A collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints.
A conceptual specification of the sets of components and the relationships among the components pertaining to the specific phenomena defined by the model reality. A data model is independent of specific systems or data structures. The S-57 data model defines real world entities as a combination of descriptive and spatial characteristics. These characteristics are defined in terms of feature objects and spatial objects and the relationship between them.
The complete set of data elements which must be taken into account whenever software systems are written. Industry efforts are underway to define a standard data model for retailers.
An entity relationship (ER) diagram that specifies the data source tables and relationships used in your application.
Bi/Query specification of data stored in the Data Warehouse. The data model is supplied by the Data Warehousing Group. Is consists of several screens, each containing icons representing warehouse objects, and lines representing the connections between them. As the warehouse data model changes, it is updated on user's machines by downloading.
A description of the structural properties that define an object and all the relationships that exist among them. Data models influence the way properties of an object are described since they make the structure of these descriptions explicit.
The totality of interrelationships between data tables. Many data tables store records related to different records in other data tables. The methods used to associated data in a related table set are referred to as the data model.
Description of the sizes of data types, such as int, long, and pointer.
The conceptual organization of a database. It can be thought of as the style of structuring, describing, and manipulating the data in a database.
Specifies the data formats and the relationships of fields and tables in an application system. It drives basic database design.
Picture of relationships between data entities and attributes
The data model of a particular data set can be defined as the set of relationships between the variables that make up that data set. The important thing to remember is that it is this relationship that provides meaning to each of the numbers recorded in that data set. For example, without the relationship of the adjacent location measurement, a temperature measurement is just a number with no meaning.
a conceptual representation of data structures(tables) required for a database and is very powerful in expressing and communicating the business requirements
a conceptual representation of the data structures that are required by a database
a description of the relationships between different entities
a formal definition of the data required in a GIS
a formal framework for structuring and manipulating data
a formalized method of structuring and manipulating data
a formal structured representation of real-world entities focused on the definition of an object and its associated attributes
a fully-attributed business rule model, the purpose of which is to design or document a physical database
a graphical representation of the structure and relationships of the items of data (files, fields etc) within a system
a graphic representation and description of entities and the relationships among them, often accompanied by a description of the attributes of the entities
a means of modeling, communicating about, and managing part of reality
an abstract representation of the data used by an organization, such that a meaningful interpretation of the data may be made by the model 's readers
a physical representation of a database
a plan, or map, that defines the units of data and specifies how each unit is related to the others
a representation of data, that is how data are described (e
a structured description of some real-world phenomenon
a system used to represent the relationships between data, sometimes referred to as an entity relationship digram (ERD)
a technology-independent model of an organization's data requirements consisting of diagrams and descriptions of entity types, attribute types, relationship types, and integrity constraints
a visual representation of the physical tables, columns, data types, lengths, null value and referential integrity
A conceptual framework for representing the locations and characteristics of real-world phenomena in a geographic database.
A planning document that describes the framework for a database to be developed. A good data model includes field names, sizes in terms of number of characters, the type of field each is required to be, and how fields and tables interrelate.
Conceptual description of data objects, their attributes, and the relationships between them. There are different types of data models that depend on the data structures to be defined. Example: relational data model.
The implementation or concrete representation of an information model. A data model says what information is to be contained in a datastore, how the information will be used, and how the items in the datastore will be related to each other. RFC3444 states: "Compared to IMs, DMs define managed objects at a lower level of abstraction. They include implementation- and protocol-specific details, e.g. rules that explain how to map managed objects onto lower-level protocol constructs".
1. A generalized, user-defined view of the data related to applications . 2. A formal method for arranging data to mimic the behavior of the real world entities they represent. Fully developed data models describe data types, integrity rules for the data types, and operations on the data types. Some data models are triangulated irregular networks, images, ad georelational or relational models for tabular data.
A description of the structure of the data from the user's perspective.
in data compression, the model, adaptive or static, used to represent the data.
