Information technology - Common Logic (CL) - A framework for a family of logic-based languages

Designation Number:
CSA ISO/IEC 24707
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
New Standard
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This document specifies a family of logic languages designed for use in the representation and interchange of information and data among disparate computer systems.

 

The following features are essential to the design of this document.

 

— Languages in the family have declarative semantics. It is possible to understand the meaning of expressions in these languages without appeal to an interpreter for manipulating those expressions.

— Languages in the family are logically comprehensive – at its most general, they provide for the expression of arbitrary first-order logical sentences.

— Languages in the family are translatable by a semantics-preserving transformation to a common XML-based syntax, facilitating interchange of information among heterogeneous computer systems.

 

The following are within the scope of this document:

 

— representation of information in ontologies and knowledge bases;

— specification of expressions that are the input or output of inference engines;

— formal interpretations of the symbols in the language.

 

The following are outside the scope of this document:

 

— specification of proof theory or inference rules;

— specification of translators between the notations of heterogeneous computer systems;

— computer-based operational methods of providing relationships between symbols in the logical “universe of discourse” and individuals in the “real world”.

 

This document describes Common Logic’s syntax and semantics.

 

This document defines an abstract syntax and an associated model-theoretic semantics for a specific extension of first-order logic. The intent is that the content of any system using first-order logic can be represented in this document. The purpose is to facilitate interchange of first-order logic-based information between systems.

 

Issues relating to computability using this document (including efficiency, optimization, etc.) are not addressed

Project need:

To align Canadian requirements with those of the respective international standards being proposed for adoption. To maintain alignment between Canadian information and communication technology standards and each respective international standard.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.