Configuration with R1/XCon (1978)
- Knowledge domain: Configuring VAX computers, to customers' specifications.
- Input: Required characteristics of the computer system.
- Output: Specification for the computer system.
- Inference engine: Forward chaining: the output specification was assembled in working memory.
- Knowledge representation: Production rules.
- DEC attempted to write a conventional program to do this task, with no
success, then invited McDermott to write an AI system to do it.
McDermott wrote R1/XCON.
By 1986, it had processed 80,000 orders, and achieved 95-98% accuracy.
It was reckoned to be saving DEC $25M a year.
- R1/XCON suffered from the shortcomings of simple production-rule-based
systems.Expensive rewriting was needed to restore the operation of the
- What other configuration tasks could RBSs be used for?