ATL

A new architecture for software.

A system is composed of a number of nodes.

Each node is composed of a section of code in a standard programming language.

Data is sent between nodes through queue connections.

All nodes execute continuously and in parallel.

Suitable for systems running on a single computer, or distributed systems across multiple sites.

This is essentially the same model as the internet, but applied to the individual program level.




Benefits

Mixing of different languages for different nodes

Beneficial for an existing module to process data from new systems



Operations

	Determine the number of items waiting in an input queue

	Retieve a data item from an input queue

	Output a data item to an output queue
		
	Start a node 

	Connect a queue to existing running nodes