OPC - OLE (Object Linking and Embedding) for Process Control :: The Industrial Interoperability Standard
Automation, Control & Plant Intelligence - Articles, Analysis, Reviews, Interviews & Views
Commercial off-the-shelf (COTS) is commercially available products that are purchased and integrated with little configuration.
Very popular as reduces Integration Cost and Time.
Commercial off-the-shelf (COTS) is a term for software or hardware, generally technology or computer products, that are ready-made and available for sale, lease, or license to the general public.
They are often used as alternatives to in-house developments.
Most existing open source software is COTS, as it is licensed to the public