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feat: add TC UNITS announcement and details
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10 changes: 10 additions & 0 deletions _about_pages/technical-committees.adoc
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Generalize and extend capabilities of the CalDAV/CardDAV Tester.


=== TC-UNITS: Contact information standards

Details: link:{{'/about/technical-committees/tc-units/' | relative_url}}[TC-UNITS Charter]

Provide international standards for:

* representation and encoding of units, quantities, and dimensions;
* mechanisms for encoding and interpretation of formulas that utilize units.

=== TC-VCARD: Contact information standards

Details: link:{{'/about/technical-committees/tc-vcard/' | relative_url}}[TC-VCARD Charter]
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---
layout: page
title: CalConnect UNITS Technical Committee
type: about
permalink: /about/technical-committees/:title
---

== CalConnect UNITS Technical Committee

=== Background

Units and their representations form the basis of measurements. The accurate
interpretation and interoperability of units are of critical importance in the
operation of today's world, from timekeeping, trade, manufacturing to the
success of critical missions.

https://www.bipm.org[BIPM], the international treaty organization created by the
Metre Convention, defines the International System of Units (commonly called the
"SI System") composed of 7 basic units that are used internationally as standard
units. There are, however, pre-SI units, as well as other SI-derived units, in
used today internationally. The digital usage of these units for various
quantities, and the interaction between units and quantities require a refined
treatment for usage by information systems.

=== Charter

TC UNITS is a standing committee chartered to provide international
standards for:

* representation and encoding of units, quantities, and dimensions;
* mechanisms for encoding and interpretation of formulas that utilize units.

The TC aims to work closely with the BIPM, CIPM and CGPM towards an
interoperable "`Digital SI`" infrastructure, and advocate such throughout
technologies and standards developed at CalConnect.


=== Deliverables

. Standardization of a data model for units representation, covering
units, quantities and dimensions.

. Standardization of serialization languages of the units data model, including
UnitsML which is an XML serialization of the units model.

. Standardization of representation schemes used to encode information into the
units data model.

. Guidelines and mechanisms for the integration of the units model with other
existing technologies, such as UnitsML with MathML.

. Standardization and operation of the UnitsDB register, which provides
authoritative information about units in use today.

. The UnitsML website at https://www.unitsml.org, as an introductory website
to the UnitsML technology suite.


=== Begin and end dates

Begin: September 2022

End: Standing Committee


=== Milestones and work products

* UnitsML standard for the encoding, representation and interpretation of units

* UnitsDB register used for semantic encoding and transformation of units


=== Chair (co-chairs)

* Karen Olsen, NIST

* Nick Nicholas, Ribose
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# url: /about/technical-committees/tc-streaming
- page: TC-TESTER
url: /about/technical-committees/tc-tester
- page: TC-UNITS
url: /about/technical-committees/tc-units
- page: TC-VCARD
url: /about/technical-committees/tc-vcard
- page: Closed TCs
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52 changes: 52 additions & 0 deletions _posts/2022-09-11-establishing-tc-units-adopting-unitsml.adoc
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---
layout: page
title: Establishing TC UNITS and adopting UnitsML
date: 2022-09-11
type: news
categories: announcements
excerpt: |
CalConnect announces the establishment of its Technical Committee on Units of
Measure (TC UNITS) and the adoption of UnitsML, the authoritative mechanism for
encoding scientific units of measure.
---
:page-liquid:

== Establishing TC UNITS and adopting UnitsML

CalConnect announces the establishment of its
link:{{'/about/technical-committees/tc-units' | relative_url}}[Technical Committee on Units of Measure (TC UNITS)]
and the adoption of https://www.unitsml.org[UnitsML], the authoritative
mechanism for encoding scientific units of measure.

Originally developed at the
https://www.nist.gov[National Institute of Standards and Technology (NIST)] in the late 1990s and later standardized through
https://www.oasis-open.org[OASIS], UnitsML is now finding a new home at
CalConnect.

The initiative aims to publish UnitsML 1.0 under the leadership of committee
co-chairs Karen Olsen and Nick Nicholas.

TC UNITS is chartered to provide international standards for the representation
and encoding of units, quantities, and dimensions, as well as mechanisms for
encoding and interpreting formulas that utilize units. A key objective is to
pursue international standardization through ISO and IEC, while working closely
with the International Bureau of Weights and Measures (BIPM) towards an
interoperable "Digital SI" infrastructure.

The committee's deliverables include:

* Standardization of a comprehensive data model for units representation
* Multiple data serialization formats including XML (UnitsML), JSON, and YAML
* The authoritative UnitsDB register containing information about current units
* Integration guidelines with existing technologies such as MathML
* Development and maintenance of the UnitsML official website at https://www.unitsml.org[www.unitsml.org]

"Units and their representations form the basis of measurements, critical to
everything from timekeeping and trade to manufacturing and mission-critical
operations," said Mike Douglass, Executive Director of CalConnect. "Our
collaboration with ISO, IEC, and BIPM will ensure UnitsML becomes a globally
recognized standard for digital unit representation.”

Established in September 2022 as a standing committee, TC UNITS represents a
significant step forward in the standardization of scientific unit
representation while pursuing broader international adoption.

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