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Scribble is a simple text based language for describing interactions between multiple parties in the form of a Protocol.
The Protocol notation is intended to provide an abstract description of the communication behaviour, with addtional optional layers being used to describe assertions and other governance related information.
In the world of programming languages, the measure of the simplicity of a language is based on its representation of a simple 'hello world' example. The Scribble Protocol representation of such an example would be:
protocol HelloWorld { role You, World; Hello from You to World; }
The notation will be explained in more detail in this guide, but basically the protocol is named 'HelloWorld', and describes the communication behaviour between two roles (or parties). A single interaction has been defined, sending a message of type 'Hello' from role 'You' to role 'World'.
In the following chapter we will explore the main constructs of the protocol notation. Then we will explore a range of examples, before concluding with a brief overview of some more advanced constructs that are still under development.