{"id":723,"date":"2024-06-06T13:26:46","date_gmt":"2024-06-06T11:26:46","guid":{"rendered":"https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/?page_id=723"},"modified":"2025-07-25T11:50:29","modified_gmt":"2025-07-25T09:50:29","slug":"datenmodellierung","status":"publish","type":"page","link":"https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/aufgaben\/datenmodellierung\/","title":{"rendered":"Datenmodellierung"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Daten\u00admodel\u00adlierung<\/strong><\/h2>\n\n\n<div  class=\"grids-section grids-is-stretch\" style=\"--_gs-gap-desktop:0px 0px;--_gs-m-desktop:20px 0 40px 0;--_gs-p-desktop:0 0 0 0;--_gs-bg-desktop:transparent none;--_gs-bg-xp-desktop:0px;--_gs-zi-desktop:auto;--_gs-d-desktop:block;--_gs-mw-desktop:calc(100% - 0 - 0);--_gs-gap-tablet:0px 0px;--_gs-m-tablet:20px 0 40px 0;--_gs-p-tablet:0 0 0 0;--_gs-bg-tablet:transparent none;--_gs-bg-xp-tablet:0px;--_gs-zi-tablet:auto;--_gs-d-tablet:block;--_gs-mw-tablet:calc(100% - 0 - 0);--_gs-gap-mobile:0px 0px;--_gs-m-mobile:20px 0 40px 0;--_gs-p-mobile:0 0 0 0;--_gs-bg-mobile:transparent none;--_gs-bg-xp-mobile:0px;--_gs-zi-mobile:auto;--_gs-d-mobile:block;--_gs-mw-mobile:calc(100% - 0 - 0);--_gs-columns:1;--_gs-rows:1\"><div class=\"grids-s-w_i\">\n<div class=\"grids-area\" style=\"--_ga-column:1\/2;--_ga-row:1\/2;--_ga-m-desktop:0 0 0 0;--_ga-p-desktop:0 0 0 0;--_ga-bg-desktop:transparent none;--_ga-zi-desktop:auto;--_ga-d-desktop:flex;--_ga-mw-desktop:calc(100% - 0 - 0);--_ga-m-tablet:0 0 0 0;--_ga-p-tablet:0 0 0 0;--_ga-bg-tablet:transparent none;--_ga-zi-tablet:auto;--_ga-d-tablet:flex;--_ga-mw-tablet:calc(100% - 0 - 0);--_ga-m-mobile:0 0 0 0;--_ga-p-mobile:0 0 0 0;--_ga-bg-mobile:transparent none;--_ga-zi-mobile:auto;--_ga-d-mobile:flex;--_ga-mw-mobile:calc(100% - 0 - 0)\">\n\n<p class=\"has-background\" style=\"background-color:#f0f4f9\">In der Daten\u00admodel\u00adlierung be\u00adnutzt man f\u00fcr die gra\u00adfische Darstellung eines datenbezogenen Sachverhaltes ein <strong>Objekt-Beziehungs\u00admodell,<\/strong> in dem kon\u00adkrete Ob\u00adjekte der Real\u00adwelt (z.B. Per\u00adsonen oder B\u00fccher) zu einem Objekt\u00adtyp mit glei\u00adchen Objekt\u00adeigen\u00adschaften zu\u00adsammen\u00adge\u00adfasst werden \u2013 wie z.B. zum Objekt\u00adtyp \u201eBuch\u201c mit den Eigen\u00adschaften \u201eAutor\u201c, \u201eTitel\u201c und \u201eJahr\u201c. Rein gra\u00adfisch betrachtet steht dabei ein&nbsp;Recht\u00adeck&nbsp;f\u00fcr einen Objekt\u00adtyp, eine&nbsp;Ellipse&nbsp;f\u00fcr eine Objekt\u00adeigen\u00adschaft und eine&nbsp;Raute&nbsp;f\u00fcr eine Objekt\u00adbe\u00adziehung.<\/p>\n\n<\/div>\n<\/div><\/div>\n\n<div  class=\"grids-section grids-is-advanced\" style=\"--_gs-gap-desktop:40px 60px;--_gs-m-desktop:0 0 40px 0;--_gs-p-desktop:0 0 0 0;--_gs-bg-desktop:transparent url(https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/uploads\/sites\/8\/2024\/06\/fb5_symbol_light-300x300.png) no-repeat 50% 50%;--_gs-bg-xp-desktop:0px;--_gs-zi-desktop:auto;--_gs-d-desktop:block;--_gs-mw-desktop:calc(100% - 0 - 0);--_gs-gap-tablet:40px 60px;--_gs-m-tablet:0 0 40px 0;--_gs-p-tablet:0 0 0 0;--_gs-bg-tablet:transparent url(https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/uploads\/sites\/8\/2024\/06\/fb5_symbol_light-300x300.png) no-repeat 50% 50%;--_gs-bg-xp-tablet:0px;--_gs-zi-tablet:auto;--_gs-d-tablet:block;--_gs-mw-tablet:calc(100% - 0 - 0);--_gs-gap-mobile:40px 60px;--_gs-m-mobile:0 0 40px 0;--_gs-p-mobile:0 0 0 0;--_gs-bg-mobile:transparent url(https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/uploads\/sites\/8\/2024\/06\/fb5_symbol_light-300x300.png) no-repeat 50% 50%;--_gs-bg-xp-mobile:0px;--_gs-zi-mobile:auto;--_gs-d-mobile:block;--_gs-mw-mobile:calc(100% - 0 - 0);--_gs-columns:12;--_gs-rows:6\"><div