Chpt10Acquiring_IT_Applications

Chpt10Acquiring_IT_Applications - Dr. Easton IDS180 1...

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Unformatted text preview: Dr. Easton IDS180 1 Acquir ing I T Applications Chapter 10 This is impor tant because companies increasingly rely on I T solutions for competitive advantage and/or organizational efficiencies; there are var ious options for acquir ing I T applications; some are relatively time consuming; most are expensive; t oo many I T projects fail; systems development projects must be managed- using project management techniques such as: Program Evaluation and Review Technique (PERT) Cr itical Path Method (CPM) Dr. Easton IDS 180 Tools for Project Management A Gantt Chart is used to plan and schedule time relationships among project activities Time Time (days) (days) Activities Activities A B C D E F 1 2 2 3 2 1 Dr. Easton IDS 180 Tools for Project Management Microsoft Project , one of the leading project management software tools, uses a Gantt Chart as the primary object for managing a project. Dr. Easton IDS 180 Tools for Project Management A PERT chart displays the tasks in a project along with the dependencies between these tasks. A B C D E F 1 2 2 3 2 1 What is the soonest that this project can be completed? Dr. Easton IDS 180 The Critical Path is shown in red PERT Chart in MS Project Options for Acquir ing I T Solutions Buy system off-the-shelf Lease the system Application Ser vice Pr ovider s (ASP) Softwar e as a Ser vice (SaaS) application deliver y model where vendor develops a web software application and hosts the application for use by its customers over the I nter net. Customers pay for using the software, but do not own it. Ar izona State Univer sity uses Google Apps and Email Ser vice Outsour ce the development of system Build system in-house large projects require project management exper tise often relies on a for mal Systems Development methodology to ensure success Systems Development Life Cycle (SDLC) What can be done to help the decision-making process? Acquir ing the Syst em: Make or Buy? Evaluating Alt er natives using an Evaluation Matr ix Evaluation Matrix Buy Criteria Weight Score (S * W) Score (S * W) Cost 50% 2 1 2 1 Ease of Use 30% 3 0.9 3 0.9 Time to completion 20% 1 0.2 3 0.6 Total 2.1 2.5 Legend: Excellent = 4 Good = 3 Fair = 2 Poor = 1 Make Planning for and Justifying I T Applications To ensure that an infor mation syst em will be successful, companies must PL AN and ANALYZE how infor mation t echnology will be used. Organizations must analyze the need for the I T application. Each I T application must be justified in ter ms of costs and benefits. Application por tfolio is a pr ior itized list of both existing and pot ential I T applications of a company. I T Strat egic Plan A set of long-range goals that descr ibe the I T infrastr ucture and major I T initiatives needed t o achieve the goals of the organization. The plan must be aligned with the organizations strategic plan provide for an I T architecture that enables users,...
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This note was uploaded on 05/04/2008 for the course IDS 180 taught by Professor Clague during the Spring '08 term at San Diego State.

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Chpt10Acquiring_IT_Applications - Dr. Easton IDS180 1...

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