System Development

11.7 Implementation

11.7.1 Hardware Installation

Before the new system can come into operation hardware will probably have to be installed. This may include:

• New computers
• New peripherals
• New office layout and furniture

11.7.2 Staff Training

Prior to the new system going live, all the staff involved in the system will need hands on training.

Realistic data should be used in briefing.

11.7.3 Creation Of Master Files

All the master files will have to be created before the system can be used.

Typically, there are two phases:

Phase 1

All the data that will not change can be typed in over a few days or weeks.

Phase 2

Data that is liable to change needs to be keyed in just before the changeover to the new system.

11.7.4 Conversion Methods

1. Direct Changeover

   The organisation stops using the old system one day and starts using the new system the next.

   Advantages

   • Fast
   • Efficient
   • Little or no duplication of work

   Disadvantages

   • If the new system fails then there will be serious disruption



2. Parallel Conversion

   The old system is kept running alongside the new system for a few weeks or months.

   Advantages

   • The old system can be relied upon while any problems with the new system are fixed
   • Results from the new system can be checked against the old system

   Disadvantages

   • There's a heavy workload on staff



3. Phased Conversion (Direct or Parallel)

   This is used with larger system that can be broken down into several stages.

   Each part of the system can be implemented at different times.




4. Pilot Conversion

   Only a part of the organisation uses the new system at first.

---

< Previous

Back To Topic

Next >

---