Learning about usability [closed]

1. What are the five 5 goals of usability?
2. What is the difference between open and closed questions?
3. Why are closed questions important?
4. What is the purpose of a closed ended question during a needs assessment?

What are the five 5 goals of usability?

An understanding of the five characteristics of usability – effective, efficient, engaging, error tolerant, easy to learn – helps guide the user-centered design tasks to the goal of usable products.

What is the difference between open and closed questions?

Open-ended questions are those that provide respondents with a question prompt and provide them a space in which to construct their own response. Closed-ended questions, alternatively, provide a question prompt and ask respondents to choose from a list of possible responses.

Why are closed questions important?

Closed-ended questions are often good for surveys, because you get higher response rates when users don't have to type so much. Also, answers to closed-ended questions can easily be analyzed statistically, which is what you usually want to do with survey data.

What is the purpose of a closed ended question during a needs assessment?

Closed Ended Questions have very distinct responses, one can use these responses by allocating a value to every answer. This makes it easy to compare responses of different individuals which, in turn, enables statistical analysis of survey findings.