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1. An LOB (line-of-business) is a general term that describes the products or services offered by a business or manufacturer. A company that manufactures solid state disk drives, for example, might claim their LOB is data storage.
2. An LOB application is one of the set of critical computer applications that are vital to running an enterprise. LOB applications are usually large programs that contain a number of integrated capabilities and tie into databases and database management systems.
3. In some large enterprise cultures, the term line-of-business (LOB) is used as a synonym for corporate division.