# Nodes

There are 3 types of nodes in Helmut 4. Condition nodes, action nodes and output nodes. Each node can be used as often as required within a stream, but the sequence of nodes should represent a logical connection. For example, after you have created a project (create project action), it makes no sense to try to export this project with AME (job render in AME action) because AME only understands files or sequences from a project, and not the project itself.

To get an overview about all used nodes within the stream designer it is helpful to trace the current version of certain nodes. Therefore the suffix with the version number (e.g. V2) is part of the node’s name. The user can always be aware of the current version and can check possible existing updates of a node. 

![Helmut4 Node in general](/files/KSYNwse5rIE3xcjynx8M)


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