Exemplary onCore Unit

• This exemplary Unit adds two numbers and provides the result.

• Units have attributes which can be modified by the user – or other Units.

• Units can exchange data via Cables. Think of them as small 'tunnels' where data is able to travel between the Units.

• Cables are usually connected/disconnected by the user, but there are also situations where Cables between Units are automatically re-created.

• On the left and right side of each Unit there are small circles and triangles. These are the connection points of Cables and they are called Trigger Ports, Input Ports and Output Ports.

There are three types of Ports:

1. Trigger Port: Trigger the execution of a Unit (= Execute Trigger) or trigger the next Unit which is connected to one of the outgoing Triggers (= Success/Fail Trigger).
   See chapter → Unit Triggers & Events.

2. Input Port: These Ports accept data from the User or other Units. They can also represent the attributes of a Unit. Not all Input Ports can be modified by the User, some of them only accept data from other Units as their input, i.e. a Cable has to be connected to them (for example Structure-based Units). Once a Port is connected with a Cable, it can not be altered by the user anymore.
   See chapter → Unit Attributes.

3. Output Port: These Ports output data and may be connected to other Units.

Provider Unit

They only have one or multiple Output Ports and "provide" something.

Variable Getter, System Timestamp

Processing Unit

They have one or multiple Input and Output Ports and process or modify their input.

String Replace, String to Time

Consumer Unit

They only have one or multiple Input Ports and "consume" data.

Print String, Variable Setter