Figure 5
MartExplorer GUI implementing user abstractions using a modified tree. As users click on each node of the tree, they are presented with input fields for the data required for that part of the query. As filters and attributes are chosen, they are moved onto the tree below their respective nodes, giving the user a single, interactive view of an entire query (shown on the left). Once all required data have been provided, the output format is chosen and the results are exported.
