In the last lecture, we have been introducing about the types of conversion. So, to let you all easier to understand about any different or actually how those this type of conversion work, I have found some diagram. I hope through the diagram provided, you will give an benefits to you.
First I would like to discuss with you what actually each conversion mean for.
The initial operation of a new e-business system can be a difficult task. Such an operation is usually a conversion process in which the personnel, procedures, equipment, input/output media, and databases of an old information system must be converted to the requirements of a new system. Four major forms of system conversion include:
- Parallel Conversion: - Both the old and the new system are operated until the project development team and end user management agrees to switch completely over to the new system. It is during this time that the operations and results of both systems are compared and evaluated. Errors can be identified and corrected, and the operating problems can be solved before the old system is abandoned.
- Phased Conversion: - Only parts of a new application or only a few departments, branch offices, or plant locations at a time are converted. A phased conversion allows a gradual implementation process to take place within an organization.
- Pilot Conversion: - Where one department or other work site serves as a test site. A new system can be tried out at this site until developers feel it can be implemented throughout the organization.
- Plunge/Direct Cutover: - Use the system immediately and totally abandons the old system.
After the new system has been installing, next step is to maintain the system. In my opinion, maintenance system is more important than develop a new system. No matter how good is the system if without the efficiency maintenance, is doesn’t make sense. This sentence I always listen from one of lecturer in this sem. He is satisfied with the facilities provided by the university but every time he come in the class the computer sure will bring problems for him. Some time, it take around 20 minutes to fix it. From this cases, I realize that, if the university provide a poor system but a good maintenance system is better than provide an advance system but poor maintenance system. Because a new system without the maintenance will always bring trouble for the users.
So, below is several tips for maintenance system:
Once a system is fully implemented and is being used in business operations, the maintenance function begins. System maintenance is the monitoring, evaluating, and modifying of operational e-business systems to make desirable or necessary improvements. The maintenance function includes:
- A post implementation review process to ensure that newly implemented systems meet the e-business objectives established for them.
- Correcting errors in the development or use of the system. This includes a periodic review or audit of a system to ensure that it is operating properly and meeting its objectives.
- Making modifications to an e-business system due to changes in the business organization or the business environment.
I sincerely hope that, my university also can do this maintenance to all the facilities provided also. By this it only can show how advances we are..hehe^^
Sources retrieved from:
http://www.scribd.com/doc/396849/Developing-BusinessIT-Solutions
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