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UML logo. The unified modeling language (UML) is a general-purpose visual modeling language that is intended to provide a standard way to visualize the design of a system.. UML provides a standard notation for many types of diagrams which can be roughly divided into three main groups: behavior diagrams, interaction diagrams, and structure diagrams.
Blackboard Learn (previously the Blackboard Learning Management System) is a web-based virtual learning environment and learning management system developed by Blackboard Inc. The software features course management, customizable open architecture , and scalable design that allows integration with student information systems and authentication ...
In software engineering, the composite pattern is a partitioning design pattern. The composite pattern describes a group of objects that are treated the same way as a single instance of the same type of object. The intent of a composite is to "compose" objects into tree structures to represent part-whole hierarchies.
The University of Massachusetts Lowell (UMass Lowell and UML) is a public research university in Lowell, Massachusetts, with a satellite campus in Haverhill, Massachusetts.It is the northernmost member of the University of Massachusetts public university system and has been accredited by the New England Commission of Higher Education (NECHE) since 1975.
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A sample UML class and sequence diagram for the Facade design pattern. In this UML class diagram , the Client class doesn't access the subsystem classes directly. Instead, the Client works through a Facade class that implements a simple interface in terms of (by delegating to) the subsystem classes ( Class1 , Class2 , and Class3 ).
Builder pattern. The builder pattern is a design pattern designed to provide a flexible solution to various object creation problems in object-oriented programming. The intent of the builder design pattern is to separate the construction of a complex object from its representation. It is one of the Gang of Four design patterns .
A user interface model is a representation of how the end user (s) interact with a computer program or another device and also how the system responds. The modeling task is then to show all the " directly experienced aspects of a thing or device" [Trætteberg2002]. Modeling user interfaces is a well-established discipline in its own right.