In a comment to my posting yesterday, James McGovern proposed an answer to this question that was somewhat different to my attempt but observed that the interesting question is what others in the industry believe.
He suggested I throw this open to my wider readership.
So, is there a difference between "interoperability" and "integration"? If so, what is it? Can you provide crisp examples?
Comments, as ever, are open
[2006-02-07: Update] IBM's Bobby Woolf has some additional thoughts here.