Dennis

Product details:

• ISBN-10 ‏ : ‎ 0470074787
• ISBN-13 ‏ : ‎ 978-0470074787
• Author: Dr. Alan R. Dennis

You can’t truly understand Systems Analysis and Design (SAD) by only reading about it; you have to do it. In Systems Analysis and Design, Third Edition, Dennis, Wixom, and Roth offer a hands-on approach to actually doing SAD. Building on their experience as professional systems analysts and award-winning teachers, these three authors capture the experience of actually developing and analyzing systems. They focus on the core set of skills that all analysts must possess––from gathering requirements and modeling business needs, to creating blueprints for how the system should be built.

Table contents:

Part 1 Planning Phase

1 The Systems Analyst and Information Systems

Development, 3

Introduction, 4

The Systems Analyst, 6

Systems Analyst Skills, 6

Systems Analyst Roles, 7

The Systems Development Life Cycle, 8

Planning, 10

Analysis, 11

Design, 12

Implementation, 12

Project Identification and Initiation, 13

System Request, 15

Applying the Concepts at DrōnTeq, 16

Feasibility Analysis, 19

Technical Feasibility, 20

Economic Feasibility, 21

Organizational Feasibility, 27

Applying the Concepts at DrōnTeq, 29

Chapter Review, 31

Appendix 1A: Detailed Economic Feasibility

Analysis for DrōnTeq, 35

2 Project Selection and Management, 37

Introduction, 38

Project Selection, 39

Applying the Concepts at DrōnTeq, 40

Creating the Project Plan, 41

Project Methodology Options, 42

Selecting the Appropriate Development Methodology, 49

Contents

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xii Contents

Staffing the Project, 52

Staffing Plan, 52

Coordinating Project Activities, 55

Managing and Controlling the Project, 58

Refining Estimates, 58

Managing Scope, 60

Timeboxing, 60

Managing Risk, 61

Applying the Concepts at DrōnTeq, 62

Staffing the Project, 63

Coordinating Project Activities, 64

Chapter Review, 65

Part 2 Analysis Phase

3 Requirements Determination, 71

Introduction, 72

The Analysis Phase, 72

Requirements Determination, 74

What Is a Requirement?, 74

The Process of Determining Requirements, 78

The Requirements Definition Statement, 78

Requirements Elicitation Techniques, 80

Requirements Elicitation in Practice, 80

Interviews, 81

Joint Application Development (JAD), 88

Questionnaires, 92

Document Analysis, 94

Observation, 96

Selecting the Appropriate Techniques, 96

Requirements Analysis Strategies, 98

Problem Analysis, 98

Root Cause Analysis, 98

Duration Analysis, 100

Activity-Based

Costing, 100

Informal Benchmarking, 100

Outcome Analysis, 101

Technology Analysis, 101

Activity Elimination, 102

Comparing Analysis Strategies, 103

Applying the Concepts at DrōnTeq, 103

Eliciting and Analyzing Requirements, 103

Requirements Definition, 104

System Proposal, 104

Chapter Review, 106

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Contents xiii

4 Understanding Processes with Use Cases and Process

Models, 111

Introduction, 112

What Is a Use Case?, 113

The Use Case Concept in a Nutshell, 113

Use Case Formats and Elements, 114

Casual Use Case Format, 114

Use Cases in Sequence, 117

Applying Use Cases, 118

Use Case Practical Tips, 118

Use Cases and Functional Requirements, 119

Use Cases and Testing, 119

Creating Use Cases, 120

Identify the Major Use Cases, 120

Identify the Major Steps for Each Use Case, 122

Identify Elements within Steps, 125

Confirm the Use Case, 128

Revise Functional Requirements Based on Use Cases, 129

Applying the Concepts at DrōnTeq, 129

Identifying the Major Use Cases, 129

Elaborating on the Use Cases, 130

Data Flow Diagrams, 134

Reading Data Flow Diagrams, 134

Elements of Data Flow Diagrams, 136

Using Data Flow Diagrams to Define Business Processes, 139

Process Descriptions, 142

Creating Data Flow Diagrams, 144

Creating the Context Diagram, 145

Creating Data Flow Diagram Fragments, 146

Creating the Level 0 Data Flow Diagram, 148

Creating Level 1 Data Flow Diagrams (and Below), 149

Validating the Data Flow Diagrams, 152

Applying the Concepts at DrōnTeq, 156

Developing the Process Model, 156

Creating Data Flow Diagram Fragments, 156

Creating the Level 1 Data Flow Diagram, 157

Creating Level 2 Data Flow Diagrams (and Below), 159

Validating the Data Flow Diagrams, 160

Chapter Review, 161

5 Data Modeling, 169

Introduction, 170

The Entity Relationship Diagram, 170

Reading an Entity Relationship Diagram, 171

Elements of an Entity Relationship Diagram, 172

The Data Dictionary and Metadata, 177

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xiv Contents

Creating an Entity Relationship Diagram, 179

Building Entity Relationship Diagrams, 179

Advanced Syntax, 182

Applying the Concepts at DrōnTeq, 184

Validating an Entity Relationship Diagram, 188

Design Guidelines, 188

Normalization, 191

Balancing Entity Relationship Diagrams with Data Flow Diagrams, 191

Chapter Review, 193

Appendix 5A: Normalizing The Data Model, 196

6 Moving into Design, 201

Introduction, 202

Transition from Requirements to Design, 202

System Acquisition Strategies, 204

Custom Development, 206

Packaged Software, 207

Outsourcing, 208

Influences on the Acquisition Strategy, 211

Business Need, 211

In-House

Experience, 212

Project Skills, 213

Project Management, 213

Time Frame, 213

Selecting an Acquisition Strategy, 213

Alternative Matrix, 214

Applying the Concepts at DrōnTeq, 216

Chapter Review, 218

Part 3 Design Phase

7 Architecture Design, 223

Introduction, 224

Elements of an Architecture Design, 224

Architectural Components, 224

Client–Server Architectures, 225

Client–Server Tiers, 226

Server-Based

Architecture, 228

Mobile Application Architecture, 229

Advances in Architecture Configurations, 230

Comparing Architecture Options, 231

Creating an Architecture Design, 232

Operational Requirements, 232

Performance Requirements, 233

Security Requirements, 235

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Contents xv

Access Control Requirements, 237

Cultural and Political Requirements, 240

Designing the Architecture, 242

Hardware and Software Specification, 244

Applying the Concepts at DrōnTeq, 246

Creating an Architecture Design, 246

Hardware and Software Specification, 247

Chapter Review, 248

8 User Interface Design, 251

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