6.3 Suspended Ceiling Design Process - Bilkent University

5. Schedule of assumptions to be made in the process.
In building design, several assumptions are made when related
information is not available. These assumptions are reviewed at some
point in the process in order to validate them. What assumptions have
been made and when they are to be reviewed are important for process
success. DSM makes these assumptions explicit. It identifies when
assumptions should be made and how they affect the overall process.
5.2.1.3 Concurrent Engineering
Concurrent engineering is increasingly becoming an area of interest in
building design management. From the DSM point of view, moving marks
above the diagonal closer to the diagonal enhances concurrent
engineering by minimizing the scope and duration of the potential iteration.
However, integrating important design decisions into the earlier phases,
which is another aim of concurrent engineering, also results in increased
amount of coupling and lengthened design time.
Concurrent work is often seen as a way to reduce cycle time but, if
concurrent activities are chosen arbitrarily without considering their
dependencies, this can lead to abundant iteration and increased cycle
time. Research has shown that there is an optimum amount of activity
overlapping beyond which additional is not useful (Krishnan et al., 1993).
DSM analysis can help to determine that optimum point.
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