Summary

Scope-objective

This Recommendation defines how to use ASN.1 embedded in SDL. The intention is to allow an SDL user to declare SDL types using directly ASN.1 data definitions and type constructors, and to describe SDL actions using directly the ASN.1 value constructors. This Recommendation is an extension of Recommendations Z.100 (1999) and Z.105 (1999).

Coverage

This Recommendation details the extensions to the Z.100 production rules related to data definition, type constructor and extended primary expression.

Applications

The main area of application of this Recommendation is the specification and design of telecommunication systems. ASN.1 embedded in SDL permits a coherent use of ASN.1 when building SDL models.

Status and stability

This Recommendation is the complete reference manual describing the in-line use of ASN.1 in SDL. It has to be considered jointly with Recommendations Z.100 (1999) and Z.105 (1999).

Changes to either Recommendation X.680, or Recommendation Z.100 or Recommendation Z.105 may require modifications to this Recommendation.

Associated work

–           Recommendation Z.100 (1999): SDL;

–           Recommendation Z.105 (1999): SDL combined with ASN.1 modules;

–           Recommendation X.680: ASN.1.