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Software reliability modeling: Where are we and where should we be going?
| Content Provider | Semantic Scholar |
|---|---|
| Author | Musa, Jalaludin Hj. |
| Copyright Year | 1979 |
| Abstract | It may be argued that software reliability metrics are needed, most importantly, because no field can really mature until it can be described in a quantitative fashion. However, there are also some very specific reasons for a quantitative approach to software reliability. One needs software liability figures in order to do a good job of system engineering: to examine the trade offs between reliability and cost and reliability and schedules, to determine what reliability figure optimizes overall life cycle costs, to plan allocation of resources, and to specify reliability to a contractor who is developing software for you. Another large area of application is project management, where software reliability measures are needed for progress monitoring, scheduling and investigation of managerial alternatives. The length of a test period and hence the overall length of a project is highly correlated with the reliability requirements for the project. Therefore, reliabilities are intimately tied up with schedules. Changes in resources available to the project affect both reliability and schedules and one can be exchanged for the other. Reliability metrics offer an excellent means of evaluating the performance of operational software and controlling changes to it. Since change usually involves a degradation of reliability, one may use reliability performance objectives as a means for determining when software changes can be allowed and perhaps even how large they can be. Finally, reliability is one of the important parameters that should be used in investigating the benefits (or lack of benefits) of proposed new software engineering technology. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820068865.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
