This preview shows page 1. Sign up to view the full content.
Unformatted text preview: eive some training to become familiar with the
Replacing all old operation procedures by new ones. This may involve
discarding of old forms, manual registers, etc.
3. Replacing of all old input and output devices with those of the new system.
4. Defining the roles of different members and assigning the responsibilities to
them as per the requirements of the new system.
5. Converting data in all currently existing files into a form acceptable to the
new system. This may involve inputting of data stored in manual registers and
hard-copy files through the input devices of the new system. It is important to
consolidate the files and eliminate duplicate records in them while converting them to the new form. File inconsistencies or any errors in existing files must
also be detected and removed.
The three normally followed methods to carry out the changeover process are
immediate changeover, parallel run and phased conversion. Each of these methods
has its own advantages and disadvantages. No single method is suitable for
converting all types of systems and the choice of a particular method largely
depends upon the prevailing conversion circumstances. These methods are briefly
As shown in Figure 13.2(a), in this method, a suitable cut-off data is decided and
the complete new system is put to operation from that day onwards, while the
operation of the old system is completely abandoned from the cutoff date.
It has been found that most systems pose some problem or the other during the
changeover process. Hence the method of immediate changeover is generally
considered to be risky because any failure in the new system during the
changeover phase may cause total breakdown of those operations of the
organization that are related to the new and the old system. The work cannot
progress at all because the operation of the old system has already been stopped.
This method, however, is preferred in those situations where available manpower
and changeover time is less, and the system is not so critical that some operational
problems during the changeover proce...
View Full Document
This document was uploaded on 04/07/2014.
- Spring '14