The Quaestor knowledge base file (*.QKB3) is the binary format for Quaestor knowledge bases.
This file contains all knowledge, thus:
Moreover, a knowledge base can contain "static" or generic data. With static data we mean data that is constant and can be seen as knowledge (information, data with a meaning).
Together with Quaestor, it makes the development platform for knowledge based systems.
Quaestor + Knowledge base = knowledge based system: A combination used by Knowledge Engineers.
Furthermore, it is the fundament for a Quaestor project file that contains al project specific data and solutions in the knowledge based system.
Quaestor + Knowledge base + Project = (knowledge based) application: A combination used by End-Users or Domain Experts.