https://wiki.voror.co.uk/index.php?action=history&feed=atom&title=Logical_Data_Model 2026-10-23T13:07:25Z Revision history for this page on the wiki MediaWiki 1.46.2 https://wiki.voror.co.uk/index.php?title=Logical_Data_Model&diff=5921&oldid=prev 2022-04-19T07:52:47Z

<p>first detail page - for demo purposes. Having problems with images</p> <p><b>New page</b></p><div><br /> <br /> The logical data model describes how data objects relate to each other, but is independent of the technology or database management system used. Logical data models typically show entities (e.g. a patient, an appointment, a result), relationships (e.g. an appointment is linked to a patient via a unique identifier), and attributes (information that is useful to further describe the entities)<br /> <br /> == Simplified Definition ==<br /> A Logical Data Model shows the relationships between different items of data. For example, for a simple online stationery shop, a Logical Data Model might show that a c&#039;&#039;ustomer&#039;&#039; is one data item, and the &#039;&#039;customer&#039;&#039; can be related to a number of &#039;&#039;products&#039;&#039; in the online shop via the &#039;&#039;customer orders&#039;&#039;. This might be represented in the following simple Logical Data Model:<br /> <br /> <br /> Each customer order has one customer, and one or more products. It can be further illustrated:<br /> <br /> == Useful links ==<br /> &lt;nowiki&gt;https://www.gooddata.com/blog/how-build-logical-data-models-scale-analytical-applications/&lt;/nowiki&gt;<br /> <br /> &lt;nowiki&gt;https://en.wikipedia.org/wiki/Data_modeling&lt;/nowiki&gt;<br /> <br /> == Diagrams ==</div>

SimonMeredith