If the sequential stages are put into the form of design
equation, they usually become decoupled, because of
their ordered nature. But a stage can be uncoupled from
its immediately previous ones, implying that it can be a
parallel procedure to them. The information contained in
the design matrix can easily be exported to construct a
sequential functional diagram, which graphically
represents the sequential algorithm. Eppinger et al. [7]
also discusses the use of the matrix representation to
reveal the sequential nature of the design process.