April 23, 2024

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What is System Implementation?Methods,Advantages,Disadvantages

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What is System Implementation? Methods,Advantages,Disadvantages

The term System Implementation may be defined as

“Implementation is the process of converting the manual or old computerized system with the newly developed system & making it operational, without disturbing the functioning of the organization.”

System Implementation comprises the following;

  1. Creating computer compatible files
  2. Training the people who are going to actually operate the system
  3. Installing the necessary hardware, terminals & network
  4. Installing the proposed software, testing and performing audit trail

 

Types of System Implementation

  1. Fresh System Implementation

Implementation of a totally new computerized system by replacing the manual system

  1. Replacement Implementation

Implementation of a new computerized system by replacing an old computerized system

  1. Modified Implementation

Implementation of a modified computerized system by replacing an old computerized system

 

Installation/ Conversion/ System Changeover Installation

The organizational process of changing over from the current information system to a new one.

 

Approaches of Installation/ Conversion Methods

Basically, these are four methods of conversion.

  1. Direct cutover Installation
  2. Parallel Installation
  3. Phased Installation
  4. Single-Location Installation/ Phased –in the method of conversion

Direct cutover Method

Changing over from the old information system to a new one by turning off the old system when the new one is turned on.

Advantage

Fastest Method

Disadvantage

Very risky

 

 

This method is prepared in situations where

Change over time is very less

Available manpower is also new

The new system is not very crucial to the business operations

 

Parallel Installation

Running the old information system & the new information system at the same time until management decides the old system can be turned off.

Advantage

  1. Availability of old system as a backup
  2. More secure

Disadvantage

  1. Very expensive & time-consuming
  2. Additional manpower must be provided for the operation of two systems in parallel

 

  1. Phased-In- Method of Conversion

In this method, the new system is implemented in many phases. Each phase is carried out only after successful implementation of the previous phase.

 

Advantage

  1. It is not expensive
  2. There is no danger to a total breakdown
  3. The users get sufficient time to become acquainted with the new system

 

 

Disadvantage

  1. It is used in a situation when the new system significantly differs from the old system.

 

  1. Pilot System/ Single-Location Installation

Single location installation involves trying out a new information system at one site & using the experienced decide how the new system should e installed throughout the organization.

 

Advantage

Limits the potential damage & potential cost of limiting the effects to a single site.

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