Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 4.9E
When emergency changes have to be made to systems, the system software may have to be modified before changes to the requirements have been approved. Suggest a model of a process for making these modifications that will ensure that the requirements document and the system implementation do not become inconsistent.
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When emergency changes have to be made to systems, the system software may have to be modified before changes to the requirements have been approved. Suggest a model of a process for making these modifications that will ensure that the requirements document and the system implementation do not become inconsistent.
Even before a change to the specifications has been approved, emergency system adjustments may need modifying the system software. Describe how to make these changes such that the requirements paper and the system implementation are not at odds.
Throughout the course of the system development process, it will be important to make a list of and provide a short explanation of a selection of the methodologies and approaches that were employed.
Chapter 4 Solutions
Software Engineering (10th Edition)
Ch. 4 - Identify and briefly describe four types of...Ch. 4 - Prob. 4.2ECh. 4 - Prob. 4.3ECh. 4 - Prob. 4.4ECh. 4 - Prob. 4.5ECh. 4 - Suggest how an engineer responsible for drawing up...Ch. 4 - Prob. 4.7ECh. 4 - Prob. 4.8ECh. 4 - When emergency changes have to be made to systems,...Ch. 4 - Prob. 4.10E
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- Any potential changes in system requirements that are identified or suggested after the design phase must ____________. a. go through a formal scope change process before work on them begins b. be evaluated in terms of how they might affect system performance c. require feasibility analysis d. all of the abovearrow_forwardThe overall emphasis of the __________ phase is on gathering data on the existing system, determining the requirements of the new system, considering alternatives within identified constraints, and investigating the feasibility of alternative solutions. a. investigation b. analysis c. design d. constructionarrow_forwardYou and your team have been hired to perform a system investigation for a fast food restaurant that wants to implement new tools and processes to improve its customer service. Currently, the restaurant has a poor reputation for not correctly filling customers orders and for taking too long to do it. Perform a functional decomposition to define the scope and basic requirements of such a system. Brainstorm some ideas to improve the situation, and choose one to pursue based on its technical, economic, legal, operational, and schedule feasibility.arrow_forward
- The primary tool for assessing the software marketplace to determine whether existing packages can meet the organization’s needs is the ____________ a. system investigation report. b. request for quotation. c. RFI. d. system design report.arrow_forwarda) In your opinion, at what point in time should users get training on a new system? b)which phase of the system life cycle is considered to be the most innovative and challenging? b) In which step of the SDLC life cycle does the cost of mistake correction decrease to its lowest point?arrow_forwardJustification and need for full system testing must be made clear.arrow_forward
- A system is in place to review proposed modifications, decide whether to accept them, manage them, and keep tabs on their progress. All changes must be reviewed and approved by the Change Control Board (CCB).What are the four ways in which effective change management might lead to a more favorable outcome?arrow_forwardSystem development activities often are grouped into larger categories called phases. This collection of phases is called the system development life cycle (SDLC). (а) List FOUR (4) phases of SDLC. (b) The final implementation activity is to change from the old system to the new system. This change can take place using one or more of the conversion strategies. Explain THREE (3) type of conversion strategies.arrow_forwardDefining a system model is a difficult and time-consuming undertaking. While creating even the most fundamental of models, what considerations need to be given priority?arrow_forward
- During the system development process, would it be required to identify and briefly explain the tools and methodologies used?arrow_forwardWithout systems analysis, there will be no system development, inadvertently without a proper system development plan for a new system or upgrade of an old system, the organisational growth may be hindered. Systems analysis is normally done by a person known as the systems analyst. The systems analyst role has been evolving and it encompasses many sub-units that makes it unique. The role of the systems analyst is changing every day. The title of systems analyst became critically important in the development and use of information systems. Systems analysis is part and parcel of the systems development life cycle (SDLC) in which you determine how a current information system in an organisation works. Systems analysis is done on all systems that want to perform optimally. It is applied in all fields, without restriction to computational technology. The two parts to the analysis are determining requirements and structuring requirements. The two parts are addressed as two separate steps,…arrow_forwardWithout systems analysis, there will be no system development, inadvertently without a proper system development plan for a new system or upgrade of an old system, the organisational growth may be hindered. Systems analysis is normally done by a person known as the systems analyst. The systems analyst role has been evolving and it encompasses many sub-units that makes it unique. The role of the systems analyst is changing every day. The title of systems analyst became critically important in the development and use of information systems. Systems analysis is part and parcel of the systems development life cycle (SDLC) in which you determine how a current information system in an organisation works. Systems analysis is done on all systems that want to perform optimally. It is applied in all fields, without restriction to computational technology. The two parts to the analysis are determining requirements and structuring requirements. The two parts are addressed as two separate steps,…arrow_forward
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