Search results
Results from the WOW.Com Content Network
For instance, a person entity can be linked to a car without one of them being considered as weak entity. In entity relationship diagrams (ER diagrams) , a weak entity set is indicated by a bold (or double-lined) rectangle (the entity) connected by a bold (or double-lined) type arrow to a bold (or double-lined) diamond (the relationship).
This business reference model provides an organized, hierarchical construct for describing the day-to-day business operations of the Federal government using a functionally driven approach. The BRM is the first layer of the Federal Enterprise Architecture and it is the main viewpoint for the analysis of data, service components and technology. [1]
Example of an IDEF1X diagram. Integration DEFinition for information modeling (IDEF1X) is a data modeling language for the development of semantic data models.IDEF1X is used to produce a graphical information model which represents the structure and semantics of information within an environment or system.
The process of identifying, modelling and documenting the data requirements of the system being designed. The result is a data model containing entities (things about which a business needs to record information), attributes (facts about the entities) and relationships (associations between the entities). Data Flow Modelling
Entities and relationships can both have attributes. For example, an employee entity might have a Social Security Number (SSN) attribute, while a proved relationship may have a date attribute. All entities except weak entities must have a minimal set of uniquely identifying attributes that may be used as a unique/primary key.
While business giants risk becoming too clumsy to proact (such as), act and react efficiently, [29] a network organization can contract out any business function that can be done better or more cheaply. In essence, these types of network structures' managers spend most of their time coordinating and controlling external relations, usually by ...
Complete outsourcing or contracting out, with a privately owned corporation delivering the entire service on behalf of the government. This may be considered a mixture of private sector operations with public ownership of assets, although in some forms the private sector's control and/or risk is so great that the service may no longer be ...
Business reference model (BRM) is a reference model, concentrating on the functional and organizational aspects of the core business of an enterprise, service organization or government agency. In enterprise engineering a business reference model is part of an Enterprise Architecture Framework or Architecture Framework .