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kareRCIserIsviFIsaRs
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Chapter 4 kareRCIserIsviFIsaRs Gnuvt KMerag Selection Of An Appropriate Project Approach CHOOSING TECHNOLOGIES The development of software in-house suggests that ... – PowerPoint PPT presentation
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Title: kareRCIserIsviFIsaRs
1
Chapter 4
- kareRCIserIsviFIsaRsþGnuvtþKMerag
- Selection Of An Appropriate Project Approach
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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.
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- An outcome of project analysis will be the
selection of the most appropriate methodologies
and technologies.
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Methodologies
- Waterfall Method
- V-process Model
- RAD
- Spiral Model
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Waterfall Method
- Also known as the Traditional method
- There is a sequence of activities working from
top to bottom.
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Waterfall Method (cont)
- Advantages
- Shorter development time
- Cost possible
- Drawbacks
- System limitations not being discovered until
later in the development cycle - Clients not being able to see the product until
its is completely finished.
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V-process Model
- The V-process can be seen as expanding the
testing activities in the waterfall model.
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V-Process Method (cont)
- Advantages
- Customer more satisfaction
- Increased quality
- Drawbacks
- More time
- More resources
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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).
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Team 2
Team 3
Team 1
Business Modeling
Business Modeling
Business Modeling
Data Modeling
Data Modeling
Data Modeling
Process Modeling
Process Modeling
Process Modeling
Application Generation
Application Generation
Application Generation
Testing and Turnover
Testing and Turnover
Testing and Turnover
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RAD (cont)
- Advantages
- Increased speed of development
- Increased quality
- Drawbacks
- Reduced scalability
- Reduced feature
- Need more resources
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Spiral Model
- Is a software development process combining
elements of both design and prototyping in stages.
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Spiral (cont)
- Advantages
- Increased quality
- Less risks
- Drawbacks
- Complexity
- It is a new model
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