Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Usability principles by Dix usability evaluation.
| Usability Principles by Dix | Evaluator A | Evaluator B |
|---|---|---|
| Predictability | 5 | 5 |
| Synthesizability | 4 | 4 |
| Familiarity | 4 | 4 |
| Generalizability | 4 | 5 |
| Consistency | 5 | 4 |
| Dialog initiative | 4 | 3 |
| Multi-threading | 2 | 3 |
| Task migratability | 3 | 3 |
| Substitutivity | 2 | 2 |
| Customizability | 1 | 1 |
| Observability | 3 | 4 |
| Recoverability | 4 | 4 |
| Responsiveness | 4 | 5 |
| Task conformance | 5 | 3 |
