People work together on tasks simultaneously via the Internet, even from different buildings, different cities or different countries. This allows organisations to graft Internet tools on to their existing internal systems, allowing access to users on the outside. Users outside the organisation access these internal systems with familiar Internet tools, such as e-mail software or a Web browser. Internet software, with its wide user base, is put through its paces thoroughly, highly reliable, and has better documentation, independent support and available expertise. Organisations don't commit themselves to a single vendor for their network or hardware.
Staff use the same system for accessing their internal and external documents.