Streaming Component Combinators

These Wiki pages are dedicated to the Streaming Component Combinators framework, or SCC for short.

The SCC framework is a collection of streaming components and component combinators. The components operate on data streams, usually producing output before all input is known. Multiple components can be grouped together into a compound component using one of the combinators. The resulting framework can be seen as a domain-specific language for stream processing.

Features

• Data streams are homogeneous: each stream is a sequence of values of the same type.
• Components can have multiple inputs and multiple outputs, so they can form branching component networks.
• Every component, primitive or compound, is assigned a type based on its interface.
• Components are synchronized through data flow alone; there is no global time notion.
• The framework is deterministic:
  • No stream can be consumed by more than one component.
  • Only one stream can feed a component input at a time.

Documentation

• Architecture
• Tutorial
• Haddock reference
• Paper describing the original design

Links

• The latest release of SCC can be found at Hackage.
• Development version is available in a Darcs repository at http://code.haskell.org/SCC/.