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Create Simple Decision Tree

1. Sign In

Becoming a superhero is a fairly straight forward process:
After entering the app.decisionrules.io page, the login screen will be displayed.
There are two options for user login. Sign in with:
  • email and password
  • Google Account (SSO)
After logging in to the application, the Dashboard will be displayed.

2. Go to Decision Trees

To go to the Decision Trees, click on the Decision Trees tab. After clicking on the link, a page with all already created decision trees will be displayed.

3. Create a New Decision Tree

To create a new decision tree, click the button
. After clicking, you can choose between SAMPLE TREE and EMPTY TREE. Choosing either one will create the new decision tree and its detail will be displayed automatically.
In our case, we will choose an empty tree to walk you through the whole process.

4. Create First If Block

Click on create business condition.

5. Specify Condition Inside If Block

1. Click on the first add button inside the if block.
2. Dropdown will be shown.
3. Click on condition.
4. Click on the orange dropdown. Here you will choose an input attribute that will later be evaluated when solving the decision tree.
5. For simplicity sake, the only input attribute is the "Input attribute" created automatically, when choosing the empty decision tree. Click on the "Input attribute".
To learn more about the Input/Output Model, click here
6. Now click on the empty... text to edit the value.
7. Now type in a value to which we will compare the input once solving the decision tree. Let's write "learning" for example. To save the value either click on the save button or press enter.
8. Now click on the second add button inside the if block.
9. Click on then.
10. Click on add result.
11. Once again, click on the orange button saying "not set" and choose the only Output attribute which was automatically created and is called "Output attribute".
12. Click on the empty... text and fill in the result value as with the if condition.
Great, you now know how to create a simple condition
🎉
.

6. Create Second If Block

To simplify the process, you can click on the settings icon of the first If block and select clone.
This will create an exact copy of the If block down below.
The only thing to do now is to change the values inside the newly created If block.
These two If blocks are very similar to the If and Else If behavior, if you are familiar with programming concepts.

7. Create Else Block

Finally we create an Else block. The Else block will be executed whenever none of the above If blocks evaluate to true. In our case, if the Input Attribute is anything else than the value "learning" and "procrastinating".
Now click on the
button under the Else If block and add another Else block.
Now inside the last Else block simply add Then block and fill it out with whatever value you like.

8. Test It!

Simply click on the test bench in the bottom bar
.
Type "learning" in the Input Property and click on
.
You can see that the first block was evaluated.
Inputting the word "procrastinating" will return "mission failed".
Finally inputting anything else than these two word will return "unexpected output".
More information can be found here.