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11.4.2 Assessing the Impacts of Uncertainty Propagation to System Requirements by Evaluating Requirement Connectivity
Author(s) -
Salado Alejandro,
Nilchiani Roshanak
Publication year - 2013
Publication title -
incose international symposium
Language(s) - English
Resource type - Journals
ISSN - 2334-5837
DOI - 10.1002/j.2334-5837.2013.tb03045.x
Subject(s) - decomposition , metric (unit) , computer science , requirements analysis , system requirements , architecture , reliability engineering , functional requirement , non functional requirement , system requirements specification , systems engineering , risk analysis (engineering) , engineering , software engineering , operations management , software , software system , business , geography , ecology , software construction , biology , programming language , operating system , archaeology
Although theoretically independent, requirements within a decomposition level of a system architecture are not isolated elements. For an existing design, a change of a requirement may endanger or facilitate fulfillment of other requirements within the same level of the decomposition. The present research suggests a requirement connectivity metric to evaluate the potential consequences that changing a requirement may have on a system with respect to fulfillment of other requirements. A particular aspect of the present research is the assumption that connectivity accounts only for requirements within the same decomposition level of an architecture, not for those flowing up or down the decomposition. The metric is used to evaluate different cases in which requirements are changed due to triggering of uncertain events during a project life‐cycle.