To use QbB look at the list of records below.
If you would like a record included in your query, click once in the box alongside the record. A tick will appear.
If you don't want the record click twice and a cross will appear.

When you have selected/rejected a few records try clicking 'Make a Query' which will generate a query matching your records. All the records matched by the query will be highlighted in blue.

If the query isn't right find some records it has wrongly classified and explicitly accept or reject them then press 'Make a Query' again.

I'm planning to upgrade QbB to allow you to upload your own data, but for now you must choose between two (very small) example databases below. However, you can download QbB to use in your own web applications.

You can read more about QbB at my research topics page at: http://www.hcibook.com/alan/topics/qbb/

For more information about data analysis, statistics and data mining see www.meandeviation.com