1. Interface Guidelines & Principles Deliver Information

2. Interface Guidelines & Principles  7 principles for Interface Design 1.Focus on the users & tasks, not technology. 2.Conform to the User’s View of the Task. 3.Consider function first, presentation later. 4.Promote Learning 5.Deliver Information

3. Deliver Information  Data versus Information –Data contains information. –Information comes from data. –Too much data does not lead to good information.

4. Deliver Information  Search the web for information. –Hundreds of results. –Information search becomes information discovery. Cartoon by Mark Parisi. Used by special permission.

5. How to Deliver Information  Display Design –Visual Order and User Focus –Find the selected text in the example below.

6. How to Deliver Information  Find the selected text. –Example on the right has the highest contrast. –Text easily identified with high contrast.

7. How to Deliver Information  Display Change Response. –When the user changes the display, the result should produce proportional changes in the display.  Examples: –If the user changes the name of a file, the file should not perform automatic alphabetical sequencing as the user types. The change should occur after the user is done. –If the user selects a name, then highlight the name, not the entire entry. –If the user selects a row, then highlight the entire row.

8. How to Deliver Information  Give the user what he/she requests.  If the user’s request is too large, provide the user with a means of reducing his/her request. –Intelligent User Interfaces, Boolean Searches  Explain data to the user when possible, this translates into information.

9. Deliver Information 1.Visual Order and Focus of Attention. 2.Display Change Response 3.Respond to the user’s request.