Separation of Concerns · WebGlossary.info · Uncover Your Unknowns in Web Development

A design principle for separating a computer program into distinct sections such that each section addresses a separate concern. A concern is a set of information that affects the code of a computer program. A concern can be as general as the details of the hardware for an application, or as specific as the name of which class to instantiate. A program that embodies SOC well is called a modular program. Modularity, and hence separation of concerns, is achieved by encapsulating information inside a section of code that has a well-defined interface. Layered designs in information systems are another embodiment of separation of concerns (e.g., presentation layer, business logic layer, data access layer, persistence layer). Separation of concerns results in more degrees of freedom for some aspect of the program’s design, deployment, or usage. ← Wikipedia