Template Design
Template Design is a software design pattern that defines the skeleton of an algorithm in a base class, allowing subclasses to override specific steps without changing the algorithm's structure. It promotes code reuse and consistency by separating invariant parts from variant parts of a process. This pattern is commonly used in frameworks and libraries to provide customizable behavior while maintaining a fixed workflow.
Developers should learn Template Design when building systems with multiple similar algorithms that share a common structure but differ in specific implementations, such as in data processing pipelines, UI rendering, or report generation. It reduces code duplication and enhances maintainability by centralizing the algorithm's flow, making it ideal for frameworks where users need to plug in custom logic without altering the core process.