SDK (Software Development Kit)

An SDK is a comprehensive set of tools that a developer uses to create applications for a specific platform, operating system, or programming language. It acts as a ready-made toolkit, containing everything from code libraries and documentation to debugging tools and sample code. Instead of building every function from scratch, a developer can use an SDK to integrate a specific service or feature into their application quickly and efficiently.

Example: A developer is building a new mobile app and wants to use a third-party service for user authentication. Instead of writing all the complex login logic themselves, they can download the service's SDK. This SDK would contain a pre-built login component, documentation explaining how to set it up, and sample code showing how to integrate it into the app. The developer would use these tools to connect their app to the authentication service, allowing them to quickly implement a secure and reliable login feature.