ICT Lesson - System LiFe Cycle : Analysis

Hi ..

We bagan our ICT lessons this year with our first lesson which is about System LiFe Cycle ..
A system life cycle is simply a number of processes that is done in order to :
Make a current system better or more efficient
OR
Develop a new system which meets the requirements of the directors or the owners

In short , those processes can be summed in the following picture :


In this Post , am going to talk about the Analysing Process ..

System analysis involves examining the existing system in detail, in particular :
                * collecting information on how the existing system works
                * establishing its inputs, outputs and processing
                * recording information, for example in the form of data flow diagrams
                * identifiying problems
Having carried out these stages, the system analyst then needs to :
                * identify suitable hardware and software for a new system
                * identify user and information requirements

An analyst can collect data and information  through different methods , which are :
               1- examination of documents
               2- interviews
               3- observation
               4- questionnaires
As not all methods work efficiently for each and every situation , therefore an anlyst needs to know which method to use with which types of people , and he gets that through experience .
Experience and good data collecting plays great roles in an analyst's work , as an experienced analyst can provide better system analysis and templets to his clients , that match with their needs and requirements and the best choice for them , while an amature wont give that accurate analysis , rather he will focus more on the requests of the clients and how to meet them exactly ..


Well , its a nice job to be an anlyst , but needs much concentration and an ability to identify accurately the errors or needs of the client or their need to be improved-system ..




By : Zaid ..

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