The whys of electronic procurement are obvious. But the wheres of electronic procurement may not be quite so obvious, because E-procurement needs to be thought about in a way that is different from most other applications. For most applications, while there may be inputs coming from outside the company or data sent to the outside, the core of the application - the way we think of where it is -- lies well within the enterprise. With E-procurement the focus is on the transaction, which lies between two different organizations.