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The notion of a three-schema model was first introduced in 1975 by the ANSI/X3/SPARC three level architecture, which determined three levels to model data. [1]The three-schema approach, or three-schema concept, in software engineering is an approach to building information systems and systems information management that originated in the 1970s.
Susning.nu: a Swedish online wiki started in 2001; anyone-can-edit encyclopedia until 2004; shut down in 2009; Svensk uppslagsbok (2 editions, 31 and 32 volumes, 1929–1955) Svenska uppslagsverk: [15] a comprehensive bibliography maintained by collector Christofer Psilander; Swedish Wikipedia (Svenskspråkiga Wikipedia)
The Albanian Wikipedia (Albanian: Wikipedia Shqip) is the Albanian language edition of Wikipedia started on 12 October 2003. As of 15 January 2025, the Wikipedia has 101,316 articles and is the 73rd-largest Wikipedia.
The states of a created conceptual schema are transformed into an explicit mapping, the database schema. This describes how real-world entities are modeled in the database. "A database schema specifies, based on the database administrator 's knowledge of possible applications, the facts that can enter the database, or those of interest to the ...
In psychology and cognitive science, a schema (pl.: schemata or schemas) describes a pattern of thought or behavior that organizes categories of information and the relationships among them. [ 1 ] [ 2 ] It can also be described as a mental structure of preconceived ideas, a framework representing some aspect of the world, or a system of ...
The language is spoken by approximately 6 million people in the Balkans, primarily in Albania, Kosovo, North Macedonia, Serbia, Montenegro and Greece. [1] However, due to old communities in Italy and the large Albanian diaspora, the worldwide total of speakers is much higher than in Southern Europe and numbers approximately 7.5 million.
English: Figure A2 3 Three schema approach. Date: 18 October 2014: Source: Integration Definition for Information Modeling (IDEFIX) -- 93 Dec 21: Author: Fred the Oyster
In contrast, accommodation is the process of taking new information in one's environment and altering pre-existing schemas in order to fit in the new information. This happens when the existing schema (knowledge) does not work, and needs to be changed to deal with a new object or situation. [4]