Collect basic information and notice a problem mainly in queries and query results. Select a major problem for the query for a certain goal, can answer the question.
Data compiled by the Foundation and observed problems, mainly in the questionnaire. Call for location and then select the key issue for the queries made for a certain goal can answer questions.
The data were collected by basic and noticed problems mainly in the questionnaire inquiry and location, and then choose the important problems for queries do for to a certain goal can answer the question.