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An application programming interface (API) is a connection between computers or between computer programs. It is a type of software interface , offering a service to other pieces of software . [ 1 ]
In computer science, control flow (or flow of control) is the order in which individual statements, instructions or function calls of an imperative program are executed or evaluated. The emphasis on explicit control flow distinguishes an imperative programming language from a declarative programming language.
In software engineering, inversion of control (IoC) is a design principle in which custom-written portions of a computer program receive the flow of control from an external source (e.g. a framework). The term "inversion" is historical: a software architecture with this design "inverts" control as compared to procedural programming.
An application programming interface is a form of interface for a software system, in that it describes how to access the functions and services provided by a system via an interface. If a system producer wants others to be able to use the system, an ICD and interface specs (or their equivalent) is a worthwhile investment.
Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks. [1] [2] It involves designing and implementing algorithms, step-by-step specifications of procedures, by writing code in one or more programming languages.
IT application or program controls are fully automated (i.e., performed automatically by the systems) and designed to ensure the complete and accurate processing of data, from input through output. These controls vary based on the business purpose of the specific application.
Application frameworks often combine dependency injection with inversion of control. Under inversion of control, the framework first constructs an object (such as a controller), and then passes control flow to it. With dependency injection, the framework also instantiates the dependencies declared by the application object (often in the ...
It is the application's dynamic data structure, independent of the user interface. [14] It directly manages the data, logic and rules of the application. In Smalltalk-80, the design of a model type is left entirely to the programmer. [15] With WebObjects, Rails, and Django, a model type typically represents a table in the application's database.