- 7.1 Introduction
- 7.2 Five Key Issues
- 7.3 Data Recording
- 7.4 Interviews
- 7.5 Questionnaires
- 7.6 Observation
- 7.7 Choosing and Combining Techniques
The main aims of the chapter are to:
- Discuss how to plan and run a successful data gathering program.
- Enable you to plan and run an interview.
- Enable you to design a simple questionnaire.
- Enable you to plan and execute an observation.
This chapter presents some techniques for data gathering which are commonly used in interaction design activities. In particular, data gathering is a central part of establishing requirements, and of evaluation. Within the requirements activity, the purpose of data gathering is to collect sufficient, accurate, and relevant data so that a set of stable requirements can be produced; within evaluation, data gathering is needed in order to capture users' reactions and performance with a system or prototype.
In this chapter we introduce three main techniques for gathering data: interviews, questionnaires, and observation. In the next chapter we discuss how to analyze and interpret the data collected. Interviews involve an interviewer asking one or more interviewees a set of questions which may be highly structured or unstructured; interviews are usually synchronous and are often face-to-face, but they don't have to be. Questionnaires are a series of questions designed to be answered asynchronously, i.e. without the presence of the investigator; these may ...