MBSE, Arcadia, and ATICA

Model-based systems engineering (MBSE) keeps system information in a structured model instead of distributing it across loosely connected documents. The model provides a shared source for engineering information and supports activities such as document generation, configuration management, and safety analysis.

Capella is an MBSE workbench based on the Arcadia method. Arcadia organizes a system model into four main engineering layers:

Layer	Purpose
Operational Analysis	Describes the operational context and activities before introducing the system.
System Analysis	Defines the system in its context and the functions it must perform.
Logical Architecture	Decomposes the system and its functions into a logical design.
Physical Architecture	Describes how the logical design is implemented.

ATICA4CAPELLA extends Capella with safety and reliability information. For example, it adds:

• failure conditions associated with system functions;
• functional failures in Logical Architecture;
• failure modes in Physical Architecture;
• analysis tables and diagrams for FHA, FTA, and FMEA workflows.

ATICA4CAPELLA is supplied as one commercial bundle with three modules:

Module	Role
MBSA	Provides the basic safety metamodel.
FTA	Provides the Fault Tree Analysis metamodel and diagrams.
Reliability	Provides the reliability-analysis capabilities and is identified as ATICA_RAF in Capella.

Customers receive all three modules together; they are not separate purchasing options. A two-week trial is available through a web-based Capella environment.

The resulting analysis information remains linked to the system model. M2Doc can then use templates to generate Word documents from that model.

For a more detailed mapping of ATICA information to Capella layers, see Analysis Layers and Relationships.

Continue

1. Install ATICA4CAPELLA.
2. Prepare the functional breakdown before starting an ATICA analysis workflow.
3. Activate the required ATICA viewpoints.