Published November 1999 in “Pharmaceutical Tecnology” was the the article “Using New Techniques for Reducing System Validation Time and Cost”. This article described an approach used in an Eli Lilly drug plant for validation of PLCs and an Intellution system where many similar but slightly different programs and pieces of manufacturing equipment were used.
Its an interesting and useful article because it proposes use of automation and white box techniques in the design and qualification of production equipment rather than a strict brute force black box approach.
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