i4ware – SDK is a closed-source software development package that can be used for the development of customized Enterprise Resource Planning (ERP) systems or other software solutions according to the precise requirements of the client. The software development package typically includes a set of tools, libraries, and application programming interfaces (APIs) that developers can use to create software that integrates with the SDK. Closed-source means that the source code of the SDK is not freely available for developers to modify or redistribute.