unit 13 - system analysis uml

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  • 8/14/2019 Unit 13 - System Analysis UML

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    OOAD 1/2550 .1

    Unit 13: PROJECT INITIATION

    .

    2/2550

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    OOAD 1/2550 .2

    Object Oriented Systems Analysis andDesign

    Use-case driven

    Architecture Centric

    Iterative and Incremental The Unified Process

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    OOAD 1/2550 .3

    Engineering Workflows

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    OOAD 1/2550 .4

    Supporting Workflows

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    OOAD 1/2550 .5

    Key Ideas

    Projects being when someone sees anopportunity to create business value fromusing information technology.

    Feasibility analysis is used to aid in thedecision of whether or not to proceed with

    the IS project.

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    OOAD 1/2550 .6

    Key Ideas

    The project sponsor is a key person proposingdevelopment or adoption of the new informationtechnology .

    The approval committee reviews proposals fromvarious groups and units in the organization anddecides which to commit to developing.

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    OOAD 1/2550 .7

    IDENTIFYING BUSINESS VALUE

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    System Request

    Lists key elements of the project

    Project name

    Project sponsor Business need

    Functionality

    Expected value Special issues or constraints

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    OOAD 1/2550 .9

    FEASIBILITY ANALYSIS

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    OOAD 1/2550 .10

    Feasibility Analysis

    Detailing Expected Costs and Benefits

    Technical feasibility

    Economic feasibility Organizational feasibility

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    Technical Feasibility:CanWe Build It?

    Familiarity with application

    Knowledge of business domain

    Familiarity with technology Extension of existing firm technologies

    Project size

    Number of people, time, and features

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    OOAD 1/2550 .12

    Economic FeasibilityShouldWe Build It?

    Development costs

    Annual operational costs

    Annual benefits Intangible costs and benefit

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    OOAD 1/2550 .13

    Expected Value

    Costs Benefits

    Tangible

    Intangible

    ***

    ***

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    Cash Flow Method for Cost BenefitAnalysis

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    OOAD 1/2550 .15

    Total (benefits - costs)

    Return on Investment Calculation

    Total costs

    RETURN ON INVESTMENT EQUALS

    Divided by

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    OOAD 1/2550 .16

    Net Present Value Calculation

    (1 + interest rate)n

    Some amount of money

    NET PRESENT VALUE EQUALS

    Divided by

    Where n equals the number of periods

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    OOAD 1/2550 .17

    Organizational FeasibilityIf we build it, will they come?

    Stakeholder analysis considers

    Project champion(s)

    Organizational management

    System users