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SYSTEM PLANNING : :fire:, Steps In Preliminary Investigation : :explode: …
SYSTEM PLANNING : :fire:
Preliminary Investigation :<3:
-A systems analyst conducts a preliminary investigation to study the systems request
-The analyst interacts with managers and users.
-The analyst gathers facts about the problem or opportunity, project scope and constraints, project benefits, and estimated development time and costs.
-The end product of the preliminary investigation is a report to management
Interaction with Managers And Users :<3:
-Let people know about the investigation and explain your role
-Employee attitudes and reactions are important and must be considered
-Be careful in your use of the word problem
-Question users about additional capability they would like to have
Planning The Preliminary Investigation :<3:
-During a preliminary investigation, a systems analyst typically follows a series of steps
-The exact procedure depends on the nature of the request, the size of the project, and the degree of urgency
Steps In Preliminary Investigation : :explode:
STEP 1 : Understand The Problem Or Opportunity
-A popular technique for investigating causes and effects is called a fishbone diagram, or Ishikawa diagram
-When using a fishbone diagram, an analyst first states the problem and draws a main bone with sub-bones that represent possible causes of the problem.
STEP 2 : Define The Project Scope & Constrain
-Determining the project scope means defining the specific boundaries, or extent, of the project.
-When examining constraints, you should identify their characteristics.
Present versus future
Internal versus external
Mandatory versus desirable
STEP 3 : Perform Fact Finding
-The objective of fact-finding is to gather data about project usability, costs, benefits, and schedules.
-Fact-finding involves various techniques
-During fact finding, you might;
Analyze Organization Charts
Conduct interviews
Review documentation
Observe operations
Conduct a user survey
STEP 4: Analyze Project Usability, Cost, Benefit, and Schedule Data
-Before you can evaluate feasibility, you must analyze this data carefully
-Also, you should develop time and cost estimates for the requirements modeling tasks for the next SDLC phase, systems analysis
STEP 5: Evaluate Feasibility
-Start by reviewing the answers to the questions you asked
-Also consider the following guidelines:
*Operational feasibility
*Technical feasibility
*Economic feasibility
*Schedule feasibility
STEP 6: Present Results and Recommendations to Management
-The final task in the preliminary investigation is to prepare a report to management
-The format of the preliminary investigation report varies from one company to another
-The report must include an estimate of time, staffing requirements, costs, benefits, and expected results for the next phase of the SDLC