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View Model (other)
View model may refer to: * Conceptual view model in data modelling for example: ** ANSI-SPARC Architecture * Model–View–Controller, an architectural pattern used in software engineering. * Model–view–adapter, another architectural pattern used in software engineering * View model in enterprise architecture for example: ** 4+1 Architectural View Model See also * Modeling perspective * Point of view (other) * Three schema approach The three-schema approach, or three-schema concept, in software engineering is an approach to building information systems and systems information management that originated in the 1970s. It proposes three different views in systems development, wi ... * View (other) * Viewpoint (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conceptual Schema
A conceptual schema is a high-level description of informational needs underlying the design of a database. It typically includes only the main concepts and the main relationships among them. Typically this is a first-cut model, with insufficient detail to build an actual database. This level describes the structure of the whole database for a group of users. The conceptual model is also known as the data model that can be used to describe the conceptual schema when a database system is implemented. It hides the internal details of physical storage and targets on describing entities, datatypes, relationships and constraints. Overview A conceptual schema or conceptual data model is a map of concepts and their relationships used for databases. This describes the semantics of an organization and represents a series of assertions about its nature. Specifically, it describes the things of significance to an organization (''entity classes''), about which it is inclined to collect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ANSI-SPARC Architecture
The ANSI-SPARC Architecture (American National Standards Institute, Standards Planning And Requirements Committee), is an abstract design standard for a database management system (DBMS), first proposed in 1975.ANSI/X3/SPARC Study Group on Data Base Management Systems: (1975), ''Interim Report. FDT'', ACM SIGMOD bulletin. Volume 7, No. 2 The ANSI-SPARC model however never became all formal standard. No mainstream DBMS systems are fully based on it (they tend not to exhibit full physical independence or to prevent direct user access to the conceptual level), but the idea of logical data independence is widely adopted. Three-level architecture The objective of the three-level architecture is to separate the user's view: *It allows independent customized user views: Each user should be able to access the same data, but have a different customized view of the data. These should be independent: changes to one view should not affect others. *It hides the physical storage details from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model–View–Controller
Model–view–controller (MVC) is a software architectural pattern commonly used for developing user interfaces that divide the related program logic into three interconnected elements. This is done to separate internal representations of information from the ways information is presented to and accepted from the user. Traditionally used for desktop graphical user interfaces (GUIs), this pattern became popular for designing web applications. Popular programming languages have MVC frameworks that facilitate the implementation of the pattern. __TOC__ History One of the seminal insights in the early development of graphical user interfaces, MVC became one of the first approaches to describe and implement software constructs in terms of their responsibilities. Trygve Reenskaug created MVC while working on Smalltalk-79 as a visiting scientist at the Xerox Palo Alto Research Center (PARC) in the late 1970s. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model–view–adapter
Model–view–adapter (MVA) or mediating-controller MVC is a software architectural pattern and multitier architecture. In complex computer applications that present large amounts of data to users, developers often wish to separate data (model) and user interface (view) concerns so that changes to the user interface will not affect data handling and that the data can be reorganized without changing the user interface. MVA and traditional MVC both attempt to solve this same problem, but with two different styles of solution. Traditional MVC arranges model (e.g., data structures and storage), view (e.g., user interface), and controller (e.g., business logic) in a triangle, with model, view, and controller as vertices, so that some information flows between the model and views outside of the controller's direct control. The model–view–adapter solves this rather differently from the model–view–controller by arranging model, adapter or mediating controller and view linearly witho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
View Model
A view model or viewpoints framework in systems engineering, software engineering, and enterprise engineering is a framework which defines a coherent set of ''views'' to be used in the construction of a system architecture, software architecture, or enterprise architecture. A ''view'' is a representation of a whole system from the perspective of a related set of concerns.ISO/IEC/IEEE 42010:2011, Systems and so— Architecture description Since the early 1990s there have been a number of efforts to prescribe approaches for describing and analyzing system architectures. These recent efforts define a set of views (or viewpoints). They are sometimes referred to as architecture frameworks or enterprise architecture frameworks, but are usually called "view models". Usually a ''view'' is a work product that presents specific architecture data for a given system. However, the same term is sometimes used to refer to a view ''definition'', including the particular viewpoint and the corr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4+1 Architectural View Model
