EXERCISE 5 P+P - Research Paper Example

The Merise has the basic assumption of System design and development going through three cycles of - abstraction, approval and life cycle. There can be object oriented transformation of Merise analysis. The cognitive bias of Merise is that it is not limited only to the modeling of a database (Pham, 1991). 2. Purpose & Periphery  What does the method encompass?  What is it (designed to be) used for?  To what can it be adapted/applied?  What does it preclude? The method encompasses three characteristics viz.

structural overview with diagram and text that is beneficial for easier implementation, better quality system and a use of improved planning. The development method was primarily designed for UK and the government computing requirements. The application later became hugely popular and hence it was adapted by the European public sector companies (Doorn, 2002) . The Merise mainly encompasses graphical representation through three different cycles. It is mainly designed for development cycle, which is decision cycle, life cycle and abstraction cycle.

It is mainly applied such that data and processes are viewed in conceptual level then logical level and finally operational level (Pham, 1991). The SSADM technology precludes various drawbacks of previous technologies by offering below listed advantages:- 1. SSADM involves user 2. SSADM separates the logical and physical aspect of the system 3. It gives the three different views of the system 4. It has well-defined techniques and documentation However, SSADM technology cannot be applied in all conditions.

The SSADM technology requires a large enterprise and may not be suitable for all types of enterprises like Small scale or medium. A large investment of time and money is required to use this technology. It requires a big place and also needs trained people to use it (Ashworth, 1990). 3. Process & Procedure Guidance offered  What do we do? What happens next?  Procedures for moving through the stages/phases/tasks/ Practitioner guide  Participant guidance  There are guidance available, which can teach the software designing methodology with plenty of tutorials available, both in printed form and online format.

The Practical Business Systems Development using SSADM4 by Philip Weaver (Weaver, 2002) is a complete guideline on it. There are software development sites, which help in these issues too. With the help of Logical Data Modelling, one can identify, model and document the requirements of data for the system being considered for design. Using this method, the data is separated into relationships and entities. Because of this, it becomes easier to know about the fields for which business needs to record the information and about the relationships between entities.

The data flow modelling recognize, model and document the movement of data around the information system. It examines the actions which transform one form of data to another, area where data is held, what receive data into system or sends data from system and also about the routes through which data can flow. And the entity behaviour modelling takes care of actions that influence each unit and the sequence in which these actions occur. There are detail procedures in these tutorial books which guides through stages of the task.

Even there are modules like requirements analysis,