Evolution of Software Engineering Development Methodologies in the Software Systems Engineering process

Abstract

From the beginning of the use of computers , working on the development of the first programs , a set of guidelines or methods are followed to bring the project to fruition . It is true that in this situation the methodology was simple, it was a typical bottom-up process , with insufficient analysis , since the problem was easily understood in their entirety . Therefore the principle of computer methods were bottom-up process-oriented . In the late sixties began appearing computers in business to solve problems like payroll , no personnel management , because it was a task that requires many calculations generally repetitive and therefore high probability of error. In the seventies began to take shape the idea that although the processes are important and misconduct in its treatment can cause significant problems and discomfort are the most important data. The processes are similar in all organizations and , in some cases, are relatively easy to carry. However, the data are somewhat typical of the organization, something totally different from those of the other organization , and characterize it. The eighties is the time marked by the methodologies directed data whose importance is taking shape in organizations. A mid the prior art allows to consider more complex and strong personality entities. Begin to study the objects themselves as units of information. The new methods are seeking to minimize risks and , since the most damaging errors occur in the first steps, and starts from the most general phase of the study to analyze the risks that go with the next phases of development..