This section contains a visualization of the database model for the following case. A workbench to perform bioinformatics analysis. Data should include: 1) User information, 2) Tools (including required types of data and formats for input and output and parameters), 3) Data (references to actual files, that will be stored elsewhere, should include data types and formats), 4) Compatibility between tools and data types and formats, 5) Authorization rules for users/data/tools.