ISO Standards

ISO/IEC 18023-1, SEDRIS -- Part 1: Functional specification
This document addresses the concepts, syntax and semantics for the representation and interchange of environmental data. It specifies a data representation model for expressing environmental data; specifications of the data types and classes that together constitute the data representation model; and an application program interface that supports the storage and retrieval of environmental data using the data representation model. It also specifies topological, rule-based, and other constraints that ensure appropriate data can be available for applications that rely on automatically generated behaviours when interacting with environmental data.

ISO/IEC 18023-2, SEDRIS -- Part 2: Abstract transmittal format
This document specifies the abstract syntax of a SEDRIS transmittal. Actual encodings (e.g. binary encoding) are specified in other parts of ISO/IEC 18023.

ISO/IEC 18023-3, SEDRIS -- Part 3: Transmittal format binary encoding
This document defines a binary encoding for DRM objects specified in ISO/IEC 18023-1 according to the abstract syntax specified in ISO/IEC 18023-2.

ISO/IEC 18024-4, SEDRIS language bindings -- Part 4: C
ISO/IEC 18024-4 specifies a language-dependent layer for the C programming language. ISO/IEC 18023-1 specifies a language-independent application program interface (API) for SEDRIS. For integration into a programming language, the SEDRIS API is embedded in a language-dependent layer obeying the particular conventions of that language.

ISO/IEC 18025, Environmental Data Coding Specification (EDCS)
ISO/IEC 18025:2004 provides mechanisms to unambiguously specify objects used to model environmental concepts. To accomplish this, a collection of nine EDCS dictionaries of environmental concepts and a functional interface are specified.

ISO/IEC 18041-4, EDCS language bindings -- Part 4: C
ISO/IEC 18041-4 specifies the binding of the application programming interface (API) defined in ISO/IEC 18025 to the C programming language. The Environmental Data Coding Specification (EDCS) is a mapping between data and meaning. Data in a system may need to be identified as to purpose, metric and usage. This specification defines a standard set of terms for providing this information. ISO/IEC 18041-4:2007 defines a standard binding for the C computer programming language.

ISO/IEC 18026, Spatial Reference Model (SRM)
ISO/IEC 18026 specifies the Spatial Reference Model (SRM) defining relevant aspects of spatial positioning and related information processing. The SRM allows precise and unambiguous specification of geometric properties such as position (location), direction, and distance. The SRM addresses the needs of a broad community of users, who have a range of accuracy and performance requirements in computationally intensive applications.

ISO/IEC 18042-4, SRM language bindings -- Part 4: C
ISO/IEC 18042-4 specifies a language-independent application program interface (API). For integration into a programming language, the Spatial Reference Model (SRM) API is embedded in a language-dependent layer obeying the particular conventions of that language. ISO/IEC 18042-4:2005 specifies such a language-dependent layer for the C language.

What is ISO?

The International Organization for Standardization (ISO) is the world's largest developer and publisher of International Standards. ISO is a worldwide federation of the national standards institutes of 160 countries, one member per country, with a Central Secretariat in Geneva, Switzerland.

Established in 1947, ISO is a non-governmental organization that forms a bridge between the public and private sectors. On the one hand, many of its member institutes are part of the governmental structure of their countries, or are mandated by their government. On the other hand, other members have their roots uniquely in the private sector, having been set up by national partnerships of industry associations.

ISO has developed over 17500 International Standards on a variety of subjects, and some 1100 new ISO standards are published every year.

The mission of ISO is to promote the development of standardization and related activities in the world with a view to facilitating the international exchange of goods and services, and to developing cooperation in the spheres of intellectual, scientific, technological and economic activity.

ISO's work results in international agreements which are published as International Standards.

ISO Standards Support

These Standards are the joint property of ISO/IEC and the SEDRIS Organization, and may be freely downloaded from the SEDRIS standards web site or purchased directly from ISO's Products web site.

Additional information related to SEDRIS technologies and development of SEDRIS standards may be found at the SEDRIS web site or at the ISO/IEC JTC 1/SC24's Working Group 8 web site.

What is IEC?

The International Electrotechnical Commission (IEC) is the world's leading organization that prepares and publishes International Standards for all electrical, electronic and related technologies - collectively known as Electrotechnology.

Wherever you find electricity and electronics, you find the IEC supporting safety and performance, the environment, electrical energy efficiency and renewable energies. The IEC also manages conformity assessment systems that certify that equipment, systems or components conform to its International Standards.

What is JTC 1?
JTC 1 is a joint technical committee of ISO and IEC.  The scope for work in JTC 1 is the standardization in the field of Information Technology.  JTC 1 is composed of 18 SubCommittees, 4 Special Working Groups and 1 Working Group on IT Governance.  JTC 1 members are National Bodies. There are 39 Participating (P) Members and 45 Observers (O) Members. Other organizations participate as  Liaison Members. There are 14 Liaison members Internal to ISO and IEC, and 22 External Liaison members.