Context, Problem and Consequences First
| Context, Problem and Consequences First | |
| Contributors | |
|---|---|
| Last modification | January 17, 2017 |
| Source | Köppe (2011)[1]; Köppe (2013)[2] |
| Pattern formats | OPR Alexandrian |
| Usability | |
| Learning domain | |
| Stakeholders | |
Also Known As: First Things First, Focus Beyond the Solution
After an initial introduction to patterns, the students will be required to apply them as well. The application requires the choice for a pattern and the application of its solution. You now want to show students how to start applying patterns in a correct way.
Students who start to learn patterns often go straight to the solution and apply it, hastily skipping the problem, context, forces, and consequences parts of the pattern.
Therefore: Focus first on the problem, context, and forces parts of a pattern. Make sure the students understand the need for a good solution. Then introduce the solution and the consequences of applying the pattern.
We consider this pattern a true invariant, as independent of the domain a specific pattern should only be applied after all relevant information has been gathered and analysed.
References
- ↑ Patlet first 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. ACM:New York.
- ↑ Pattern 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.