class=\"grids-s-w_i\">\n<div class=\"grids-area\" style=\"--_ga-column:9\/13;--_ga-row:1\/7;--_ga-m-desktop:0 0 0 0;--_ga-p-desktop:0 0 0 0;--_ga-bg-desktop:transparent none;--_ga-zi-desktop:auto;--_ga-d-desktop:flex;--_ga-mw-desktop:calc(100% - 0 - 0);--_ga-m-tablet:0 0 0 0;--_ga-p-tablet:0 0 0 0;--_ga-bg-tablet:transparent none;--_ga-zi-tablet:auto;--_ga-d-tablet:flex;--_ga-mw-tablet:calc(100% - 0 - 0);--_ga-m-mobile:0 0 0 0;--_ga-p-mobile:0 0 0 0;--_ga-bg-mobile:transparent none;--_ga-zi-mobile:auto;--_ga-d-mobile:flex;--_ga-mw-mobile:calc(100% - 0 - 0)\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"361\" height=\"602\" src=\"https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/uploads\/sites\/8\/2024\/06\/er-modell-leer.png\" alt=\"\" class=\"wp-image-769\" srcset=\"https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/uploads\/sites\/8\/2024\/06\/er-modell-leer.png 361w, https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/uploads\/sites\/8\/2024\/06\/er-modell-leer-180x300.png 180w\" sizes=\"auto, (max-width: 361px) 100vw, 361px\" \/><\/figure>\n<\/div>\n<\/div>\n\n<div class=\"grids-area\" style=\"--_ga-column:1\/9;--_ga-row:1\/7;--_ga-m-desktop:0 0 0 0;--_ga-p-desktop:0 0 0 0;--_ga-bg-desktop:transparent none;--_ga-zi-desktop:auto;--_ga-d-desktop:flex;--_ga-mw-desktop:calc(100% - 0 - 0);--_ga-m-tablet:0 0 0 0;--_ga-p-tablet:0 0 0 0;--_ga-bg-tablet:transparent none;--_ga-zi-tablet:auto;--_ga-d-tablet:flex;--_ga-mw-tablet:calc(100% - 0 - 0);--_ga-m-mobile:0 0 0 0;--_ga-p-mobile:0 0 0 0;--_ga-bg-mobile:transparent none;--_ga-zi-mobile:auto;--_ga-d-mobile:flex;--_ga-mw-mobile:calc(100% - 0 - 0)\">\n\n<div><script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam4\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-4\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-36'>\n\t\t\t<div class='question-content'><p><b>Aufgabe:<\/b> Bitte w\u00e4hlen Sie f\u00fcr jede Nummer die richtige Antwort.<\/p><br><div class='question-choices'><table class=\"question-choices watupro-matrix-droppable\" id=\"watuPROMatrixDroppable_36\"><tr><td class=\"watupro-matrix-left-cell\"><b>1)<\/b><\/td>\r\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable36\" id=\"watuPRODroppableCell125\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-0-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell125', 0);return false;\">Musiktitel<!--WTPMD55ff0197323b644feaf218dbb0b084ced--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell125', 1);return false;\">Album<!--WTPMD5c4f8393e0c007b946261398d0314a257--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell125', 2);return false;\">spielt ein<!--WTPMD5e6fdca3fa66bc38296052e8ddedf5849--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell125', 3);return false;\">Interpret<!--WTPMD5ad79692ebd033933fada334aec61010b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell125', 4);return false;\">enth\u00e4lt<!--WTPMD5a4aaebceaa3f8cd3775db1df27e09722--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-36 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell125\" name=\"matrix-left-125\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><b>2)<\/b><\/td>\r\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable36\" id=\"watuPRODroppableCell126\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-1-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell126', 0);return false;\">Musiktitel<!--WTPMD55ff0197323b644feaf218dbb0b084ced--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell126', 1);return false;\">Album<!--WTPMD5c4f8393e0c007b946261398d0314a257--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell126', 2);return false;\">spielt ein<!--WTPMD5e6fdca3fa66bc38296052e8ddedf5849--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell126', 3);return false;\">Interpret<!