this invention provides a system and a method for online , web - based point of sale building and configuration , which can assist non - expert business operators in building , editing and testing a point of sale system to manage their businesses . the business operations range from a single branch to a large chain of stores or branches . the key advantages of the web - based pos builder are that it is completely built on the foundation of the web . the pos builder is accessible anywhere in the world . it can be used by a person of any skill level . the pos builder builds , edits , and tests new pos terminals in real time .