Applying Life Cycle Processes

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The concept of iteration is also applied to processes. Figure 2 below gives an example of iteration in life cycle processes. The processes in this example are further discussed in the System Definition KA.

Figure 2. Example of Iterations of Processes Related to System Definition (Faisandier 2012). Permission Granted by Sinergy'Com. All other rights are reserved by the copyright owner.

The comprehensive definition of a SoI is generally achieved using decomposition layers and system elements . Figure 3 presents a fundamental schema of a system breakdown structure.

Figure 3. Hierarchical Decomposition of a System-of-Interest (Faisandier 2012). Permission Granted by Sinergy'Com. All other rights are reserved by the copyright owner.

In each decomposition layer and for each system, the System Definition processes are applied recursively because the notion of "system" is in itself recursive; the notions of SoI, system, and system element are based on the same concepts (see Part 2). Figure 4 shows an example of the recursion of life cycle processes.

Figure 4. Recursion of Processes on Layers (Faisandier 2012). Permission Granted by Sinergy'Com. All other rights are reserved by the copyright owner.

References

Works Cited

Collins English Dictionary, s.v. "Ontology." 2011.

Faisandier, A. 2012. Systems Architecture and Design. Belberaud, France: Sinergy'Com.

INCOSE. 2012. Systems Engineering Handbook: A Guide for System Life Cycle Processes and Activities, version 3.2.2. San Diego, CA, USA: International Council on Systems Engineering (INCOSE), INCOSE-TP-2003-002-03.2.2.

ISO/IEC. 2003. Systems Engineering — A Guide for The Application of ISO/IEC 15288 System Life Cycle Processes. Geneva, Switzerland: International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC), ISO/IEC 19760:2003 (E).

ISO/IEC/IEEE. 2015. Systems and Software Engineering -- System Life Cycle Processes. Geneva, Switzerland: International Organisation for Standardisation / International Electrotechnical Commissions / Institute for Electrical and Electronics Engineers. ISO/IEC/IEEE 15288:2015.

ISO. 2007. Systems Engineering and Design. Geneva, Switzerland: International Organization for Standardization (ISO). ISO 10303-AP233.

Oliver, D., T. Kelliher, and J. Keegan. 1997. Engineering Complex Systems with Models and Objects. New York, NY, USA: McGraw-Hill.

Primary References

INCOSE. 2012. Systems Engineering Handbook: A Guide for System Life Cycle Processes and Activities, version 3.2.2. San Diego, CA, USA: International Council on Systems Engineering (INCOSE), INCOSE-TP-2003-002-03.2.2.

ISO/IEC/IEEE. 2015. Systems and Software Engineering -- System Life Cycle Processes. Geneva, Switzerland: International Organisation for Standardisation / International Electrotechnical Commissions. ISO/IEC/IEEE 15288:2015.

Additional References

Bell Telephone Laboratories. 1982. Engineering and Operations in the Bell System. Murray Hill, NJ: Bell Telephone Laboratories.

Fortescue, P.W., J. Stark, and G. Swinerd. 2003. Spacecraft Systems Engineering. New York, NY, USA: J. Wiley.



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