Editing Knowledge-based systems (section)

===Knowledge-based vs. expert systems===
{{see also|Expert system}}
The term "knowledge-based system" was often used interchangeably with "[[expert system]]", possibly because almost all of the earliest knowledge-based systems were designed for expert tasks. However, these terms tell us about different aspects of a system:
* ''expert'': describes only the task the system is designed for – its purpose is to aid replace a human expert in a task typically requiring specialised knowledge
* ''knowledge-based'': refers only to the system's architecture –  it represents knowledge explicitly, rather than as procedural code

Today, virtually all expert systems are knowledge-based, whereas knowledge-based system architecture is used in a wide range of types of system designed for a variety of tasks.