Difference between revisions of "Software Engineering in the Systems Engineering Life Cycle"
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Revision as of 13:15, 1 December 2015
In the same way as most Systems Engineering development processes follow steps in a life-cycle, complex software system or subsystem also follow a life cycle.
Systems Engineering and Software Engineering Life-cycles
Like for most established engineering processes, the engineering of a software product consists of:
- analysis and design,
- construction
- testing,
- operation,
- maintenance, and eventually
- retirement or replacement.
In Part 3 of the SEBoK, SE and Management, there is discussion of SE life cycle models and processes, with special attention to the Vee and Iterative process models. Both models, with some modification, apply equally to the development of software products and systems.
Part 3 also discusses the IEEE standard on System Life Cycle Processes [IEEE 15288] which describes a set of processes that address the various phases of the SE life-cycle – for example:
- Project Planning,
- Requirements Analysis,
- Architectural Design,
- Implementation,
- Verification,
- Operation,
- Maintenance, and
- Disposal.
There is a corresponding IEEE standard on Software Life Cycle Processes [IEEE 12207], which describes a set of processes that address the various phases of the software life-cycle – for example, Requirements Analysis, Architectural Design, Detailed Design, Construction, Verification, Maintenance, Operation, and Disposal.
Software Engineering in a Systems Engineering Life cycle
When the software part of system is complex enough to be considered a subsystem, its life-cycle would be assimilated as part of the life-cycle of the entire system, with such activities as software requirements analysis, and software verification and validation embedded as part of the corresponding systems activities. Table 2 presents some of the models, methods and tools used in software engineering. The table is meant to illustrative and is not exhaustive or complete.
References
Works Cited
ISO/IEC/IEEE. IEEE Standard for Systems and Software Engineering —Software Life Cycle Processes, International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC), Institute of Electrical and Electronics Engineers. 12207-2008, 2008.
ISO/IEC/IEEE. 2015.Systems and Software Engineering - System Life Cycle Processes.Geneva, Switzerland: International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC), Institute of Electrical and Electronics Engineers. ISO/IEC/IEEE 15288:2015.
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