IEC 62656-1:2014

Overview

IEC 62656-1:2014 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the logical structure for product ontology data parcels using spreadsheets. This first part of IEC 62656 defines a standardized spreadsheet interface aimed at simplifying the definition, transfer, and registration of product ontologies. The standard provides a comprehensive framework for representing product ontology data in a structured spreadsheet format, promoting interoperability and consistency in ontology management across various applications.

This standard facilitates the creation and exchange of reference dictionaries and library instance data, ensuring alignment with established data modeling languages such as EXPRESS (per IEC 61360-2/ISO 13584-42) and incorporating semantic mappings compatible with DIN 4002. Its methodical approach supports the detailed structuring, versioning, and semantic referencing necessary for complex product ontology data.

Key Topics

• Logical Structure for Spreadsheets
  IEC 62656-1 defines the specifications for the layout and logical organization of spreadsheets used as data parcels. This includes mandatory header sections, instruction columns, and data sections structured for consistent representation of ontology elements.

• Meta Dictionary and Meta-Model
  The standard introduces a meta dictionary to facilitate the definition and transfer of reference dictionaries as instance data. It further defines a meta-model that enables handling meta-meta-dictionaries, supporting hierarchical and layered ontology definitions.

• Semantic Mapping and Data Types
  It specifies the mapping between spreadsheet-expressed dictionary data and the EXPRESS modeling language, ensuring syntactic and semantic compatibility. The standard also extends type systems with specialized data types and supports complex constructs such as classification trees, property specialization, and unit variables.

• Parcellized Ontology Model (POM)
  The POM concept underpins this standard, enabling the modular packaging of ontology data parcels. This model supports layering, parcel identification, version control, and conformance classes, allowing organized and scalable ontology management.

• Use Cases and Scenarios
  Practical scenarios include dictionary parcel formats for ontology definitions, library parcel formats for instance data, and higher-layer parcel formats for complex ontology structures. These use cases demonstrate how product ontologies can be effectively created, shared, and maintained.

Applications

IEC 62656-1:2014 is instrumental in industries and domains where standardized and interoperable product ontologies are critical. Key applications include:

• Product Data Management
  Facilitates harmonized product descriptions, improving data exchange between manufacturers, suppliers, and clients.

• Knowledge Representation in Engineering
  Supports engineers and designers in creating consistent, machine-readable ontologies for product components and systems.

• Supply Chain Integration
  Enables seamless transfer and registration of product ontologies across supply chain partners, increasing efficiency and reducing errors.

• Digital Twin and IoT Systems
  Provides structured ontology data essential for digital twins and Internet of Things (IoT) platforms to maintain accurate and up-to-date product information.

• Standardized Data Exchange Formats
  Aligns with other IEC and ISO standards, creating unified formats for product information that can be easily integrated into enterprise software solutions.

Related Standards

• IEC 61360-2 / ISO 13584-42
  Defines the EXPRESS modeling language used as a reference for mapping product ontology data within IEC 62656-1.

• ISO 13584-25
  Provides additional elements referenced for detailed data modeling in product ontologies.

• DIN 4002
  Offers semantic reference points to ensure basic semantic mapping consistency with the IEC 62656-1 spreadsheet data formats.

• IEC 62656 (other parts)
  Subsequent parts of the IEC 62656 series expand on the ontology register and transfer process, complementing the logical structure defined in Part 1.

Keywords: IEC 62656-1, product ontology, data parcels, spreadsheets, logical structure, meta dictionary, EXPRESS model, product data management, ontology transfer, standardized ontology register, IEC standards, product data exchange, semantic mapping.