Systems Analysis and Design (Shell...

11th Edition
Scott Tilley + 1 other
ISBN: 9781305494602



Systems Analysis and Design (Shell...

11th Edition
Scott Tilley + 1 other
ISBN: 9781305494602
Textbook Problem

Which system changeover method would you recommend for an air traffic control system upgrade? Explain your answer.

Program Plan Intro

To determine the recommended system changeover method for an air traffic control system upgrade.

Program Explanation

System changeover: The process of placing new system online and restriction on old system is known as system changeover. The process of changeover can depend on the conditions, it can be rapid, or it may be slow.

There are four methods of system changeover which are as given below:

Direct cutover: In this method, the old system is replaced immediately and newly developed system is deployed. This method is not used for any critical system.

Parallel operation: In this method, the newly developed system and old system works in a parallel manner for a specific time period. After that time period, the old system is removed and all the work is done on new system.

Pilot operation: In this method, the pilot project is used at some specific locations inside the organization. If it is successfully implemented and any problem does not occur, it is implemented all over the organization. The pilot operation also has some time bound...

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