Networks and Communications

5. A Question of Scale

Networks become more complicated as they grow. You need to have some realistic idea of the level of resources and support you will need.

5.1 A small network with fewer than ten computers can probably be managed by assigning one person to run it on a day-to-day basis.

A typical small network would only demand a few hours' attention each week as there is little complexity involved:

• One computer is used to store and share files. This can mean using a network server, but you can also use peer-to-peer networking.
• Everybody shares the same printer.
• Every user has the option of seeing and amending every file.
• Contact-management software is used to facilitate planning and scheduling. Sharing software usually involves using a central network server to manage the data flow.

5.2 A medium-sized network of between ten and 100 computers needs at least one person working full-time to manage the network hardware and software.

A medium-sized network may involve more complex issues about who can access information and programs:

• Everybody connects to a network server to share files and resources.
• There are likely to be several printers on the network to minimise bottlenecks.
• Different groups of users are given different access rights to protect sensitive files.
• Network versions of accounts and database software have to be available to different groups of users.

5.3 You may need two or more people to provide network support if networked activities are central to your business:

• You may have a large customised database or groupware product which is vital to your daily operations.
• You may have a large population of users who need to access the Internet.
• You may have people on the road or in other locations who need to access your network remotely.