My Forms Based Billing Application for the Palm OS was designed to be used by construction companies. My program is intended to replace Job Sheets and hold relevant customer and part information that can be synced with a desktop database. A Job Sheet is a paper document that contains a list of parts.A contractor at the end of the day will fill in quantity of parts used and their individual price. The Job Sheet is then given to the secretary to be input into the database. A company will then print the bill and mail it to the customer. My application will eliminate errors from the secondary entry by the secretary and will improve the process by reducing cost and entry time by the contractor and secretary. The small size and ease of use of Palm devices are idea for a construction environment in which work location is constantly changing. The project was developed in CodeWarrior, Palms official development environment, and was programmed in a C style language and compiled for the Motorola 68328 processor.