--WTPMD5ad79692ebd033933fada334aec61010b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell126', 4);return false;\">enth\u00e4lt<!--WTPMD5a4aaebceaa3f8cd3775db1df27e09722--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-36 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell126\" name=\"matrix-left-126\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><b>3)<\/b><\/td>\r\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable36\" id=\"watuPRODroppableCell127\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-2-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell127', 0);return false;\">Musiktitel<!--WTPMD55ff0197323b644feaf218dbb0b084ced--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell127', 1);return false;\">Album<!--WTPMD5c4f8393e0c007b946261398d0314a257--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell127', 2);return false;\">spielt ein<!--WTPMD5e6fdca3fa66bc38296052e8ddedf5849--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell127', 3);return false;\">Interpret<!--WTPMD5ad79692ebd033933fada334aec61010b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell127', 4);return false;\">enth\u00e4lt<!--WTPMD5a4aaebceaa3f8cd3775db1df27e09722--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-36 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell127\" name=\"matrix-left-127\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><b>4)<\/b><\/td>\r\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable36\" id=\"watuPRODroppableCell128\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-3-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell128', 0);return false;\">Musiktitel<!--WTPMD55ff0197323b644feaf218dbb0b084ced--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell128', 1);return false;\">Album<!--WTPMD5c4f8393e0c007b946261398d0314a257--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell128', 2);return false;\">spielt ein<!--WTPMD5e6fdca3fa66bc38296052e8ddedf5849--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell128', 3);return false;\">Interpret<!--WTPMD5ad79692ebd033933fada334aec61010b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell128', 4);return false;\">enth\u00e4lt<!--WTPMD5a4aaebceaa3f8cd3775db1df27e09722--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-36 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell128\" name=\"matrix-left-128\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><b>5)<\/b><\/td>\r\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable36\" id=\"watuPRODroppableCell129\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-4-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell129', 0);return false;\">Musiktitel<!--WTPMD55ff0197323b644feaf218dbb0b084ced--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell129', 1);return false;\">Album<!--WTPMD5c4f8393e0c007b946261398d0314a257--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell129', 2);return false;\">spielt ein<!--WTPMD5e6fdca3fa66bc38296052e8ddedf5849--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell129', 3);return false;\">Interpret<!--WTPMD5ad79692ebd033933fada334aec61010b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell129', 4);return false;\">enth\u00e4lt<!--WTPMD5a4aaebceaa3f8cd3775db1df27e09722--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-36 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell129\" name=\"matrix-left-129\" value=\"\"><\/td><\/tr><\/table><\/div><input type='hidden' name='question_id[]' id='qID_1' value='36' class='watupro-question-id'\/><input type='hidden' id='answerType36' class='answerTypeCnt1' value='nmatrix'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-2'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/osa.fh-potsdam.de\/informations-u-datenmanagement\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\" 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