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Systems Analysis Workgroup
Overview
The Systems Analysis Workgroup is formed under the SysML Assessment and Roadmap Working Group to research and gather requirements for seamless and integrated analyses of complex systems across their lifecycle. This workgroup focuses on the system analysis challenge stated in INCOSE Insight article (Vol 18, Issue 2, Aug 2015) Evolving SysML and the System Modeling Environment to Support MBSE that states:
The next-generation modeling language must include precise semantics that avoid ambiguity and enable a concise representation of the concepts. SysML currently leverages the UML metamodel for much of its semantic foundations. The language must derive from a well-specifed logical formalism that can leverage the model for a broad range of analysis and model checking. This includes the ability to validate that the model is logically consistent, and the ability to answer questions such as the impact of a requirement or design change, or assess how a failure could propagate through a system. The language and tools must also integrate with a diverse range of equation solvers and execution environments that enable the capture of quantitative data.
Goals
The System Analysis Workgroup is pursuing the following goals for SysML 2.0:
Analysis must be seamless integrated with system development and operation
Support various types of system analyses and execution tools
Manage analysis models and relate results to decisions
Improved user interaction to define/generate, execute, archive analysis models (analysis lifecycle)
Example Use Cases
Elaborating a SysML Block with a behavioural model described in a different language (e.g. Modelica) and keeping the interfaces in synch
Rendering a SysML diagram on a lightweight / web based tool
Reading SysML models by analysis tools, for example, making sure the model conforms to some pre-defined rules
Linking SysML elements with external elements such as requirements or test cases
Model transformation rules (UPDM→SysML, SysML→UML)
and more…
Status Quo
No cross-disciplinary traceability
Different (proprietary) data formats
Need to capture multi-disciplinary engineering data and relationships in a common data format
No standard
API to access SysML data
No standard Web
API to access SysML data
No standard Query
API to perform complex queries on SysML data
Limitations of SysML
SysML data is currently not available:
Derived Requirements for Interoperability
System Modeling Environment (SME) should support:
a data format suitable for describing graphs
a non-proprietary data format
a widely adopted data format
Standard Web
API to access SysML data
Standard Web
API supporting complex queries
Key Features of New Concepts
Recommended Standards for Interoperability
-
Metadata (semantics) in the System Modeling Environment (SME) should be defined in RDF vocabularies (
W3C standard
RDF Schema) and shape constraints (
W3C standard
SHACL)
Web API of the System Modeling Environment (SME) should be RESTful and conform to the
W3C standard
Linked Data Platform
Query API of the System Modeling Environment (SME) should conform to the
W3C standards
SPARQL and
SPARQL Protocol
Review Documents
Prototypes to demonstrate feasibility
Open-source OSLC and Linked Data solutions available at
GitHub ld4mbse
SME/SysML v2 Service requirements (e.g. functions) to support interoperability
Most services listed in the spreadsheet are useful for supporting data traceability/interoperability.
Services to create, read, update, and delete links between tools
Services to create, read, update, delete, and execute transformations to/from SysML models
Services to export and import unstructured and structured data
Services to create, update, delete, and execute model elements and patterns
Services to create, resd, update, and delete viewpoints
Services to create, read, update, delete, and execute model queries to support visualization and analysis
Services to generate and manage views
Services to create, read, update, delete, and execute model validation rules to validate input data and model
Services to create, read, update, delete, and execute analytical models
Services to manage model metadata
Services to manage changes to model
Services to create, read, update, delete, and execute workflows and notifications
Presentations
System Analysis Workgroup Team
Last updated Apr 19, 2016