chapter 11: systems development and procurement copyright © 2013 pearson education, inc. publishing...
TRANSCRIPT
Chapter 11:Systems Development and
Procurement
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Learning objectives
1. Systems development life cycle
2. Software development strategies
3. Strategy selection
4. Build vs. buy
5. Human element
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Facebook FBI
• 1,000 users within
24 hours
• $170 million project
scrapped
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Facebook and FBI
Systems developmentlife cycle
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1. Planning
• Assessing business need– Return on investment
– Competitive advantage
– Risk management
• Feasibility study
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• Process diagrams
• Requirements
definition
• Build or buy?
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2. Analysis
3. Design
• Architectural design
• Data models
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• Version control
• Project and issue
tracking
• Code review
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4. Development
5. Testing
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6. Implementation
• Parallel
• Phased
• Direct
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7. Maintenance
• Bug fixes and change requests
• Aging of IS
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Software developmentstrategies
• Waterfall
• Iterative
• Agile
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Agile
• Scrum
• eXtreme programming
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Comparing approaches
• Type of project
• Organizational culture
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Waterfall
• Still widely used for many reasons:– Managers are familiar
– Developers are adapting
– Cultural challenges for agile
– Outsourcing fixed-bid contracts
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Buy strategy
• Advantages and disadvantages
• RFI and RFP
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• Best of breed• Unified procurement
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Evaluating the options
Adaptation and customization
• Adaptation
• Customization
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Human element
• Cross-functional teams
• Senior management
• Consultants
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Summary
1. Systems development life cycle
2. Software development strategies
3. Strategy selection
4. Build vs. buy
5. Human element
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Babycenter.com case
• Before, 85% of time fixing bugs
• Scrum discipline
• Business results
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U.S. Strategic Commandcase
• eXtreme programming
• Pilot project
• Problems and potential
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