Object browsing Question based retrieval Selecting questions from a database can be done through a query facility within the database, which retrieves questions satisfying the selection criteria. This selection can be done through keywords or subject matching. At this stage of the implementation, content based searching for questions is not possible. Figure 6 shows a property based question retrieval. The user has to enter the subject of questions to be retrieved.
Questions browsing Another retrieval technique is based on database browsing.
Users are presented with a complete list of questions in the database. The user can select a particular topic, and then within each topic, the questions can further be selected and chosen. This technique will be very useful when combined with the object based retrieval, as the object based searching lists an object. Based on the selected object, a number of questions can be chosen either manually or randomly. Figure 7 shows an example of question browsing retrieval technique.