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Overview

PhixFlow Entity Relationship Diagrams (ERDs) define the logical structure of the data in your application. "Entities" represent the things in the world that you want to represent as data.

The ERD Window Layout

Here is a simplified view of the ERD editor.window:

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1. The Toolbar toolbar provides ERD specific options, such as displaying the available table that can be added data tables that you can add to your ERD and options for creating a new tablescreen for your data.
2. The Repository browser, can list all of the available tables in your application and any associated packages. Select Tables from the toolbar to display this area. 
3. The Canvas area where the ERD will be configured. Tables can be added by:
4. Dragging a Table from the toolbar onto the canvas.
Clicking Tables from the toolbar and dragging a  
5. On the toolbar, click

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    to list all available tables in the repository pane on the right. 
6. The main part of the window is the canvas, where you create the ERD.
   • To add a new table, from the toolbar, drag the 

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      icon onto the canvas.
   • To add an existing table, on the toolbar, click 

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     . PhixFlow lists the available tables in the repository. Drag a table from the repository onto the canvas.
   Excel documents can be dragged
   • To add an Excel or CSV spreadsheet, drag it directly onto the canvas
   and will be imported automatically
   • . PhixFlow imports the data and uses it to create a new table.
7. The Tables tables and Relationships, are displayed on the canvas. A Table Shows the relationships between them.
   • A table is represented as a box, containing a list of all of the attributes it contains
   within it
   • and
   the
   • their associated data type.
   • A
   relationship between two tables is displayed as a line connecting
   • line connecting tables represents the relationship between them. The line connects the primary key of one table to a foreign key
   of
   • in a
   second table. This is discussed in more detail in 
   • different table; see Relationship.

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Overview

PhixFlow Entity Relationship Diagrams (ERDs) define the logical structure of the data in your application. "Entities" represent the things in the world that you want to represent as data.

ERD Example

The following example shows an ERD for a school. Here the school has entities: departments, teachers, students, classrooms and so on. All these entities are represented as tables and the lines connecting them show their relationships to one another. We can see from this diagram that a School Department has many Class Rooms and Teachers. This example is covered in detail in Understanding ERDs. 

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Creating an ERD

1. Click the ERD link on On your application's home page, click the Data link to list the existing ERDs. Alternatively you can click the data link from the header bar.
2. This lists all existing ERD diagrams and provides an Add button for creating new ERDs.

Open Existing ERD

1. Click the ERD link on  
2. Click the 

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   button to create a new ERD.

Opening an ERD

1. On your application's home page.
2. This lists all existing ERD diagrams.
3. Double click any item , click the Data link to list the existing ERDs. Alternatively you can click the data link from the header bar. 
4. Double-click any ERD to open it.

Already Have Data?

If you have data that you wish to import into PhixFlow, such as a database or csvAPI, you will need to use an Analysis analysis model to import it. See Importing Data and Importing Data Through an API.Analysis Models will allow This allows you to configure connectors to access your existing data sources and store the data as tables in PhixFlow's own database. see Importing Data and Importing Data Through an API.

You can also use an analysis model to set up more bulk processes to manipulate large volumes of data before it is presented to your users; see Analysis Model PropertiesModels for Batch Processing Data.

What's Next?

Understanding ERDs covers ERDs in more depth to help you design your own ERDs and views to display your data.

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