This talk explores three concepts of system in engineering: systems theory, systems approach, and systems engineering. They are exemplified in three dimensions of engineering: science, design, and management. Unifying the three system concepts is the idea of function: functional abstraction in theory, functional analysis in design, and functional requirements in management. Signifying what a sy...

Quantitative QFD (Q2FD) is an extension of conventional Quality Function Deployment (QFD). Q2FD incorporates quantitative requirements decomposition models into the QFD framework. It also rearranges conventional QFD matrices to facilitate quantitative capture and both forward and backward chaining of performance values. The rearranged matrices also allows full representation of QFD matrices wit...