A Layered Technology Software Engineering is the establishment and use of sound engineering principles in order to obtain economically software that is reliable and works efficiently on real machines. The various layers are tools methods process a quality focus Software Engineering asks the following questions What is the problem to be solved? what are the characteristics of the entity that is used to solve the problem? How will the entity and the solution will be realized? How will the entity be constructed? What approach will be used to uncover the errors that were made in the design and construction of the entity? How will the entity be supported over the long term, when corrections,adaptations and enhancements are requested by users of the entity? The Software Process Software Engineering Institute has developed a comprehensive model that is predicated on a set of software engineering capabilities that should be present as an organization reaches dif...