LEADER 01208nas 2200409 a 450 001 996218125203316 005 20211129180309.0 011 $a1872-7441 035 $a(OCoLC)38537208 035 $a(CKB)954925481607 035 $a(CONSER) 2005233252 035 $a(DE-599)ZDB1496883-6 035 $a(EXLCZ)99954925481607 100 $a19980303a19799999 sy a 101 0 $aeng 135 $aurmnu||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aCold regions science and technology$b[e-journal] 210 $aNew York, NY $cElsevier Science Pub. Co.$d1979- 300 $aRefereed/Peer-reviewed 311 $a0165-232X 531 $aCOLD REGIONS SCIENCE & TECHNOLOGY 531 $aCOLD REG SCI TECH 531 $aCOLD REG SCI TECHNOL 531 $aCOLD REG SC 531 0 $aCold reg. sci. technol. 531 $aCOLD REG. SCI. TECH 606 $aLow temperature engineering$vPeriodicals 607 $aCold regions$vPeriodicals 608 $aPeriodicals. 615 0$aLow temperature engineering 906 $aJOURNAL 912 $a996218125203316 996 $aCold regions science and technology$91895074 997 $aUNISA LEADER 02612nam 2200385 450 001 996280989503316 005 20231208091141.0 010 $a0-7381-8003-3 024 7 $a10.1109/IEEESTD.2012.6357338 035 $a(CKB)3780000000093213 035 $a(NjHacI)993780000000093213 035 $a(EXLCZ)993780000000093213 100 $a20231208d2012 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aISO/IEC/IEEE 31320-2:2012(E)$hPart 2$iSyntax and Semantics for IDEF1X97 (IDEFobject) $eISO/IEC/IEEE International Standard - Information technology -- Modeling Languages /$fInstitute of Electrical and Electronics Engineers 210 1$aGeneva, New York :$cIEEE,$d2012. 215 $a1 online resource (320 pages) $cillustrations 330 $aIDEF1X97 consists of two conceptual modeling languages. The key-style language supports data/information modeling and is downward compatible with the US government's 1993 standard, FIPS PUB 184. The identity-style language is based on the object model with declarative rules and constraints. IDEF1X97 identity style includes constructs for the distinct but related components of object abstraction: interface, requests, and realization; utilizes graphics to state the interface; and defines a declarative, directly executable Rule and Constraint Language for requests and realizations. IDEF1X97 conceptual modeling supports implementation by relational databases, extended relational databases, object databases, and object programming languages. IDEF1X97 is formally defined in terms of first order logic. A procedure is given whereby any valid IDEF1X97 model can be transformed into an equivalent theory in first order logic. That procedure is then applied to a meta model of IDEF1X97 to define the valid set of IDEF1X97 models. 517 $a31320-2-2012 - ISO/IEC/IEEE International Standard - Information technology -- Modeling Languages -- Part 2 517 $aISO/IEC/IEEE 31320-2:2012(E): ISO/IEC/IEEE International Standard - Information technology -- Modeling Languages -- Part 2: Syntax and Semantics for IDEF1X97 (IDEFobject) 517 $aISO/IEC/IEEE International Standard - Information technology -- Modeling Languages -- Part 2 517 $aISO/IEC/IEEE 31320-2 606 $aModeling languages (Computer science) 615 0$aModeling languages (Computer science) 676 $a005.1 801 0$bNjHacI 801 1$bNjHacl 906 $aDOCUMENT 912 $a996280989503316 996 $aISO$91086301 997 $aUNISA