Creating a New Project
This guide explains users how to create a new project in ViziQuer, where the visual schema diagrams and diagrams with visual queries can be created.
To start using ViziQuer, log in to ViziQuer Playground or your Local Installation, see Getting Started for the login guidelines, if needed.
A project is a collection of visual schema and query diagrams. To enable the visual schema drawing and the visual query creation, the project needs to have a provided data schema (DSS schema), stored in the ViziQuer support database (technically - served by a Data Shape Server, DSS).
ViziQuer Playground has a list of data schemas pre-loaded. In Local Installation the local installation administrator needs to make sure that the desired schema is available in the DSS database.
The data schema parameter can be set up during the project creation time (e.g., by selecting the needed DSS schema from the project creation dialogue), or it can be set later within project's property dialogue.
On the "Projects" screen, click the "New project" button and the "Create project" form will appear.
In the "Create project" form follow one of the three options:
- A. Choose a data schema (DSS Schema) from the offered schema options
- B. Select a pre-defined example project (if available), or
- C. Choose to start an empty project and enter the project name (leave the project configuration for later):
Click "OK".
Click on the newly created Project and you will see the Diagrams view. On this view, you can work with diagrams and fine-tune the Project configuration settings, if necessary.
To configure (fine-tune) the Project settings, click the "gear" icon (Settings) at the top of the screen:
Choose at least the DSS Schema setting from the drop-down list. Other settings will get populated based on the chosen DSS Schema.
Note: You may also leave the DSS Schema setting blank and just configure the SPARQL Endpoint but in this case ViziQuer will lack schema information that is necessary for suggesting class and property names.
If you need to work with a custom SPARQL endpoint please refer to the "Knowledge Graph Schemas" section of the "Getting Started" page.
Once a project has been created, there are options of Creating Visual Queries and Exploring Visual Schema Diagrams.
The data schema of the project can be changed within the project's Settings dialogue. It is possible that different diagrams in the project are created in the context of different data schemas (this can be relevant, for instance, when collections of schema visualizations are created as sets of diagrams in a single project). Still, for each diagram to work in its data environment, this data environment needs to be set up, using the project's Parameters dialogue.
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Consider Wiki Home for further options in visual schema drawing and visual query creation.