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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.0 20120330//EN" "JATS-journalpublishing1.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article"><front><journal-meta><journal-id journal-id-type="publisher-id">INFORMATICA</journal-id><journal-title-group><journal-title>Informatica</journal-title></journal-title-group><issn pub-type="epub">0868-4952</issn><issn pub-type="ppub">0868-4952</issn><publisher><publisher-name>VU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">INF43-409</article-id><article-id pub-id-type="doi">10.3233/INF-1993-43-409</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research article</subject></subj-group></article-categories><title-group><article-title>Conceptual and relational schemes of entities</article-title></title-group><contrib-group><contrib contrib-type="Author"><name><surname>Paradauskas</surname><given-names>Bronius</given-names></name><xref ref-type="aff" rid="j_INFORMATICA_aff_000"/></contrib><aff id="j_INFORMATICA_aff_000">Department of Information Systems, Kaunas University of Technology, 3028 Kaunas, Studentų St. 50–108, Lithuania</aff></contrib-group><pub-date pub-type="epub"><day>01</day><month>01</month><year>1993</year></pub-date><volume>4</volume><issue>3-4</issue><fpage>351</fpage><lpage>359</lpage><abstract><p>The universal structural type of information units-entities is presented the paper. This approach can be recommended for data base modelling at the conceptual and relational levels.</p></abstract><kwd-group><label>Keywords</label><kwd>entities</kwd><kwd>conceptual scheme</kwd><kwd>relational scheme</kwd><kwd>structural type</kwd><kwd>commutational diagram</kwd><kwd>compounded functional dependence</kwd></kwd-group></article-meta></front></article>