AP239 ed3 Technical Architecture AP239 ed3 Technical Architecture

AP239 ed3 will implement the STEP Extended Architecture, providing the several components to populate the several layers of this architecture, as described in the figure bellow:

Note: a next step (ed4 ?) will be to provide a full-SysML model from Activity Model to Core Model, with mappings between layers.

Harmonization WP (Core Model development) Harmonization WP (Core Model development)

First project activities are focused on the harmonization of the information model to be shared by AP239 ed 3 with other STEP Application Protocols (including AP242 ed2).

This is seen as a key step towards interoperability between STEP Application Protocols (APs), and as an anabler for the "Through life cycle interoperability" targetted by stakeholders (industry and governmental agencies).

This work is conducted in the context of "STEP enhanced architecture", and the expected outcomes are a set of Core Technical Capabilities (CTCs) descibed in SysML langage and mapped to the STEP Application Reference Model (ARM). The model-based approach provided by the "STEP enhanced architecture" is seen as a significant step forward, as mappings from business objects to the underliying information components will be supported by SysML diagrams, enabling consistency and increased quality. 

NB: each AP will have its own Domain Model, mapped to the Information Model illustrated here above.

This harmonization work aims also at enabling the linkage between AP239 ed3 and the ILS specifications (AIA-ASD S-Series and SAE GEIA-STD-0007), to be done through the future AP239 ed3 Domain Model.

The Harmonization work is divided in two batches, Batch 1 from May 2017 to March 2018, and Batch 2 from April 2018 to July 2019.


Results of this work will be proposed for validation to ISO/TC 184/SC 4/WG 12 (Part 4000 Committee Draft Ballot planned in November 2019)