An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of...
33 KB (4,182 words) - 17:09, 3 May 2024
enhanced entity–relationship (EER) model (or extended entity–relationship model) in computer science is a high-level or conceptual data model incorporating...
6 KB (638 words) - 22:39, 9 March 2024
The SERM (structured entity relationship model) is an amplification of the ERM which is commonly used for data modeling. It was first proposed from Prof...
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as entities, attributes, relations, or tables. So the "data model" of a banking application may be defined using the entity–relationship "data model"....
40 KB (5,059 words) - 23:27, 29 May 2024
Elementary entity Entity–relationship model Entity-control-boundary Entity realism, a form of scientific realism Entitativity Everything Html entity Non-physical...
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Entity–relationship modeling (ERM) is a conceptual modeling technique used primarily for software system representation. Entity-relationship diagrams...
32 KB (4,072 words) - 04:28, 5 August 2024
need to achieve two very different objectives. They must model the entities, relationships, and logic of the business problems they are solving, and...
39 KB (4,144 words) - 03:03, 16 June 2024
that produces entity–relationship diagrams (ERDs), which can be employed to capture information about data model entity types, relationships and cardinality...
7 KB (629 words) - 12:24, 20 May 2024
(HABTM) relationship. Associative entity One-to-one (data model) One-to-many (data model) Also see entity–relationship model. 3.7.6.5 hasAndBelongsToMany (HABTM)...
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containing relationship Entity–relationship model Relation (disambiguation) This disambiguation page lists articles associated with the title Relationship. If...
2 KB (224 words) - 09:20, 27 July 2024
one-to-many relationship is a type of cardinality that refers to the relationship between two entities (see also entity–relationship model). For example...
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Conceptual schema (redirect from Conceptual data model)
Data modeling – Creating a model of the data in a system Entity-relationship model – Model or diagram describing interrelated thingsPages displaying...
6 KB (833 words) - 16:19, 22 August 2024
physical data models. There are several notations for data modeling. The actual model is frequently called "entity–relationship model", because it depicts...
24 KB (2,809 words) - 07:18, 1 August 2024
An associative entity is a term used in relational and entity–relationship theory. A relational database requires the implementation of a base relation...
4 KB (473 words) - 21:24, 23 July 2024
Has-a (section Entity–relationship model)
instance-of relationship with its type (class). In databases has-a relationships are usually represented in an Entity–relationship model. As you can see...
6 KB (713 words) - 03:40, 13 August 2024
Peter Chen (category Data modeling)
Professor Emeritus at LSU. He is known for the development of the entity–relationship model in 1976. Born in Taichung, Taiwan, Chen received a Bachelor of...
20 KB (2,316 words) - 00:39, 20 August 2024
one-to-one relationship is a type of cardinality that refers to the relationship between two entities (see also entity–relationship model) A and B in...
2 KB (253 words) - 17:16, 31 March 2024
(entity–relationship model) diagrams. Attributes in ER diagrams are usually modeled as an oval with the name of the attribute, linked to the entity or...
14 KB (1,813 words) - 22:32, 18 May 2024
relationships, and the data access is also predictable. Network model Relational model Entity–relationship model Enhanced entity–relationship model Object...
21 KB (2,959 words) - 17:09, 6 August 2024
data modeling, an information model is usually an abstract, formal representation of entity types that may include their properties, relationships and...
12 KB (1,545 words) - 07:41, 15 June 2023
Data structure diagram (category Data modeling diagrams)
model that contains entities, their relationships, and the constraints that are placed on them. It is an older alternative to the entity–relationship...
4 KB (481 words) - 13:56, 18 December 2023
components and relies on existing modelling techniques such as Unified Modeling Language (UML) or entity–relationship diagrams (ERDs) for the more detailed...
6 KB (572 words) - 00:00, 6 January 2024
An entity–attribute–value model (EAV) is a data model optimized for the space-efficient storage of sparse—or ad-hoc—property or data values, intended for...
66 KB (9,728 words) - 21:40, 18 June 2024
facilitates modeling, transforming, and querying information from any domain. ORM is attribute-free: unlike models in the entity–relationship (ER) and Unified...
12 KB (1,406 words) - 17:44, 19 May 2024
The IFLA Library Reference Model (IFLA LRM) is a conceptual entity–relationship model developed by the International Federation of Library Associations...
4 KB (312 words) - 01:48, 17 December 2022
Class diagram (redirect from Structural model (software))
Dependency (UML) Related diagrams Domain model Entity–relationship model Object diagram "Classes". Unified Modeling Language 2.5.1. OMG Document Number formal/2017-12-05...
18 KB (2,099 words) - 09:23, 24 June 2024
Database (section Design and modeling)
model Network model Graph database Relational model Entity–relationship model Enhanced entity–relationship model Object model Document model Entity–attribute–value...
75 KB (9,583 words) - 15:14, 10 August 2024
Functional Requirements for Bibliographic Records (category Reference models)
Requirements for Bibliographic Records (FRBR /ˈfɜːrbər/) is a conceptual entity–relationship model developed by the International Federation of Library Associations...
10 KB (1,102 words) - 03:53, 7 April 2024
REST (section Classification models)
design, such as the Richardson Maturity Model the Classification of HTTP-based APIs the W S3 maturity model Clean URL – URL intended to improve the usability...
17 KB (1,864 words) - 15:35, 23 August 2024
relational databases Enhanced entity–relationship model or extended entity–relationship model, a high-level or conceptual data model for design of databases...
2 KB (324 words) - 13:57, 22 February 2023