... in a yearly planner that they use. The planner simply has a day and times of 15 mins intervals and 5 columns. The columns are headed with the names of the three Dental surgeons. Data collection To understand the current system, three methods of data collections were considered. 1. Questionnaire to all staff Advantages Disadvantages Quick way of collecting information from large number of people. Difficult to plan questions to collect complex data Useful if people are not available for interviews Cannot probe responses. Useful if people work in different parts of the office. Some find it easier to give honest accurate answers. 2. Interview the staff Advantages Disadvantages If well planned and questions are structured in advance lot of detailed information can be captured. People may not be fully truthful. Allows probing of responses to seek clarification or ask additional questions. People may not feel comfortable being interviewed. Takes up lot of time. 3. Observe the staff doing their job. Advantages Disadvantages See unusual things that users may not be ...

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