VEC Implementation Guidelines

The VDA recommendation 4968 / prostep ivip recommendation PSI21 “Vehicle Electric Container (VEC)” defines an information model, a data dictionary, a XML schema and a RDF onthology derived from and compliant to the model.The intention of the model was to cover a wide range of use cases and application scenarios. For this reason the specification had to be kept generic in some degree and in some aspects. However, for specific scenarios and / or use cases a more detailed description on “how the different pieces fit together” is possible.

To avoid dialects in the different VEC implementations, further guidelines or recommendations are necessary. This collection of implementation guidelines contributes to the unambiguous interpretation of the VEC standard. For various wiring harness definition or electrical system aspects and scenarios the correct instantiation is shown and specific hints for correct usage are given.

Contributing and Proposals

If you find any bugs in the implementation guidelines or if you have a request for a specific topic, or if you would like to contribute your own tutorials please drop us an issue on the PROSTEP JIRA. If you don’t have an account there yet, see here for the procedure to get one.

Additional Resources

Currently Under Review

The following table contains pages currently under review.
TitleLatest Content Addition / CommitCreatedChanged
Wires#1143: Adapted to structural changes / deprecations of WireElement / WireElementSpecificaiton relations in VEC version 2.2.0
Latest Commit: Updated wire guideline to V2.2 wire structure. (#1143)
2019-03-072025-11-04
Architectural Layer#573: Added Implementation Guideline for the Architectural Layer.
Latest Commit: Add guideline for network layer (#1147)
2025-11-022025-11-03
Internal Connectivity#915: New generic concept for E/E component with internal connectivity.
Latest Commit: Created hard links for classes introduced in V2.2
2025-07-082025-10-30
Connectors#957: Improved cavity mapping for modular connectors.
Latest Commit: Created hard links for classes introduced in V2.2
2018-11-292025-10-30
Harness (KBL/VEC Mapping)Started Implementation Guideline for Mapping a Harness in the VEC
Latest Commit: Added paragraph about variant management. (#1142)
2025-02-132025-08-26
RoutingKBLFRM-1256: Routing Variants in the VEC
Latest Commit: KBLFRM-1256: Added routing implementation guideline.
2024-12-232024-12-27

Latest Changes

The following table contains lately changed pages, sorted descending by last change.
TitleLatest Content Addition / CommitCreatedChanged
Wires#1143: Adapted to structural changes / deprecations of WireElement / WireElementSpecificaiton relations in VEC version 2.2.0
Latest Commit: Updated wire guideline to V2.2 wire structure. (#1143)
2019-03-072025-11-04
Architectural Layer#573: Added Implementation Guideline for the Architectural Layer.
Latest Commit: Add guideline for network layer (#1147)
2025-11-022025-11-03
Internal Connectivity#915: New generic concept for E/E component with internal connectivity.
Latest Commit: Created hard links for classes introduced in V2.2
2025-07-082025-10-30
Connectors#957: Improved cavity mapping for modular connectors.
Latest Commit: Created hard links for classes introduced in V2.2
2018-11-292025-10-30
XML / XSD RepresentationKBLFRM-1232: Moved section from model to guidelines.
Latest Commit: Published V2.2.0
2024-02-222025-09-19
General Structure of VEC Files & DocumentsKBLFRM-996: Integrated Review Comments for the whole page
Latest Commit: Published V2.2.0
2020-06-222025-09-19
Harness (KBL/VEC Mapping)Started Implementation Guideline for Mapping a Harness in the VEC
Latest Commit: Added paragraph about variant management. (#1142)
2025-02-132025-08-26
ECUs, EE-Components and Component BoxesLatest Commit: Addeds some notes for guidelines using the pre 2.2 internal connectivity.2019-05-052025-07-11
RelaysLatest Commit: Addeds some notes for guidelines using the pre 2.2 internal connectivity.2018-11-292025-07-11
Multi FusesLatest Commit: Addeds some notes for guidelines using the pre 2.2 internal connectivity.2019-03-072025-07-11

Table of Content