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Aquiring IS & Apps

chapter 3 revision

TermDefinition
Application portfolio prioritized list of existing and potential IT apps of a company
Organization strategic plan states firm's mission, goals, overall broad necessary steps to reach these goals
IT architecture the way an org. information resources should be used to accomplish it's mission
IT strategic plan set of long-range goals that describe the IT infrastructure & major IT initiatives needed to accomplish it's missions
IT operational plan Contains; mission, IT environment, IT functions, app portfolio, objectives of functions, resources allocations
Intangible benefits desirable IT benefits that could be difficult to place a monetary value on it [Net present value, Return on investment, Breakeven analysis]
NPV convert future value benefits on their present value equivalent
Return on Investment measures the effectiveness of management in generating profits
Breakeven analysis determines the point at which the cumulative dollar value of benefits from a project equals the investments made in the project
SDLC traditional systems development method for large scale IT projects
Waterfall approach task phase has to be completed before the work proceeds to the next stage
Feasibility study main task of system investigation stage; 1) do nothing 2)modify/ enhance system 3) develop new system
SDLC - system analysis examination of a business problem, gather info to determine requirements, delivers set of requirements
SDLC - system design describes how the system will accomplish this task, delivers technical design
SDLC - programming & testing translation of a system's design then test to see if the computer codes will produce the desirable outcomes / goals
SDLC - system deployment process of
Created by: zainahamdan
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