Solutions_09 - Systems Analysis and Design in a Changing...

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Systems Analysis and Design in a Changing World, Fourth Edition 9-1 Chapter 9 – Moving to Design Solutions to End-of-Chapter Material Review Questions 1. What is the primary objective of systems design? The primary purpose of systems design is to develop a structure or roadmap that can be used for programming. Systems design takes the requirements that were defined in analysis and organizes them in a way that allows programming to occur. 2. What is the difference between analysis and design? List the activities of the design phase of the SDLC. Analysis is for discovery and understanding. Its purpose is to develop requirements. Design is for structuring and developing a solution. While analysis looks at problem issues and the problem domain, design looks at solution issues and the solution system. The activities of the design phase of the SDLC include: Design and integrate the network. Design the application architecture. Design the user interfaces. Design the system interfaces. Design and integrate the database. Prototype for design details. Design and integrate the system controls. 3. Why is project management so critical during the design phase? What tools can a project manager use during the design phase? As design moves forward, the development teams begin to generate a tremendous amount of detailed information about the system. Project management and coordination is needed to plan the design and to keep track of all of these pieces of information. The most common technique for recording and tracking project information is to use a CASE tool. Most CASE tools have a central repository to capture information. Tracking open items and unresolved issues is an especially difficult part of project development. Keeping an open items control log can help with this task.
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Systems Analysis and Design in a Changing World, Fourth Edition 9-2 4. Explain the difference between centralized architecture and distributed architecture. Centralized architecture locates all computing resources in a central location. Distributed architecture deploys computing resources in multiple locations connected by a computer network. 5. Explain the difference between clustered architecture and multicomputer architecture in a centralized system. Clustered architecture is a group of computers of the same type that share processing load and act as a single large computer system. Multicomputer architecture is a group of dissimilar computers that share processing load through specialization of function. 6. How are the Internet, intranets, and extranets similar? How are they different? All three are a collection of networks that are interconnected using TCP/IP (Transmission Control Protocol/Internet Protocol).
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Solutions_09 - Systems Analysis and Design in a Changing...

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