Fig. 4
From: BigQ: a NoSQL based framework to handle genomic variants in i2b2
Screenshot of the BigQ-plugin with user interactions highlighted. (1) The user creates a query by dragging and dropping different blocks inside the plugin’s workspace, with each block representing a query on a single attribute that will be performed by the BigQ-cell. The query is defined by connecting the blocks to each other. (2) A patient set, previously created with a standard i2b2 query, is dragged and dropped on the Patient Result Set Drop (PRS Drop) block to define the patients whose exomes will be queried. (3) By double-clicking the standard query blocks (in yellow) it is possible to specify their query logic and query parameters. (4) The query process can start and each block executes its query sequentially, calling the BigQ-cell. (5) When all blocks have performed their query, the user can visualize the results by double-clicking the Patient Result Set Table (PRS Table) block