" scale model — a replica or prototype of an object built as a hobby or for research. a particular version of a series of vehicles produced by an automobile manufacturer is known as a model . Model-View-Controller (MVC) is a software architecture that separates an application's data model, user interface, and control logic into three distinct components so that modifications to one component can be made with minimal impact to the others. MVC is often thought of as a software design pattern. However, MVC encompasses more of the architecture of an application than is typical for a design pattern. Hence the term architectural pattern may be useful (Buschmann, et al 1996), or perhaps an aggregate design pattern. Operation In broad terms, constructing an application using an MVC architecture involves defining three classes of modules. O Gauge Model Railroad Building Model: This is the domain-specific representation of the information on which the application operates. The model is another name for the domain layer. "

" Beware: many applications which claim to comply with this much misunderstood pattern in fact do not achieve the required separation of model and view. JavaServer Faces , Jakarta Struts and Webwork2 are currently the most popular web oriented MVC implementations. Struts works at a page level; JSF works at a component level . The WebObjects development/deployment environment is strongly based on MVC. Fusebox Mach-II Maypole Catalyst Tapestry ZNF Apache Cocoon Ruby on Rails General information Description in the Portland Pattern Repository Core J2EE Patterns - Front Controller Dicussion of JavaServer Pages Model 2 architecture MVC-Frameworks written in PHP () Holub, Allen: “Building user interfaces for object-oriented systems�, Java World, 1999. Gresh, John E. : “The Collection Switch Design Pattern�, Rensselaer Computer Science Seminar, 2004, 2004. N Gauge Model Railroad Layout Specific implementations Applications Programming in Smalltalk-80(TM):How to use Model-View-Controller Fusebox Mach-II Maypole Catalyst Model Glue For Coldfusion References Frank Buschmann, Regine Meunier, Hans Rohnert, Peter Sommerlad, Machael Stal (1996) Pattern-Oriented Software Architecture, John Wiley and Sons. ISBN 0-471-95869-7 . "