Modeling and Simulating Software Architectures: The Palladio Approach

Component Repository Model: The Component Repository Model contains components and interfaces.

the Palladio approach differentiates between the design model and the analytical model.

While modules (Parnas 1972a) are thought to encapsulate design decisions and classes

Palladio is a software component modeling approach that focuses on the prediction of quality attributes of a software architecture.

There are several “knobs” to be “turned”: The architecture itself The execution environment The usage profile

we need information about three properties of a system: first, the structure of the system, including components, interfaces, and their dependencies; second, the deployment describing the mapping of components and connectors to virtual or physical resources, including a description of these resources; third, the control and data flows through the s

Component Allocation Model: The Component Allocation Model describes how components are deployed on hardware nodes.

The language offers the “vocabulary” to express software architectures with details required for simulation but allows modeling of software architectures according to general best practices.

Execution Environment Model: The Execution Environment Model defines hardware nodes and network and is described by the component deployer.