Content Data Model - Definition. Was ist Content Data Model
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Was (wer) ist Content Data Model - definition

A DATA MODEL FOR CERTAIN XML MARKUP LANGUAGES, IN COMPUTING
XPath data model; Xpath data model
  • The XDM type hierarchy

Content Data Model      
(CDM) An SGML-based DoD specification for interactive manuals. (1995-02-15)
Data model (GIS)         
  • Depiction of the Arc/INFO coverage data model, a geo-relational topological vector data model based on the early POLYVRT data model
  • A simple vector data set with points, lines, and polygons representing water features.
  • Raster grid of elevation
WAY OF REPRESENTING GEOGRAPHICAL INFORMATION
Data model (ArcGIS); Geographic data model; GIS data model
A geographic data model, geospatial data model, or simply data model in the context of geographic information systems, is a mathematical and digital structure for representing phenomena over the Earth. Generally, such data models represent various aspects of these phenomena by means of geographic data, including spatial locations, attributes, change over time, and identity.
data model         
  • Some important properties of data<ref name="MW99"/>
  • How data models deliver benefit<ref name="MW99">Matthew West and Julian Fowler (1999). [https://sites.google.com/site/drmatthewwest/publications/princ03.pdf Developing High Quality Data Models]. The European Process Industries STEP Technical Liaison Executive (EPISTLE).</ref>
  • three level architecture]]. This shows that a data model can be an external model (or view), a conceptual model, or a physical model. This is not the only way to look at data models, but it is a useful way, particularly when comparing models.<ref name="MW99"/>
  • The data modeling process
  • Semantic data models<ref name="FIPS184"/>
  • EXPRESS G]] [[Information model]]
  • Example of a Data Structure Diagram
  • date=2013-12-03 }} released of IDEF1X by the Computer Systems Laboratory of the National Institute of Standards and Technology (NIST). 21 December 1993 (withdrawn in 2008).</ref>
  • A [[binary tree]], a simple type of branching linked data structure
  • Data-Flow Diagram example<ref>John Azzolini (2000). [http://ses.gsfc.nasa.gov/ses_data_2000/000712_Azzolini.ppt Introduction to Systems Engineering Practices]. July 2000.</ref>
  • [[Document Object Model]], a standard [[object model]] for representing [[HTML]] or [[XML]]
  • Example of the application of Object-Role Modeling in a "Schema for Geologic Surface", Stephen M. Richard (1999)<ref name="SMR99">Stephen M. Richard (1999). [http://pubs.usgs.gov/of/1999/of99-386/richard.html Geologic Concept Modeling]. U.S. Geological Survey Open-File Report 99-386.</ref>
AN ABSTRACT MODEL THAT ORGANIZES ELEMENTS OF DATA AND STANDARDIZES HOW THEY RELATE TO ONE ANOTHER AND TO REAL WORLD ENTITIES.
Data Model; Structured data; Data model diagram; Data models; Datamodel; History of data modeling; Datamodels
<database> The product of the database design process which aims to identify and organize the required data logically and physically. A data model says what information is to be contained in a database, how the information will be used, and how the items in the database will be related to each other. For example, a data model might specify that a customer is represented by a customer name and credit card number and a product as a product code and price, and that there is a one-to-many relation between a customer and a product. It can be difficult to change a database layout once code has been written and data inserted. A well thought-out data model reduces the need for such changes. Data modelling enhances application maintainability and future systems may re-use parts of existing models, which should lower development costs. A data modelling language is a mathematical formalism with a notation for describing data structures and a set of operations used to manipulate and validate that data. One of the most widely used methods for developing data models is the entity-relationship model. The relational model is the most widely used type of data model. Another example is NIAM. ["Principles of Database and Knowledge-Base Systems", J.D. Ullman, Volume I, Computer Science Press, 1988, p. 32]. (2000-06-24)

Wikipedia

XQuery and XPath Data Model

The XQuery and XPath Data Model (XDM) is the data model shared by the XPath 2.0, XSLT 2.0, XQuery, and XForms programming languages. It is defined in a W3C recommendation. Originally, it was based on the XPath 1.0 data model which in turn is based on the XML Information Set.

The XDM consists of flat sequences of zero or more items which can be typed or untyped, and are either atomic values or XML nodes (of seven kinds: document, element, attribute, text, namespace, processing instruction, and comment). Instances of the XDM can optionally be XML schema-validated.