Analyse context of use
Collect and agree detailed information about:
- Who are the intended user and what are their task? (Why will they use the system? What is their experience and expertise?)
- What are the technical and environmental constraints? (What types of hardware will be used in what organisational, technical and physical environments?)
This information is an essential input to requirements and the planning of other usability methods. It may be collected at an early stage during planning and feasibility, or in more detail as part of the usability requirements.
- Ensure that all factors that relate to use of the system are identified before design work starts.
- Provide a basis for designing later usability tests
A good way to collect the information is to arrange a half-day meeting. Invite stakeholders who have knowledge about the intended users and usage. This may include:
- project manager
- user representative(s)
The first two are key areas. You will also need a facilitator with experience of the method and a person to record the information provided during the meeting.
To obtain information on the context of use, a detailed checklist will be needed (see below).
Before the meeting
- When using a detailed checklist, to avoid prolonging the meeting it is important to fill in advance any items that are not contentious and highlight the issues that need to be discussed.
- Provide all participants with a copy of the checklist.
At the meeting
Discuss and fill in each item on the context checklist. Try to obtain consensus where there is uncertainty or disagreement. If information is missing, agree how this can be obtained. Avoid prolonged discussion of minor issues.
After the meeting
Obtain any missing information. If the information is not easily available, arrange a field study to observe users in their work environment.
Circulate to all participants a summary of the conclusions, and the filled in checklist.
A description of the context of use, derived from the completed checklist.
- Introductory notes on the context of use analysis can be found on the baseline archive.
- Detailed information on usability context analysis and a comprehensive checklist can be found in the Usability Context Analysis Guide[600K] and forms[50K].
- Introductory notes to Context of Use analysis and worksheets in various spreadsheet formats have been produced by Baseline
- A simpler checklist can be found in the RESPECT Handbook.
This is a simple technique to use when most of the information is already known by the stakeholders.
- For the simplest systems, the context information can be collected as part of the stakeholder meeting, using a less structured process.
- If it is impossible to arrange a meeting, the information can be gathered by interviewing the stakeholders or using a questionnaire. This has the disadvantage that there is no opportunity to establish consensus on, and commitment to, the usage characteristics.
- In more complex situations where the information is not well-understood field studies and contextual design may be required to collect and analyse the information.
The initial context analysis may identify gaps that can be filled by user observation, interviews, survey questionnaires, or user participation in context of use analysis, focus groups or brainstorming.
This will be followed by other activities to elaborate the user and usability requirements, such as generating scenarios to provide examples of usage.
For a more comprehensive approach, see the book on contextual design.©UsabilityNet 2006. Reproduction permitted provided the source is acknowledged.