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Lecture Systems analysis and design methods (7/e): Chapter 13 – Whitten, Bentley

This chapter teaches you techniques for designing the overall information system application architecture with a focus on physical process models. Information application architecture and physical process modeling include techniques for distributing knowledge, processes, and communications to network locations in a distributed computing environment. | Chapter 13 Application Architecture and Modeling Chapter 13 – Application Architecture and Modeling Objectives Define an information system’s architecture in terms of the KNOWLEDGE, PROCESSES, and COMMUNICATION building blocks. Differentiate between logical and physical data flow diagrams, and explain how physical data flow diagrams are used to model an information system’s architecture. Describe centralized and distributed computing alternatives, including client/server and Internet-based computing options. Describe database and data distribution alternatives for system design. Describe user and system interface alternatives for system design. Describe various software development environments for information system design. Describe strategies for developing or determining architecture of an information system. Draw physical data flow diagrams for an information system’s architecture and processes. 13- Chapter 13 – Application Architecture and Modeling 13- Chapter 13 – . | Chapter 13 Application Architecture and Modeling Chapter 13 – Application Architecture and Modeling Objectives Define an information system’s architecture in terms of the KNOWLEDGE, PROCESSES, and COMMUNICATION building blocks. Differentiate between logical and physical data flow diagrams, and explain how physical data flow diagrams are used to model an information system’s architecture. Describe centralized and distributed computing alternatives, including client/server and Internet-based computing options. Describe database and data distribution alternatives for system design. Describe user and system interface alternatives for system design. Describe various software development environments for information system design. Describe strategies for developing or determining architecture of an information system. Draw physical data flow diagrams for an information system’s architecture and processes. 13- Chapter 13 – Application Architecture and Modeling 13- Chapter 13 – Application Architecture and Modeling Application Architecture Application architecture – a specification of the technologies to be used to implement information systems. The blueprint to communicate the following design decisions: The degree to which the information system will be centralized or distributed. The distribution of stored data. The implementation technology for software developed in-house. The integration of commercial off-the-shelf software. The technology to be used to implement the user interface. The technology to be used to interface with other systems 13- Chapter 13 – Application Architecture and Modeling Physical Data Flow Diagram (DFD) Physical data flow diagram (DFDs) – a process model used to communicate the technical implementation characteristics of an information system. Communicate technical choices and other design decisions to those who will actually construct and implement the system. Recall from Chapter 9 that DFDs are a type of process model. 13- .