Practical ergonomics

In practice, the ergonomic criteria involve consideration of many factors:

• click depth
• download time
• file size
• number of files
• equipment expense (hardware and software)
• telecom expenses (for modem and similar connections)
• provider expenses for navigation (use of gateway, services):
  • basic fee
  • time
  • volume
  • distance
• provider expenses for provision of site (per page)
• designer expenses for creation and maintenance of site (per page)