Chapter 11 Baltzan

Chapter 11 Baltzan - Systems Development Chapter 11...

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Systems Development Chapter 11
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Developing Enterprise  Applications Section 11.1
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Developing Software Software that is built correctly can transform as the organization and its business transforms Software that effectively meets employee needs will help an organization become more productive and enhance decision making Software that does not meet employee needs may have a damaging effect on productivity and can even cause a business to fail
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Developing Software As organizations’ reliance on software grows, so do the business-related consequences of software successes and failures including: Increase or decrease revenue Repair or damage to brand reputation Prevent or incur liabilities Increase or decrease productivity
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Systems Development Life Cycle  (SDLC) Systems development life cycle (SDLC) – the overall process for developing information systems from planning and analysis through implementation and maintenance
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Systems Development Life Cycle  (SDLC) Planning phase – involves establishing a high-level plan of the intended project and determining project goals Analysis phase – involves analyzing end-user business requirements and refining project goals into defined functions and operations of the intended system Business requirement – detailed set of business requests that the system must meet in order to be successful
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Systems Development Life Cycle  (SDLC) Design phase – involves describing the desired features and operations of the system including screen layouts, business rules, process diagrams, pseudo code, and other documentation Development phase – involves taking all of the detailed design documents from the design phase and transforming them into the actual system
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Systems Development Life Cycle  (SDLC) Testing phase – involves bringing all the project pieces together into a special testing environment to test for errors, bugs, and interoperability and verify that the system meets all of the business requirements defined in the analysis phase Implementation phase – involves placing the system into production so users can begin to perform actual business operations with the system
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Systems Development Life Cycle  (SDLC) Maintenance phase – involves performing changes, corrections, additions, and upgrades to ensure the system continues to meet the business goals
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Software Development  Methodologies There are a number of different software development methodologies including: Waterfall Rapid application development (RAD) Extreme programming Agile
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Waterfall Methodology Waterfall methodology – a sequential, activity- based process in which each phase in the SDLC is performed sequentially from planning through implementation and maintenance
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Rapid Application Development  Methodology (RAD) RAD emphasizes extensive user involvement in the rapid and evolutionary construction of working prototypes of a system to accelerate
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This note was uploaded on 06/05/2008 for the course MIS 3305 taught by Professor Trower during the Spring '08 term at Baylor.

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Chapter 11 Baltzan - Systems Development Chapter 11...

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