Technical Report
System Qualities Ontology, Tradespace and Affordability (SQOTA) Project – Phase 4
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Systems Engineering and Systems Management Transformation
Report Number: SERC-2016-TR-101
Publication Date: 2016-02-10
Project:
Tradespace and Affordability
Principal Investigators:
Dr. Barry Boehm
Co-Principal Investigators:
Dr. Tommer Ender
Dr. David Jacques
Dr. Jo Ann Lane
Dr. Raymond Madachy
Dr. Adam Ross
Dr. Kevin Sullivan
Dr. Gary Witus
Dr. Michael Yukish
This task was proposed and established as a result of a pair of 2012 workshops sponsored by
the DoD Engineered Resilient Systems technology priority area and by the SERC. The
workshops focused on how best to strengthen DoD’s capabilities in dealing with its systems’
non-functional requirements, often also called system qualities, properties, levels of service,
and –ilities. The term –ilities was often used during the workshops, and became the title of the
resulting SERC research task: “ilities Tradespace and Affordability Project (iTAP).” As the project
progressed, the term “ilities” often became a source of confusion, as in “Do your results include
considerations of safety, security, resilience, etc., which don’t have “ility” in their names?”
Also, as our ontology, methods, processes, and tools became of interest across the DoD and
across international and standards communities, we found that the term “System Qualities”
was most often used. As a result, we are changing the name of the project to “System Qualities
Ontology, Tradespace, and Affordability (SQOTA).” Some of this year’s university reports still
refer to the project as “iTAP.”