Usability encompasses multiple components that change over time as technology develops. However, it is generally agreed that there are five usability attributes:
- Learnability: systems should be easy to use and allow individuals to get started quickly
- Efficiency: systems should be efficient to use
- Memorability: systems should be easy to remember
- Errors: systems should have low error rates
- Satisfaction: systems should be pleasant to use
In addition, three principles ensure usability:
- Consistency
- Controllability
- Predictability
Via Encyclopedia of New Media
that change over time as technology develops. However, it is generally agreed that there are five usability attributes: 1. Learnability . Systems should be easy to learn, so that users can quickly start working. 2. Efficiency . Systems should be efficient to use, so that users can quickly increase their productivity. 3. Memorability . Systems should be easy to remem- ber, so that users can quickly reacquaint them- selves with the system if time has elapsed since they last used the system. 4. Errors . Systems should have low error rates; if users do make errors, they should be quickly cor- rectable. 5. Satisfaction . Systems should be pleasant to use, so that users are not reluctant to work on them. Usability supports, rather than hinders, people’s creativity. Three general principles help to ensure usability:
APA (American Psychological Assoc.)
Jones, S., Sage eReference (Online service), & Sage Publications, inc. (2003). Encyclopedia of New Media : An Essential Reference to Communication and Technology. Thousand Oaks, CA: SAGE Publications, Inc.
that change over time as technology develops. However, it is generally agreed that there are five usability attributes: 1. Learnability . Systems should be easy to learn, so that users can quickly start working. 2. Efficiency . Systems should be efficient to use, so that users can quickly increase their productivity. 3. Memorability . Systems should be easy to remem- ber, so that users can quickly reacquaint them- selves with the system if time has elapsed since they last used the system. 4. Errors . Systems should have low error rates; if users do make errors, they should be quickly cor- rectable. 5. Satisfaction . Systems should be pleasant to use, so that users are not reluctant to work on them. Usability supports, rather than hinders, people’s creativity. Three general principles help to ensure usability:
APA (American Psychological Assoc.)
Jones, S., Sage eReference (Online service), & Sage Publications, inc. (2003). Encyclopedia of New Media : An Essential Reference to Communication and Technology. Thousand Oaks, CA: SAGE Publications, Inc.