The COMPARE State of the Art report gives an overview of existing component models.

Besides their core features, the report investigates their support for the real-time and embedded domain.

Many aspects must be taken into account:

• Basic properties of the model, for instance how required and provided interfaces are specified or whether it supports hierarchical composition.
• Component interaction: i.e. the interaction mechanisms between components, e.g. events or method invocation.
• Possibilities to describe non-functional requirements in particular relating to real-time.
• Underlying execution framework, e.g. its footprint and its availability on certain real-time operating systems and processor combinations.
• Packaging, deployment and configuration.
• Development environment
• Summary with the pros and cons of the approach.

  In addition this report shortly presents underlying middleware technology suitable for RT/E, in particular RT CORBA and its dynamic scheduling mechanisms.