1.1.5 Alternative Installation processes

Question 1

is the installation of a new system a common situation?

Answer 1

yes, almost enterprises, organizations and individuals will face this more than one time

Question 2

what is the installation of a new system?

Answer 2

you replace an old system for a new system

Question 3

what is changeover?

Answer 3

process of putting the new system online and retiring the old one

Question 4

reasons why organizations may choose one implementation method than the other?

Answer 4

costs and risk or there might also be resistance of employees or costumers against the change.

Question 5

how could you reduce the negative effects of costumers and employees resistance to change?

Answer 5

by planning the changeover well

Question 6

what are the type of changeover?

Answer 6

parallel, Direct (immediate), Pilot, Phased

Question 7

What is the Parallel Changeover?

Answer 7

both systems work in parallel for a short period of time. This method is popular because of the limited risk. If the new system fails, company can return to old system. When the company is satisfied with the output of new system the old system can be terminated.

Question 8

disadvantages of a Parallel Changeover?

Answer 8

because the two systems are run simultaneously it means extra costs between personnel and software. also there’s much more workload because it requires both systems running at the same time and this involves various organizational tasks.

Question 9

when is the method parallel not efficient?

Answer 9

if the old and new systems have completely different processing tasks, functions, inputs, or outputs

Question 10

how can you know if both systems are running efficiently (parallel) ?

Answer 10

when comparing outputs of both systems

Question 11

What is the Big Bang Changeover?

Answer 11

company plugs in new system and unplugs old one at the same time.

Question 12

Disadvantages of the Big Bang Changeover?

Answer 12

it is very risky because you plug and unplug both systems at the same time. When decided to use this changeover the administration has to prepare first all necessary procedure before it begins.

Question 13

Dangers of the Big Bang Changeover?

Answer 13

it could be very dangerous if the new system doesn’t as expected.

Question 14

when is the Big Bang Changeover preferred?

Answer 14

when the system is not critical.

Question 15

When there’s a Big Bang Changeover what has to be done first with employees?

Answer 15

the employees/users of the system have to be trained so they can appropriately manage the new system when the switch takes place so they can use it efficiently

Question 16

What is the Pilot Changeover?

Answer 16

the new system is introduced in one site and extended to other sites of the company over time.

Question 17

What is the risk of Pilot changeover?

Answer 17

the risk of this method is very low and the pilot sites can serve as models for the rest of the company.

Question 18

How does the pilot Changeover take place?

Answer 18

Theres a first group that adopts the new system and that is called the pilot site or pilot group. After the system proves successful in the pilot site it is implemented into the rest of the company using a changeover method (usually direct)

Question 19

When do companies prefer the Pilot Changeover?

Answer 19

mostly used in large organizations that have multiple sites

Question 20

What is the Phase Changeover?

Answer 20

a company converts one module of the system at a time, meaning different parts of the system are converted at different times.

Question 21

Does the Phase Changeover require training?

Answer 21

yes, and the training period is extended and the adoption of the new system takes longer since each phase must be implemented separetely

Question 22

how is it like the installation of a new system with the Phase Changeover?

Answer 22

it is done per module, per department, etc

Question 23

what is a critical decision when moving from an old system to a new one?

Answer 23

the implementation method