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AAT ICAS 9045 ✧ element set licensing guidelines

document note: this document is part of the Integrated Chronological Applications System (ICAS). Alliance for the Advancement of Technology (AAT) provides ICAS standards documents subject to terms of use described in document AAT ICAS 9010. please refer to other key AAT ICAS standards documents accessible via the AAT ICAS web site at for important information about ICAS.

this document describes ICAS element set licensing guidelines for ICAS localization, term, format, and character sets. please refer to AAT ICAS 9040 for additional important licensing information.

ICAS element set licensing guidelines

development of ICAS element sets requires an ICAS licensing grade per table 9045.1, unless other arrangements are approved by AAT ICAS.

table 9045.1-ICAS element set licensing by grade

public useX

all ICAS element sets, with the exception of format sets, must be registered with AAT ICAS. there is no additional fee designated for the registration of element sets by ICAS licensees, however certain cases may require the payment of additional fees by a licensee.

licensee development of ICAS element sets must conform to an effective version of ICAS, and licensee element sets, with the exception of format sets, must be approved by AAT ICAS prior to use, unless other arrangements are made.

element set registrations should feature a comprehensive description and lexical analysis of any localized terms. the practicable use of schemes of sequence or order that may be suitable for multicultural use is suggested. element sets may be approved for localized or general use. registrations must also describe any rights or authority for use of localized terms.

registrations should reference ICAS terms of use in describing how localized terms will be used, however additional information may be required. applications for custom daygroup systems must provide sufficient description of how the systems will be used by licensees in conformance with ICAS.

registration approval of certain element sets by AAT ICAS may require the sponsorship of a government, business, religious, or educational organization to ensure suitability of license with regard to ICAS, licensee, language, and localized use.

additional tableset elements may also be represented as member elements of 'supersetICAS'; however must be able to be represented in terms of a discrete relationship to either the 'tablesetUCN' or to the 'tablesetNDN' systems. if a calendar and clock system is coherent to a clock system other than UT, then the clock system element must also be specified in a tableset element.

the development of ICAS element sets are subject to the assignment of unique element set identifiers by AAT ICAS.

top document updated:

system identifiersdatetime
Uniform CalendarUCUCN 12019 S19 Yellow
Inter-Dial ClockIDCzone(UT)t339 tt050
'ICAS in use' can accommodate calendar and clock formatting 'for all people, for all time'.
day of yearD-o-YAD common year day139
Gregorian calendarGG2019 May 19 Sunday
seconds, minutes, hoursSMHUT08:08:14
style legend


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