Unified Process (UP), by definition, is caused by the software engineering process combines the expertise to develop the Unified Process (UP), by definition, is caused by the software engineering process combines the expertise to develop the software (Software engineer) has been defined and used to develop software that works well together. By choice, but good techniques and procedures that effectively the same and each of such experts together (Unify) and given a new name. "The unified software development process (Unified Process)" Sometimes we find a similar process in the field of software engineering.