Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 15, Problem 15.2E
Suggest why the cost savings from reusing existing software are not simply proportional to the size of the components that are reused.
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What exactly does it mean to build software incrementally?
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- A system administrator's responsibility is to keep production software safe from updates. Due to the shortened SDLC of the updated software, rapid enhancements are required. These enhancements need approval before they may be implemented. Production downtime will be minimized thanks to four measures implemented before updates are implemented.arrow_forwardIt is the responsibility of a system administrator to ensure that upgrades to software do not render previously installed versions inoperable. Since the new software has a very short software development life cycle (SDLC), it has to have improvements made to it as quickly as possible. Certain modifications need prior clearance. The length of time that production must halt in order for changes to be implemented will be cut in half as a result of four initiatives.arrow_forwardExplain why it is important that software products are developed and delivered quickly. Why is it sometimes sensible to deliver an unfinished product and then issue new versions of that product after delivery? Scrum has been designed for use by a team of 5-8 people working together to develop a software product. a) What problems might arise if you try to use Scrum for student team projects where a group work together to develop a program. b) What parts of Scrum could be used in this situation?arrow_forward
- The phrase "software maintenance" refers to any changes made to a software product after it has been delivered in order to enhance its performance or any other characteristics.arrow_forwardA system administrator's responsibility is to keep production software safe from updates. This newer version of software has a short software development life cycle (SDLC) and so has to be enhanced rapidly. These enhancements need to be authorized before they can be implemented. Prior to the rollout of updates, four measures will reduce production downtime.arrow_forwardWhat choices do you have for the expansion of existing systems?What are the conditions under which it is more cost-effective to replace the whole system rather than regularly updating the software?arrow_forward
- How does a software product's lifecycle influence its support and maintenance strategies?arrow_forwardThe techniques used to enhance software quality are listed and explained.arrow_forwardWhat future possibilities do you have for legacy system development? When is it more economical to replace a whole system than to maintain existing software?arrow_forward
- Does this imply that software engineers must deliver maintainable code even if their employers do not require it?arrow_forwardWhy is it impossible to avoid change in complex systems? What are some examples of software process activities that assist foresee changes and make the software being built more robust to change?arrow_forwardDespite the common perception that software is plagued by flaws, the aerospace industry has been developing vital software for aircraft with an impressively low incidence of failure. Just what does it take to make sure that critical software is built without flaws?arrow_forward
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9.1.2 Software Development Approaches; Author: EIToppo;https://www.youtube.com/watch?v=Z9znuSQ7Sz8;License: Standard YouTube License, CC-BY