Changeover - California State University, Sacramento
MIS 161 Systems Development Life Cycle II Lecture 6: System Changeover Issues Changeover Process Scheduling process Weekends, nights, or holidays Notification to customers
external internal Activity phase-down only priority transactions Elements of a Scheduling Scheduling Process What activities will be performed when and by
whom Technical aspects Installing hardware and software Converting data Organizational aspects Training users on the system Motivating employees to use the new system to aid in their work Change management
Changeover Process File conversion download old system upload new system System changeover New system priming start feeding transactions Parallel Cut-Over
For a time both old and new systems are used. The old is abandoned when the new is proven fully capable OLD SYSTEM NEW SYSTEM Parallel Period Direct (Crash) Changeover
The new system instantly replaces the old OLD SYSTEM Cut-over Date NEW SYSTEM Staged Changeover The system is converted in stages
OLD NEW Changeover Factors
Costs System criticality User computer experience System complexity User resistance Time
Institutionalization of the System Provide support Assistance in using the system Provide maintenance Repair or fix discovered bugs or errors Add minor enhancements to provide added value Assess the project Analyze what was done well
Discover what activities need improvement in the future Types of System Support On-demand training at time of user need Online support Frequently asked questions (FAQ) Help desk Phone service for known issues Level 2 Support
Training New system training must be performed Analysts must consider
Who needs to be trained Who will train them Objectives of training Methods of instruction to be used Sites Materials Sources of Training Possible sources of training for users of
information systems include Vendors Systems analysts External paid trainers
In-house trainers Other system users Maintaining/Modifying the System Problem reports from the operations group Requests for enhancements from users Requests from other systems development projects Change requests from senior
management Project Assessment Important for continued project improvement Especially important for junior personnel to improve quickly Project Team Review Each member prepares 2-3 page document regarding
her or his actions during the project Focus on improvement not penalties Excellent behaviors are acknowledged and diffused to others Team leader summarizes and distributes lessons learned System Review Examine the extent to which the costs and benefits of the system are realized
Use this information to help in more accurately estimating costs and benefits for future projects
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