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design:usability_heuristics_for_user_interface_design [2020/06/11 12:39] – created mmccdesign:usability_heuristics_for_user_interface_design [2021/06/25 10:09] (current) – external edit 127.0.0.1
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 +====== 10 Usability Heuristics for User Interface Design ======
  
 +Author: Michelle McCausland
 +
 +## 1. **Visibility of System Status**
 +
 +- The system should always keep users informed about what is going on, through appropriate feedback within a reasonable time.
 +
 +## 2. **Match between system and the real world**
 +
 +- The system should speak the users' language, with words, phrases, and concepts familiar to the user, rather than system-oriented terms.
 +- Follow real-world conventions, making information appear in a natural and logical order.
 +
 +## 3. **User control and freedom**
 +
 +- Users often choose system functions by mistake and will need a clearly marked "emergency exit" to leave the unwanted state without having to go through an extended dialogue.
 +- Support undo and redo.
 +
 +## 4. **Consistency and standards**
 +
 +- Users should not have to wonder whether different words, situations, or actions mean the same thing. Follow platform conventions.
 +
 +## 5. **Error prevention**
 +
 +- Even better than good error messages is a careful design which prevents a problem from occurring in the first place.
 +- Either eliminate error-prone conditions or check for them and present users with a confirmation option before they commit to the action.
 +
 +## 6. **Recognition rather than recall**
 +
 +- Minimize the user's memory load by aking objects, actions, and options visible.
 +- The user should not have to remember information from one part of the dialogue to another.
 +- Instructions for use of the system should be visible or easily retrievable whenever appropriate.
 +
 +## 7. **Flexibility and efficiency of use**
 +
 +- Accelerators — unseen by the novice user — may often speed up the interaction for the expert user such that the system can cater to both inexperienced and experienced users.
 +- Allow users to tailor frequent actions.
 +
 +## 8. **Aesthetic and minimalist design**
 +
 +- Dialogues should not contain information which is irrelevant or rarely needed.
 +- Every extra unit of information in a dialogue competes with the relevant units of information and diminishes their relative visibility.
 +
 +## 9. **Help users recognize, diagnose, and recover from errors**
 +
 +- Error messages should be expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution.
 +
 +## 10. **Help and documentation**
 +
 +- Even though it is better if the system can be used without documentation, it may be necessary to provide help and documentation.
 +- Any such information should be easy to search, focused on the user's task, list concrete steps to be carried out, and not be too large.