List and explain the main steps in the systems development life cycle (SDLC)
What will be an ideal response?
The term systems development life cycle (SDLC) describes the life of an information system from conception to retirement. The SDLC has four primary phases:
1. Systems planning and selection: The first phase of the SDLC is systems planning and selection. An organization must take care that only those projects that are critical to enabling the organization's mission, goals, and objectives are undertaken. Consequently, the goal of systems planning and selection is simply to identify, plan, and select a development project from all possible projects that could be performed.
2. Systems analysis: The second phase of the SDLC is called systems analysis. One purpose of the systems analysis phase is for designers to gain a thorough understanding of an organization's current way of doing things in the area for which the new information system will be constructed. The process of conducting an analysis requires that many tasks, or subphases, be performed. The first subphase focuses on determining system requirements. To determine the requirements, an analyst works closely with users to determine what is needed from the proposed system. After collecting the requirements, analysts organize this information using data, process, and logic modeling tools.
3. Systems design: The third phase of the SDLC is systems design. It is during this phase that the proposed system is designed; that is, the details of the chosen approach are elaborated. As with analysis, many different activities must occur during systems design. The elements that must be designed when building an information system include the following: (1 ) human-computer interface, (2 ) databases and files, and (3 ) processing and logic.
4. Systems implementation and operation: Many separate activities occur during systems implementation, the fourth phase of the SDLC. One group of activities focuses on transforming the system design into a working information system. These activities include software programming and testing. A second group of activities focuses on preparing the organization for using the new information system. These activities include system conversion, documentation, user training, and support.
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Indicate whether the statement is true or false
Billie Jean's Bridals has total assets of $350,000, current assets of $74,000, total liabilities of $280,000, accounts receivable of $12,000, net sales of $64,000, and net profit after taxes of $23,000. Calculate the retailer's net profit percentage.
A. 31.1 percent B. 18.75 percent C. 20 percent D. 35.9 percent E. 25 percent
Approaches to enhancing differentiation through changes in the value chain do not include
A. coordinating with employees to create a greater incentive system to encourage worker productivity. B. coordinating with suppliers to speed up new product development cycles. C. coordinating with retailers to enhance the buying experience and building a company's image. D. collaborating with suppliers to improve many dimensions affecting product features and quality. E. coordinating with distributors or shippers to lower shipping costs.
In a Chapter 11 bankruptcy, the creditors committee is usually composed of:
A) The three largest secured and three largest unsecured creditors. B) The seven largest unsecured creditors and all secured creditors. C) The seven largest unsecured creditors. D) All unsecured creditors and the three largest secured creditors.