Fase de analise do ciclo de vida de desenvolvimento de sistema de informação

Abstract

Systems analysis is an activity that involves the development of different types of systems models. This requires the use of appropriate techniques. Currently two paradigms are available for systems analysis: structured analysis and object-oriented analysis, the latter modelled on the basis of AOO (UML). This dissertation presents a comparative study between the two paradigms, in the requirements analysis and specification phase in the systems development life cycle (CVDS). analysing their features aimed at data models and functional model. This work comprises nine chapters. In the first one, the problem is defined, the objectives are stated, as well as the methodology and study material used; the second one summarises the development and evolution of methodologies and their limitations, as well as the emergence of new methodologies. Chapter 3 deals exclusively with the requirements analysis phase which constitutes the area of study. Chapter 4 presents the tools necessary for the analysis and comparison of structured and object-oriented methodologies. Chapter 5 analyses and compares the tools previously presented in Chapter 4; Chapter 6 discusses whether UML replaces or complements the structured methodology; Chapter 7 concludes the work; Chapter 8 makes recommendations; Chapter 9 presents the bibliography used and finally the appendix. In this work we took as a case study, a real estate agency dedicated to the rental of real estate, where we analyse and compare the way each of the methodologies identifies and represents the functional model and the data model.(TRADUÇAO NOSSA)