Implentation

At this point, the system is designed, tested and is ready to be implement it. The thing is, how to do so? Knowing that there are four ways in which you can implement the system. So, which one is the best choice? Like with the methods of recording info back in the analysis stage, there is no black & white rather than it's all shades of grey.

 

1) Parallel Running: Both the old & the new system will work simultaneously and then the new system gradually dominates.

* Pros: Workers can be trained to use the new system while it is being implemented. If there are any problems with the new system and it has to halt, the old system will still be there as a backup.

* Cons: Two sets of workers have to be paid to keep both systems running. It takes a lot of time to be fully implemented. Actually, it is the slowest method of implementation.

2) Phased Implementation: Implementing the system one part at a time. This is like buying a fixed asset with monthly payments (Hire Purchase).

* Pros: If one aspect of the system fails, the other aspects will remain unaffected. Workers will have time to get used to the new system.

* Cons: It is a slower method when compared to direct changeover. If the new system fails, there's no hope to revert to its predecessor.

3) Direct Changeover: From the name itself, the old system is replaced instantly with the new system.

* Pros: Only one set of workers have to be paid, so it doesn't cost as much as in parallel running where two sets have to be paid. It's the quickest way to fully implement a new system.

* Cons: No backup is there. So if the new system fails, you're done for. It can be difficult to make improvements to the new system and keep it working.

4) Pilot Running: The system is implemented in one branch of the organization whilst the other branches carry out with their existing one.

* Pros: If the system doesn't work properly, the other branches won't be affected. The later branches benefit from the mistakes made in earlier branches.

* Cons: It is a slow method of implementation.