20 essentials of business information systems chapter

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Unformatted text preview: able systems in a very short period of time • Joint application design (JAD) • End users and information systems spets working together on design 11.20 Essentials of Business Information Systems Chapter 11 Building Information Systems Modeling and Designing Systems • Structured methodologies • Data flow diagram • Process specifications • Structure chart • Object-oriented development • Based on concepts of class and inheritance • Component-based development and Web services • Computer-aided software engineering (CASE) 11.21 Essentials of Business Information Systems Chapter 11 Building Information Systems Modeling and Designing Systems Data Flow Diagram for Mail-in University Data Registration System Registration Figure 11-6 The system has three processes: Verify availability (1.0), Enroll student (2.0), and Confirm registration (3.0). The name and content of each of the data flows appear adjacent to each arrow. There is one external entity in this system: the student. There are two data stores: the student master file and the course file. 11.22 Essentials of Business Information Systems Chapter 11 Building Information Systems Modeling and Designing Systems High-Level Structure Chart for a Payroll System This structure chart shows the highest or most abstract level of design for a payroll system, providing an overview of the entire system. Figure 11-7 11.23 Essentials of Business Information Systems Chapter 11...
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