Knowledge Interchange Format — формальный язык для представления знаний, чтобы компьютерные системы могли обмениваться ими и рассуждать на их основе. Он был разработан для выражения фактов, правил и логических утверждений в машиночитаемой форме.
A computer language designed to enable systems to share and reuse information from knowledge-based systems. KIF is similar to frame languages such as KL-ONE and LOOM but unlike such language its primary role is not intended as a framework for the expression or use of knowledge but rather for the interchange of knowledge between systems. The designers of KIF likened it to PostScript. PostScript was not designed primarily as a language to store and manipulate documents but rather as an interchange format for systems and devices to share documents. In the same way KIF is meant to facilitate shari