The definition of Standard ML
Maintaining knowledge about temporal intervals
Communications of the ACM
Calendrical Calculations: the millennium edition
Calendrical Calculations: the millennium edition
Types and programming languages
Types and programming languages
Time Granularities in Databases, Data Mining and Temporal Reasoning
Time Granularities in Databases, Data Mining and Temporal Reasoning
Context life cycle management in smart space environments
Proceedings of the 3rd workshop on Agent-oriented software engineering challenges for ubiquitous and pervasive computing
Reactivity on the web: paradigms and applications of the language XChange
Journal of Web Engineering
Calendars and topologies as types
KES'05 Proceedings of the 9th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part IV
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Data referring to cultural calendars such as the widespread Gregorian dates but also dates after the Chinese, Hebrew, or Islamic calendars as well as data referring to professional calendars like fiscal years or teaching terms are omnipresent on the Web. Formalisms such as XML Schema have acknowledged this by offering a rather extensive set of Gregorian dates and times as basic data types. This article introduces into CaTTS, the Calendar and Time Type System. CaTTS goes far beyond predefined date and time types after the Gregorian calendar as supported by XML Schema. CaTTS first gives rise to declaratively specify more or less complex cultural or professional calendars including specificities such as leap seconds, leap years, and time zones. CaTTS further offers a tool for the static type checking (of data typed after calendar(s) defined in CaTTS). CaTTS finally offers a language for declaratively expressing and a solver for efficiently solving temporal constraints (referring to calendar(s) expressed in CaTTS). CaTTS complements data modeling and reasoning methods designed for generic Semantic Web applications such as RDF or OWL with methods specific to the particular application domain of calendars and time.