Summary: Web Services Directory (cont.)

• Example Problem - Big Government:

  • Walk in the door, look at the sign
  • One line to get a form (&#-109;Am I in the right line?&#-108;)
  • Another line to process/approve the form
  • Another to pay
  • &#-109;Sorry, go back, you can&#-110;t do that here&#-123;&#-108;

• Solution

  • Access Controls: Can&#-110;t go any farther than allowed
  • Single data source: Go all the way to the 7th floor only to find out the office is moved - forgot to update the sign
  • Services that aggregate services: Help desk - they know the sequences of lines and windows.