|SILICON VALLEY ONE
States of America
Software Engineering Consulting
Technology Research Services
Web Site Glossary
This web page is dedicated to providing information
and news on the CLIPS rule-based language developed by NASA's
Johnson Space Center.
CLIPS is a rule-based language that
was developed by NASA's Johnson Space Center. The
language is available free-of-charge with source
code from numerous Web sites. Several of the
more popular download sites are provided below.
NASA CLIPS Resources
CLIPS Repository - Downloads
||Provides a repository of
CLIPS versions, patches, and references.
||Information, source code,
binaries, latest patches, CLIPS links...
Production System - Thesis in HTML format
document discusses how to parallelize a
CLIPS-like rule-based language with a set
of relevant research references at the
end of the document. It also provides a
nice overview of expert systems and how
the Rete pattern matching algorithm works
|One of the more popular
commercial rule-based languages of the late 1980s is
now online for free: forward chaining and backward
chaining. PPS was the research that led to
OPS-2000. This software was not based on
CLIPS. This was Frank Lopez's fourth RETE-based
language: his final masterpiece.
NEW CLIPS Releases
Since 1986, Gary Riley, Brian
Donnell, and the rest of the NASA CLIPS team have
driven the delivery of all CLIPS releases from
CLIPS 2.0 to CLIPS 6.0.
This web page is maintained by Frank
After designing and developing CLIPS
1.0 in 1985 for NASA, Mr. Lopez created several
other rule-based languages.
CLIPS 1.0 was created in the Spring of 1985 while
Mr. Lopez was a NASA CO-OP employee.
NASA, Johnson Space
Center, Houston, Texas, 1985
NASA CLIPS 1.0 was
created on the second floor of
NASA's Mission Control Center
building in Houston. It was
literally created within 30 feet
of the Mission Control consoles
you see on television, or may
have seen in person if you have
visited the Johnson Space Center
The first CLIPS rule
fired in March 1985 on an HP 9000
The first real
program coded using CLIPS was
developed by the Purdue
University Electrical Engineering
department in 1985.
The first proposed
name for NASA CLIPS was
"NAIL" (NASA's AI
Mr. Lopez is the founder of Silicon
Valley One, Online
Planet, Intellipro International (TM), as well
as a NASA Alumni, Microsoft Alumni, and Oracle