4+1 is a view model used for "describing the architecture of software-intensive systems, based on the use of multiple, concurrent views".Kruchten, Philippe (1995, November)Architectural Blueprints — The “4+1” View Model of Software Architecture.IEEE Software 12 (6), pp. 42-50. The views are used to describe the system from the viewpoint of different stakeholders, such as end-users, developers, system engineers, and project managers. The four views of the model are logical, development, process and physical view. In addition, selected use cases or scenarios are used to illustrate the architecture serving as the 'plus one' view. Hence, the model contains 4+1 views: * ''Logical view'': The logical view is concerned with the functionality that the system provides to end-users. UML diagrams are used to represent the logical view, and include class diagrams, and state diagrams.Mikko Kontio (2008, JulyArchitectural manifesto: Designing software architectures, Part 5/ref> * ''Proce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modeling Perspective
A modeling perspective in information systems is a particular way to represent pre-selected aspects of a system. Any perspective has a different focus, conceptualization, dedication and visualization of what the model is representing. The traditional way to distinguish between modeling perspectives is structural, functional and behavioral/processual perspectives. This together with rule, object, communication and actor and role perspectives is one way of classifying modeling approaches.John Krogstie (2003)Conceptual modeling, Types of perspectives Structural modeling perspective This approach concentrates on describing the static structure. The main concept in this modeling perspective is the entity, this could be an object, phenomena, concept, thing etc. The data modeling languages have traditionally handled this perspective, examples of such being: *The ER-language (Entity-Relationship) * Generic Semantic Modeling language (GSM) *Other approaches including: :*The NIAM lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point Of View (other)
Point of view or Points of View may refer to: Concept and technique * Point of view (philosophy), an attitude how one sees or thinks of something * Point of view (literature) or narrative mode, the perspective of the narrative voice; the pronoun used in narration * Point of view (painting), the angle of painter vision * Point of view (pornography), a subset of gonzo pornography in which the performer also holds the camera * Point-of-view shot, a technique in motion photography Organizations * Point of View, Inc., a video game developer * Point of View (computer hardware company), a producer of gaming graphics cards * Point of View Movie Production Co. Ltd., of Hong Kong filmmaker Dennis Law Sau-Yiu Geography * Point of View Park, a parklet in Pittsburgh, Pennsylvania, US * Pointe of View Winery, a winery in North Dakota, US Art * ''Point of View'' (Passmore), an art installation by Matthew Passmore in San Francisco, California, and Haifa, Israel * ''Point of View'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Schema Approach
The three-schema approach, or three-schema concept, in software engineering is an approach to building information systems and systems information management that originated in the 1970s. It proposes three different views in systems development, with conceptual modelling being considered the key to achieving data integration. Overview The three-schema approach provides for three types of schemas with schema techniques based on formal language descriptions: * External schema for user views * Conceptual schema integrates external schemata * Internal schema that defines physical storage structures At the center, the conceptual schema defines the ontology of the concepts as the users think of them and talk about them. The physical schema according to Sowa (2004) "describes the internal formats of the data stored in the database, and the external schema defines the view of the data presented to the application programs." The framework attempted to permit multiple data models to be u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
View (other)
A view is a sight or prospect or the ability to see or be seen from a particular place. View, views or Views may also refer to: Common meanings * View (Buddhism), a charged interpretation of experience which intensely shapes and affects thought, sensation, and action * Graphical projection in a technical drawing or schematic ** Multiview orthographic projection, standardizing 2D images to represent a 3D object * Opinion, a belief about subjective matters * Page view, a visit to a World Wide Web page * Panorama, a wide-angle view * Scenic viewpoint, an elevated location where people can view scenery * World view, the fundamental cognitive orientation of an individual or society encompassing the entirety of the individual or society's knowledge and point-of-view Places * View, Kentucky, an unincorporated community in Crittenden County * View, Texas, an unincorporated community in Taylor County Arts, entertainment, and media Music * ''View'' (album), the 2003 debut album by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
