» Glossary » Heuristic evaluation
The heuristic evaluation is a technique developed in the 90 to evaluate designs and detect usability, by Jacob Nielsen and Rolf Molich. It lies in the evaluation by several people (3 to 5 tends to be a good number) separately to share their result afterward.
One of the ways to classify the errors is the heuristic matrix that allow us to visualize quickly the more common errors:
The columns identify the errors: less to more commons errors are represented from left to right. The rows identify each one of the items to evaluate: the number of errors is represented top-down in increasing order.
By using a common classification for the problem and its importance, the data will be easier to process. For example, we could have a description such as:
- Problem description
- Design heuristic affected: could use the 10 usability heuristics, other set related to the domain, etc
- 0 – don’t agree this is a problem
- 1 – cosmetic problem
- 2 – minor usability problem
- 3 – major usability problem, it’s important to fix it
- 4 – catastrophe, it’s necessary to fix this
- How to conduct a heuristic evaluation, by Jacob Nielsen
- Introduction to heuristic evaluationntroduciendo la técnica, by Scott Klemler
- 10 usability heuristics