Some things to document about each piece would be:

• What is the name of the component, and any other previous or alternate names
• Where did it come from - is it an updated version of previous technology that people may be familiar with?
• What does it do? Either on it's own or as part of the full process.
• Does it come free with support & maintenance, or is there an extra charge.
• Links or attachements of any documentation

This Forum Link has some good starting information: OpenWorld Components explained

-- LisaBencic - 03 Dec 2003