Talk:Advanced process control

Systems: Control theory Start‑class Mid‑importance

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A broad term

Advanced process control (APC) is a broad term of which multivariable control is a subset. You can have APC controllers that are not multivariable. -- Bala

You are right, APC is a much broader term (than for just petrochemical industries). Multivariable control is mostly included in APC, but not always. I update the page. Cjohnzen 14:22, 21 March 2006 (UTC)[reply]

OpenAPC is not "Open Source" software

From what I can gather from the license presented on the web site for this company, the software they sell is not open source in any sense. It seems to be a close-source commercial product. You should remove their link from the page. Rbh1976 (talk) 19:24, 5 April 2011 (UTC)[reply]