Chapter 10, Problem 18RQ

Explanation of Solution

Basic conversion strategies:

There are four basic conversion strategies which is used at what time of converting into new system. They are,

• Direct changeover
• Phased implementation
• Pilot implementation
• Parallel operations

Direct changeover:

The direct changeover is also referred as cold turkey which helps to ending the old method and staring the new method.

• This is simple strategy that employees follow the existing procedure for one week, and then later use a new procedure.
• Some direct changeover is simple, such as a modification that includes requiring workers to use a new password starting on an announced date.
• Some may be complex, such as requiring the complete company to modify procedures at time of network team restricts an old firewall and starts a new one.
• The major problem of direct changeover approach is that when new system fails or required for changes, then the system’s bugs are worked out without help of user services.
• The new system testing in advance helps to decrease the possibility of these problems.

Phased implementation:

The phased implementation is the common conversion strategy and includes rolling out a system part over the whole organization.

• This mean that the security group implements a small part of the new security outline, then giving chance to users to get used to it and solving the small problems as they rise...