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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.
== Overview ==
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Time-based DSMs are typically analyzed using partitioning, tearing and sequencing algorithms.<ref name="DSMbook"/><ref>A. Karniel and Y. Reich, [https://link.springer.com/chapter/10.1007%2F978-0-85729-570-5_3 "Design process planning using DSM"], in Managing the Dynamics of New Product Development Processes: A New Product Lifecycle Management Paradigm, Springer, 2011 </ref>
'''Sequencing''' methods try to order the matrix elements such that no feedback marks remain.<ref name="DSMbook"/> In case of coupled activities (activities that have cyclic links, e.g., activity A is linked to B, which is linked to C, which is linked to A) the results is a block diagonal DSM (i.e., blocks or groups of coupled activities along the diagonal). Partitioning methods include:
'''Tearing''' is the removal of feedback marks (in Binary DSM) or assignment of lower priority (numeric DSM). Tearing of a Component-based DSM may imply modularization (the component design is not influencing other components) or standardization (the component design is not influencing and not influenced by other components).<ref name="DSMbook"/><ref>Sered Y, Reich Y (2006)," Standardization and modularization driven by minimizing overall process effort." Computer-Aided Design, 38(5):405-416</ref> After tearing a partitioning algorithm is reapplied.
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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 |first2=I |title=Customizing an Approach to Analyze an Underspecified Socio-Technical System |journal=Engineering Management Journal |date=2025 |volume= |issue= |pages=1–20 |doi=10.1080/10429247.2025.2502690|doi-access=free }}{{Creative Commons text attribution notice|cc=by4|from this source=yes}}</ref> for the analysis of underspecified systems.
==References==
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*DSM book: http://mitpress.mit.edu/books/design-structure-matrix-methods-and-applications
*{{cite book
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