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{{Short description|Decision tracking and managing method}}
[[File:A sample Design Structure Matrix (DSM).png|framed|right|A sample DSM with 7 elements and 11 dependency marks.]]
The '''design structure matrix''' ('''DSM'''; also referred to as '''dependency structure matrix''', '''dependency structure method''', '''dependency source matrix''', '''problem solving matrix
It is the equivalent of an [[adjacency matrix]] in [[graph theory]], and is used in [[systems engineering]] and [[project management]] to model the structure of complex systems or processes, in order to perform system analysis, project planning and organization design. Don Steward coined the term "design structure matrix" in the 1960s,<ref>D. V. Steward: ''The Design Structure System: A Method for Managing the Design of Complex Systems.'' In: ''IEEE Transactions on Engineering Management.'' 28(3), 1981, S. 71-74.</ref> using the matrices to solve mathematical systems of equations.
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The use of DSM has been extended to visualize and optimize the otherwise invisible information flow and interactions associated with office work. This visualization via DSM allows the Lean Body of Knowledge to be applied to office and information intensive flows.<ref>{{cite book|title=Far From the Factory: Lean for the Information Age|year=2010|publisher=Productivity Press|___location=New York|isbn=978-1420094565|pages=159–180}}</ref>
A customisation of MDM has been illustrated in <ref>{{cite journal |last1=Cardenas |first1=IC |last2=Kozine |
==References==
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*DSM book: http://mitpress.mit.edu/books/design-structure-matrix-methods-and-applications
*{{cite book
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| last2 = Reich
| first2 = Yoram
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