The particular way a GIS software handles data. "1. The result of the conceptual design process. A generalized, user-defined view of the data related to applications." "2. A formal method of describing the behavior of the real-world entities. A fully developed data model specifies entity classes, relationships between entities, integrity rules and operations on the entities." [source: ESRI
A data model is what is formally-defined in a DTD (Document Type Definition) or XML Schema. A document's "data model" consists of the allowable element and attribute names and optional structural and occurrence constraints for a "type" or "class" of documents.
A logical view of entities and their relationships. (Synonym: Entity Relationship Diagram [ERD])
definition, structure, and data types for data
A graphical representation of a data based application (ie: ERwin).
A model that diagrams data used by the business or organization.
The collection of representations and their relationships which apply to a particular logical or physical data representation. [needs work
(2K8I) Representation of the information required to support the operation of any set of business processes and/or the systems used to automate them (2IY5)
Not yet defined.
A logical map that represents the inherent properties of the data independent of software, hardware or machine performance considerations. The model shows data elements grouped into records, as well as the association around those records.
A method of visualizing the informational needs of a system and typically takes the form of an ERD (Entity Relationship Diagram). A graphic representation that identifies the structure, contend and relationships of the information used by an organization's business systems (manual, automated, or both). A data model is the specification of data structures and business rules to represent business requirements. This is an abstraction that describes one or more aspects of a problem or a potential solution addressing a problem. Traditionally, models are thought of as one or more diagrams plus any corresponding documentation. However non-visual artifacts such collections of CRC cards, a textual description of one or more business rules, or the structured English description of a business process are also considered to be models.
The logical data structure developed during the logical database design process is a data model or entity model. It is also a description of the structural properties that define all entries represented in a database and all the relationships that exist among them.
Active Directory data model is derived from the X.500 data model. The directory holds objects that represent various elements described by attributes. The types of objects stored in the directory are defined in the schema. For each object class, the schema defines what attributes an instance of the class must have, what additional attributes it may have, and which object classes can be a parent of the current object class.
A structured way of viewing a set of data â€” the design of the tables and their corresponding relationships in a relational database that are needed to support a vertical industry.
A generalised, user-defined view of data representing the real world.
A conceptual model of the information needed to support a business function or process.
A representation of the specific information requirements of a business area; see also ENTITY RELATIONSHIP MODEL.
The road map to the data in a database. This includes the source of tables and columns, the meanings of the keys, and the relationships between the tables.
data model is a collection of descriptions of data structures and their contained fields, together with the operations or functions that manipulate them.
The theoretical model by which data are structured. Common data models include relational, network, hierarchical and object-oriented. Data modelling is a methodology for structuring data for use in database systems.
A data model is the structure in which a computer program stores persistent information. In a relational database, data models are built from tables.
Defines what data should be fetched from the database, what values should be computed, and how data should be ordered in a report. SQL*ReportWriter objects that define the data model are queries, groups, columns, parameters, and links.
A data model is a model that describes in an abstract way how data is represented in an information system or a database. source: http://www.free-definition.com/Data-model.html
1. The result of the conceptual design process. A generalized, user-defined view of the data related to applications. 2. A formal method of describing the behavior of the real-world entities. A fully developed data model specifies entity classes, relationships between entities, integrity rules and operations on the entities. 3. ArcInfo coverages and grids use a georelational data model, a hybrid data model that combines spatial data (in coverages or grids) and attribute data (in tables). Other data models used in ArcInfo include tins, images, and grid.
Rules and standards that define how a database organizes data. 13.21
A set of guidelines to convert the real world to the digitally represented form consisting geometric data and attributes. There are vector and raster models.
From XML Path Language (XPath) 2.0 ( 2007-01-23) XPath operates on the abstract, logical structure of an XML document, rather than its surface syntax. This logical structure, known as the data model, is defined in .
A data model is an abstract model that describes how data is represented and used.