Matakuliah Tahun : A0304 - Evaluasi Efektivitas Sistem Informasi : 2006 Evaluation of IT Function Pertemuan 13-18 1 IT Effectiveness • • • • • • • • • • Meets its objectives Operates within budgets Delivers on time Directs firm’s use of IT Used competitively Understood in the organization Perceived to be an ally Internally efficient as industry average Delivers system for no greater cost Perceived to be value for money 2 CEA Cost-Effectiveness Analysis (CEA) is a simplified Benefit Cost Analysis, which can be done when either the benefits or the costs are the same for all alternatives. The analysis is greatly simplified because the best alternative is either: the one with the most benefits (when the costs are the same for all alternatives) or the one with the lowest cost (when the benefits are the same for all alternatives). 3 UIS Model 4 Evaluation of the IT Function - Goals • There are two generic approaches to these view of IT Functions, – A Goal Centered view and, – A Service Centered view. • Goals are usually set at either strategic or tactical level. • They are implemented by the successful completion of a series of tasks or projects. • The Goal is usually associated with changing the steady state of the business or IT Function. • Change is the primary approach to this concept. 5 Evaluation of the IT Function Goals • A Goals centered evaluation system is most commonly associated with the Program or Project Management perspectives. – Define the requirements and understand what you will need to do. – Design a solution and plan its implementation to solve for the requirements identified in the scoping activity. – Execute the Plan. – Measure the success against the original goals. Do lessons learned, etc. Was the project successful? 6 Evaluation of the IT Function Services • A service centered view of the IT Function is targeted toward maintaining or increasing the level of service currently provided. • Need a minimum level of service be maintained. – Service levels are agreed to in advance by the IT department and representatives of the user community. – Metrics include tracking up-time and service availability. • This is reduced to writing in the form of an Service Level Agreement or SLA 7 Evaluation of the IT Function Services • An SLA is usually measured by quantifying the time the system is available or service is rendered and systems or service response time. • There are variations to this theme but a 99.5% SLA on a system’s availability is common . • This means that within the 99.5 SLA, an EBusiness solution can be “down” for about 3.6 hours a month [(30 day x 24 hours x 60 minutes) x .005] 8 Evaluation of the IT Function Services • Availability is the function of the users needs, the system design and the negotiated baselines. • The minimum levels of service required are documented. • This approach to Services evaluation greatly simplifies the quantification of the value of IT Functions. • Another approach to evaluating IT Functionality is through the use of user satisfaction surveys. 9