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There are a number of installations used: parallel, direct, phased and pilot. Howeever in other to do installations there would be some changes that need to be made with some components:

 

Hardware

 

  • Workstations plus peripherals such as printers, server(s), backup devices and uninterruptible power supplies.

  • Network cabling or wireless access points routers and switches.

  • The infrastructure must be designed to give all users access to the correct data at acceptable speeds and protect them as far as possible from data loss.

 

Software: 

 

  • Applications software, loaded on workstations or server.

  • Network and client operating systems••Backup software.

  • The network operating system controls and monitors security and must be configured to allow users correct levels of access.

  • Accounting can be set up to monitor or charge for system resources.

 

 

Installation

Types of Installation
Direct

This type of installation usually involves the company completely switching to the new system. This is normally done over the weekend or a time when there is the smallest traffic on the system. It is the most straight forward type of installation.

The disadvantage of this method is that if the system fails the whole business shuts down. Despite this, this method requires fewer resources and is simple.

 

Parallel

Parallel installation is conducted by running the old system alongside the new system until the new system is working correctly and is in place. This involves a lot of unnecessary changes and is expensive but however it is less risky than the direct method and staff can take their time to learn and perfect the skills needed to operate the new system.

 

Phased

​In this type of installation one part of the old system would be converted into the new system in parts until the whole system is converted and working properly. This is only suitable for systems that are separated into parts but it allows problem solving with each part

 

 
Pilot

This type of installation is ideal for large companies. This allows the system to be introduced at one point and then trasnferred to different departments or bramches. This would allow for reports and analysis to be made concerning the new system. This method, although constrained to the specific branch or department would still have the disadvantages of using the direct method and would not allow staff using the new system to be able to communicate with those still using the old system. On the other hand, issues and problems with the system are restricted to the departments or branches and cna be identified wihtout affecting the whole company.

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