Stage 1 Analysis (System Life Cycle)

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Stage 1: Analysis By – H’MM

Transcript of Stage 1 Analysis (System Life Cycle)

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Stage 1: AnalysisBy – H’MM

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IntroductionAnalysis

Design

Development and Testing

Implementation

Documentation

Evaluation

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Stage 1: Analysis – Preliminary Investigation

Feasibility study / System survey Determine the problem Describe the problem Understand management decisions

Organizational chart Informal hierarchy

Produces rough plan and what to do

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Problem Definition Nature of the problem

Separate problem from symptoms of problem

Scope of the projectBudget and schedule

Objectives of the projectWhat user thinks system should do

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ReportWhat you have foundRecommendationsFinancially feasible

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Analysis – Data Gathering

Written documents Interviews

Structured Unstructured

Questionnaires Observation

Visits by appointment Participant observation

Sampling

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How the current system works Determine system requirements Basis for documentation Tools

Data flow diagram (DFD) Decision tables

Analysis – Analyze Data

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Analysis – Data Flow Diagram (DFD)

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Analysis – Decision Tables

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Analysis – System Requirements

Detailed list of things the system must be able to do

Design is based upon system requirements Agreement upon requirements is needed

before proceeding

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Analysis – Report to Management

Summarize problems Describe requirements Cost analysis Recommendations for next step Obtain authorization to proceed