Question

design differ 1.34 Explain how object-oriented analysis and de from the traditional approach. Why isn't RUP (Figur represented as a cycle? Is that good or bad? Explain response.

Answer 1

The main objective of system analysis and design is to develop an effective sysem. This Information system will be able to address the specific organizations needs. System analysis and design increases the services, delivering the quality products. Structured analysis is the traditional system developmenmt technique. Structured analysis is mainly process centered and also it mainly focuses on the process that transform process into information.

Strucutral analysis is a step by step top-down approach to system development life cycle, which moves logically from one phase to another. Dennis says that "object-oriented method balances the focus between process and data by combining into objects". In the first pahse that is planning, swot analysis is done on business case and understanding the problem. Then scope of project is defined and then constraint is identified.

Traditional approach is a step-by-step top down process but object-oriented is a bottom-up procedure which is adopted for information system development. In structured approach there will be data dictionary to serve the purpose.In implementation phase object-oriented approcah uses relational database but not the object-oriented database. Relational model will be better and appropriate or implementing the system, finally has to use traditonal method.

Taditional approach is time tested and it is easy to understand. It is also called waterfall model as each major phase of the methodology flows in a downward direction into next phase. This method has various techniques which has to be integrated to develop a system.

But object-oriented is flexible and effiicient and easily transformed into programming language. In this method each object reresent entity and possess relationship and methods that are necessary to slove the problem. This method uses object modeling technique to analyze functional requirement for system.  

Rational Unified process is object-oriented system development method. RUP has four phases that is Inception phase, construction phase, transition phase and elaboration phase. From point of view, Rational Unified process is good. In Rational Unified process each phase is organised into number of iterations. Rational Unified process emphasizes the need of accurate documentation and implementation. Rational Unified process provides specific plans for each step of the development process and also this method prevents wastage of the resource and reduces the cost.