1.1.5 Evaluate alternative installation processes.

1. Direct Changeover

Direct Changeover is like making a complete switch from the old to the new system all at once. This means immediately replacing the entire system.

Advantages:

• • You get the latest technology across the board right away.
  • There are no issues with compatibility.
  • It’s a relatively quick process and requires less overall effort compared to other methods.

Disadvantages / Potential Problems:

• • There will be some confusion about the new technology.
  • Customers might not like the change initially.
  • There’s no backup plan if things don’t go as expected.
  • Staff are under a lot of pressure to make it work.
  • All the costs of new hardware and software need to be paid upfront.

2. Pilot Running

Pilot Running is when the new system is tested in certain parts of a business or organization first. Individuals or departments volunteer to try it out to see how it works. Starting small makes it easier to implement and identify problems.

Advantages:

• • It’s easier to make improvements and adjustments if there are software or hardware issues.
  • Staff from the pilot program can assist other employees when the entire business switches to the new system.
  • If the new system fails, only a small part of the business is affected, not the whole organization.

Disadvantages / Potential Problems:

• • It’s uncertain whether the limited system’s success will translate to the full system.
  • The pilot group may be disconnected from certain systems during the testing phase.

3. Parallel Running

With Parallel Running, a new system is introduced alongside the current or old system, and both run concurrently for some time until the new system is fully functional.

Advantages:

• • If the new system has problems, you can switch back to the old one.
  • The old system can serve as a backup for data, ensuring safety.
  • Real-time results can be compared between the two systems to evaluate the new system’s benefits and correctness.

Disadvantages / Potential Problems:

• • Maintaining both systems costs significantly more money.
  • It involves a lot of extra work because both systems must be managed.

4. Phased Conversion

Phased Conversion is the gradual replacement of parts of the old system with parts of the new system, one step at a time, until the new system is fully integrated.

Advantages:

• • It’s not as abrupt for those involved, including customers.
  • You can replace the parts most in need of change immediately.
  • This can be the safest transition, allowing for careful progress, step by step, with testing along the way.
  • It’s economically friendly when you have limited funds.
  • Staff training can be done in stages, making the transition easier.

Disadvantages / Potential Problems:

• • It’s expensive because you’re maintaining parts of both systems.
  • It can take a long time to complete the transition.