Enterprise Resource Planning Software or ERP doesn't live up to its acronym. Forget about planning- it doesn't do much of that- and forget about resource, a throwaway term. But remember the enterprise part. This is ERP's true ambition. It attempts to integrate all departments and functions across a company onto a single computer system that can serve all those different departments' particular needs. That is a tall order, building a single software program that serves the needs of people in finance as well as answering the needs of the people in human resources and in the warehouse. Each of those departments typically has its own computer system optimized for the particular ways in which the department does its work. But ERP combines them all together into a single, integrated software program that runs off a single database so that the various departments can more easily share information and communicate with one another.