2nd Release Candidate for SSP 2.0 is ready for review

The second candidate for the major releases SSP 2.0 is ready for final review.

The MA internal approval period will last until December 18th. In case of findings, please open an issue on https://github.com/modelica/ssp-standard. If there are no blockers detected, the MA will release SSP 2.0 afterwards.

Changes in 2.0.0

This major release of the SSP standard provides support for FMI 3.0, as well as other enhancements in response to new end-user requirements for architectural design, traceability, incremental development, and support of Modelica models as components.

SSP 2.0 is a major version release, however all SSP 1.0 conforming artifacts remain fully conforming to SSP 2.0. SSP 2.0 conforming artifacts are only conforming to the SSP 1.0 standard if they use a 1.0 version number and only use features available in SSP 1.0.

The following changes were performed as part of the 2.0.0 major release:

• Support for FMI 3.0
  • Support for the new basic data types: Float32/64, and [U]Int8/16/32/64. The binary data type was already supported in SSP 1.0.
  • Support for the new scheduled execution implementation kind in the component implementation attribute.
  • Support for clocks as a new connector kind, and clocked variables/connectors.
  • Support for arrays in connectors and connections in the SSD, as well as in the SSV and SSB file formats.
  • Support for structural parameters with the new connector kind structuralParameter.
  • Support for the redesigned alias variable handling in FMI 3.0.
• Architectural design features
  • The component source attribute is now optional to support the usage of system structure descriptions for simulation architecture design without available component implementations.
  • New connector kinds local, and constant are added to the specification, to support more encompassing interface specifications for components, and further parameter propagation.
  • Support for optional inner view connector coordinates, in addition to the outer view connector coordinates. This feature enables more advanced graphical editing of SSP models.
• Traceability and meta-data features

  • Integration of the MetaData element developed as part of the SSP Traceability layered standard into the core standard, supporting the integration of arbitrary meta-data and digital signatures into the SSP file formats.

  • Support for mixed content in annotations, as in FMI 3.0 and the SSP Traceability layered standard.

• Support for Modelica
  • Support in the core standard for Modelica models as components
  • Support for the mapping of complex Modelica types in interfaces to binary connectors in SSP
• General clarifications and bug fixes
  • Fix missing type of Connector name attribute in https://github.com/modelica/ssp-standard/pull/4
  • Clarify type conversion handling in https://github.com/modelica/ssp-standard/pull/21
  • Clarify uniqueness of root SSDs in https://github.com/modelica/ssp-standard/pull/23
  • Clarify hierarchical parameter name resolution in https://github.com/modelica/ssp-standard/pull/27

For full release notes see the SSP 2.0.0-rc.2 GitHub Release Page.