Presentation on theme: "kareRCIserIsviFIsaRsþGnuvtþKMerag"— Presentation transcript:
1 kareRCIserIsviFIsaRsþGnuvtþKMerag Chapter 4kareRCIserIsviFIsaRsþGnuvtþKMeragSelection Of An Appropriate Project Approach
2 CHOOSING TECHNOLOGIES The development of software in-house suggests that the project has certain characteristics:the project team and the users belong to the same organization;the project being considered slot into a portfolio of existing computer-based system;the methodologies and technologies to be used are not selected by the project manager, but are dictated by local standards.
3 An outcome of project analysis will be the selection of the most appropriate methodologies and technologies.
4 MethodologiesWaterfall MethodV-process ModelRADSpiral Model
5 Waterfall Method Also known as the Traditional method There is a sequence of activities working from top to bottom.
6 Waterfall Method (con’t) Advantages:Shorter development timeCost possibleDrawbacks:System limitations not being discovered until later in the development cycleClients not being able to see the product until its is completely finished.
10 V-Process Method (con’t) Advantages:Customer more satisfactionIncreased qualityDrawbacks:More timeMore resources
11 RAPID APPLICATION DEVELOPMENT Customers of IT are concerned with getting working business applications delivered quickly and at less cost.A response to this has been Rapid Application Development (RAD).
12 Team #1Team #2Team #3BusinessModelingBusinessModelingBusinessModelingDataModelingDataModelingDataModelingProcessModelingProcessModelingProcessModelingApplicationGenerationApplicationGenerationApplicationGenerationTestingandTurnoverTestingandTurnoverTestingandTurnover
13 RAD (con’t) Advantages: Drawbacks: Increased speed of development Increased qualityDrawbacks:Reduced scalabilityReduced featureNeed more resources
14 Spiral ModelIs a software development process combining elements of both design and prototyping in stages.Risk analysisEngineering-DesignConstructionPlanningCustomer CommunicationCustomer Evaluation
15 Spiral (con’t) Advantages: Drawbacks: Increased quality Less risks ComplexityIt is a new model