Because every knowledge base needs its own application programming interface (API) so that the applications can be built based on it, the purpose of our research is to design the API for NKI, and its abbreviation is KAPI.

• 每个知识库都需要有自己的编程界面，以便在知识库的基础上建立知识应用系统，本文的研究目的正是为NKI设计知识编程界面(Knowledge Application Programming Interface，简称KAPI)。