Final answer:
Gamma et al. defined design patterns as solutions to problems in specific contexts, consisting of a pattern name, problem description, solution details, and consequences.
Step-by-step explanation:
Gamma et al. introduced the concept of design patterns in their seminal book, Design Patterns: Elements of Reusable Object-Oriented Software. They suggested that a design pattern must consist of four essential elements that define a solution to a problem in a specific context. These four elements are:
- Pattern Name: A handle that describes the pattern succinctly.
- Problem: Explains when to apply the pattern by describing specific design issues and objectives.
- Solution: Describes the elements that make up the design, their relationships, responsibilities, and collaborations.
- Consequences: Details the results, side effects, and trade offs of using the pattern.
SUMUP of the final answer:
- Pattern Name
- Problem
- Solution
- Consequences