Quick answer

A company website mainly publishes information; a web platform lets people carry out a process. A business site might show services, case studies and contact details. A platform may give customers accounts, different permissions, private records, transactions and a staff dashboard.

Practical scope

The distinction matters because platform work includes workflow rules and data handling that may be invisible in a design mock-up. Write down every user type and what each can view, create, approve or edit. Map one complete journey, including what happens when a payment fails or a user submits incorrect information.

Some projects can begin with a content-management system and a small number of integrations. Others need custom development because the workflow is the product. Ask vendors to explain why they recommend their approach, what third-party tools it relies on, and how future changes will be made. Compare the total cost of ownership, not only the initial build.

What to define before requesting proposals

  • Whether visitors only read information or complete transactions
  • User types, permissions and private information
  • The complete customer and staff workflow
  • Exception handling, reporting and integrations

Questions to ask service providers

  • Can a content-management system support this workflow?
  • Which parts require custom development and why?
  • How will permissions, audit records and future changes work?

How to assess the answers

Choose based on workflow complexity rather than appearance. A platform proposal should explain data, permissions and exception handling that may not appear in screen designs.

Related planning guides

Next step: Put these decisions into one project brief, then ask providers to respond to the same scope.