Simplicity Above Patterns

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Simplicity Above Patterns
Contributors Christian Köppe
Last modification May 16, 2017
Source Köppe (2011)[1][2]; Köppe (2013)[3]
Pattern formats OPR Alexandrian
Usability
Learning domain
Stakeholders

Also Known As: Keep It Simple


Keep It Simple-alx.png


You want to make sure that the students do not add unnecessary complexity through blindly applying design patterns.

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While learning design patterns students want to show that they understand design patterns by implementing as many patterns as possible. Most often this adds unnecessary complexity without adding value.


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Therefore: Motivate the students to always give a rationale for all design patterns they have used. Make sure that they only apply a design pattern when they have not only examined the design problem at hand, but also the consequences of applying the pattern. The application of the pattern should add value to the overall design.


This pattern is considered as true invariant for the teaching of patterns of all domains, as the tendency of applying patterns excessively after being introduced to them can be found in nearly all domains.

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Example

References

  1. Pattern first published in Köppe, C. (2011). A pattern language for teaching design patterns (part 1). In Proceedings of the 16th European Conference on Pattern Languages of Programs (EuroPLoP 2011) (p. 2). New York:ACM.
  2. Patlet published in Köppe, C. (2011). A pattern language for teaching design patterns (part 2). In Proceedings of the 18th Conference on Pattern Languages of Programs (PLoP 2011). New York:ACM.
  3. Pattern also published in Köppe, C. (2013). A Pattern Language for Teaching Design Patterns. In Transactions on Pattern Languages of Programming III (pp. 24-54). Springer Berlin Heidelberg.