What is IEF?

IEF, which can stand for Information Engineering Facility, was a CASE (Computer-Aided Software Engineering) toolset developed by Texas Instruments and later marketed by Sterling Software and Computer Associates (CA). It was used for developing business applications, particularly in the mainframe environment. IEF was based on a structured methodology and generated code for various platforms, including IBM mainframe, client-server, and others. The goal was to automate much of the application development lifecycle, from analysis and design to code generation and maintenance. It's less common today as other technologies have surpassed it.