Analysis Process
1- Is the examination, identification, evaluation of components and interrelationship involved in the sys. From problem through maintenance and modification phases.
2- Is the study of problem prior to take any action.
Analysis Steps:
Sys. Analysis depends on:
a. Sys and its environment.
b. Analyst experience and skills.
c. Collected facts.
So there are no standard rules for analysis for all cases but, there are general steps can followed:
- Examine the collect d facts, and be sure these facts comprehensive (completeness) and correct.
- Classified these facts into their elements.
- Establish logical relationships between these elements.
- Suggest the proposed alternatives solutions to the current sys. and evaluate them.
- Choose the suitable alternative and identify its requirements.
Disadvantages of missing (ignoring) the analysis steps:
- Difficult to design the sys and may reach the case (over design) which lead to a high cost.
- The analyst may fail to discover the problem.
- = = = = = develop positive ideas.
- = = = = = identify the requirements of the new sys.
- = = = = = to evaluate and study the alternatives.
The successful analysis process should involve the following:
1- Select an optimal target.
2- Producing detailed documentation of the target in such a manner that subsequence implementation can be evaluated to see waether or not the target has been attained.
3- Producing accurate predications of the important parameters associated with the target including: cost, benefits, schedules and performance characteristics.
4- Obtaining concurrence on each of the items above from each of the affected parties
In analysis phase the sys analyst should begin by identifying the problem and other articles as follows:
1- Determine who the user are.
2- Determine how to gather information.
3- Collect and analyze the information.
4- State the problem.
5- Describe the current sys.
6- Quantify the cost associated.
7- Summarize the current sys. limitations and constraints.
8- Establish all preliminary objectives and requirements.
9- Formulate general alternatives solutions.
10- Do preliminary cost/benefit analysis for each solution.
11- Estimate time and cost involved to develop each alternatives detailed solutions.
12- Summarize finding and state weather the problem warrants further development analysis.
The Preliminary Study Phase
Preliminary study phase contain on:
- Problem definition.
- Objectives setting.
- Feasibility study.
- Plan.
· Problem definition.
v Structure organization as a function, as a management levels charts.
v Management ratio through years:
§ Stock ratio
§ Profile =
§ Sales =
§ Product =
v Historical background.
§ Policies
§ Decision type
§ Decision limiting
§ Decision reasons
v Staff opinions.
· Objectives setting
v Clearly defined
v Quantified
v Time constrained
v Obtainable objectives
· Feasibility study
v Economic conclude cost/benefits
v Technical conclude the H.W and people
Well done feasibility study enables the:-
1. Lack of top management support.
2. Failure to clearly specify problem objectives.
3. Over optimization.
4. Estimations errors.
5. Crash project.
6. The H.W approach.
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .