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Abstracts - 12th Systems Administration Conference
(LISA '98)
Using Tcl to Rapidly Develop a Scalable Engine for Processing Dynamic Application Logic
Greg Barish
Healtheon Corporation
Abstract
At Healtheon, we used Tcl to rapidly develop a scalable, high
performance rule engine for processing dynamic application logic. The
nature of our application requirements, plus the challenge of
delivering robust software in a timely manner made Tcl an optimal
overall choice in our deployment. We were able to improve rule
processing performance by careful language construction and support
for concurrent execution. We developed a mechanism for implementing
data-driven language extensions, called rule concepts, which allowed
us to present a customized language for each client, and encouraged
rule reusability. Our experience with using Tcl in our application
system was also representative of software engineering choices that
small companies often make in pursuit of rapidly developing a
well-balanced system solution.
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