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Conversion Strategies

Explore four possible methods for system conversion: Abrupt Cutover, Parallel, Location, and Staged. Understand their advantages and disadvantages to choose the most suitable approach for your team project in order to ensure a smooth transition. Make an informed decision to mitigate risks and maximize benefits.

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Conversion Strategies

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  1. Conversion Strategies

  2. Four Possible Methods • Abrupt Cutover • Parallel Conversion • Location Conversion • Staged Conversion

  3. Abrupt Cutover • As of a specific date the new system is installed.No Looking Back • Previous versions of the text called this the “Crash” method.

  4. Abrupt Cutover Advantages • Lowest Cost (If it works) • Ensures everyone uses new system • Benefits achieved at earliest possible time

  5. Abrupt Cutover - Disadvantages • Highest Risk

  6. Parallel Conversion • Run both the old and new systems for a specified period of time.

  7. Parallel Conversion Advantages • Safest Method • Major problems resolved before implemented

  8. Parallel Conversion - Disadvantages • Highest Cost • High Demand on Resources • Potential to “hang on’ to old system

  9. Location Conversion • May convert with one (or more) locations at a time • First site is called a “Beta” site

  10. Location Conversion - Advantages • Minimizes Risk • Bugs worked out at first location • Remaining sites can usually convert by abrupt method.

  11. Location Conversion _ Disadvantages • Delays benefits • Increased Cost • Must co-exist with existing system • Implementation Team committed longer • Costs higher

  12. Staged Conversion • Various portions or versions of the system are installed one a t a time • Each version is installed as it becomes available

  13. Staged Conversion - Advantages • Relatively safe • Able to resolve problems on a limited scale • Minimizes immediate impact on users

  14. Staged Conversion - Disadvantages • High Cost • Resources committed Longer • Must maintain previous systems • Benefits Delayed • Problems encountered in new releases may require correcting previous systems implemented

  15. Reminder • Your team must select one or a combination of these methods for your team project

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