What are data design patterns?
Design patterns in software engineering are repeatable solutions to common software design requirements. A design pattern is an abstraction that does not translate directly into executable code. It is a problem-solving template that can be used as the foundation to design a solution.
How are design patterns different from programming idioms?
Idioms represent low-level patterns. In contrast to design patterns, which address general structural principles, idioms describe how to solve implementation-specific problems in a programming language, such as memory management in C++.