A design pattern is defined as a proven solution to a recurring problem, serving as a conceptual template rather than a concrete solution. The document outlines the structure of a design pattern, which includes a name, context, problem description, forces, solution, consequences, and known uses. It emphasizes the universality of design patterns across various fields such as economics, social interaction, architecture, and software.

1. What is a Design Pattern?
“A proven solution for a (recurring) problem.”
But it’s not a concrete solution!
Rather a solution idea, scheme, or template.
Patterns are a universal principle:
• Economics (Etzioni, 1964)
• Social Interaction (Newell,Simon, 1972)
• Architecture (Alexander et. al., 1975)
• Software (General awareness from 1990’s on)
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2. Pattern format
• Name: A catchy name for the pattern
• Context: The situation where the problem occurs
• Problem: General Problem Description
• Forces: Requirements and Constraints - Why does the problem
hurt in this context?
• Solution: Generic Description of a proven solution.
Static Structures, Dynamic Behaviour, Actionable Steps
• Consequences (Rationale, Resulting Context):
• What are the benefits and drawbacks? Pro and Contra?
• What are the liabilities, limitations and tradeoffs?
• How are the forces resolved?
• Known-Uses: Real Life Examples
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3. The Design Pattern House
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Context
Problem Solution
Forces Consequences
Known Uses
Name
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