Search results
Results from the WOW.Com Content Network
Structuring diagrams show a view of a system that shows the structure of the objects, including their classifiers, relationships, attributes and operations: Class diagram; Component diagram; Composite structure diagram; Deployment diagram; Object diagram; Package diagram; Profile diagram
Implementations may also be provided for non real-time operating systems, allowing the abstracted software to be developed and tested in a developer friendly desktop environment. In addition to the OS APIs, the OS abstraction layer project may also provide a hardware abstraction layer , designed to provide a portable interface to hardware ...
Example of a structure diagram. An actor can contain other actors (as a composition). In ROOM these are called actor references or actor refs for short. This allows to create structural hierarchies of arbitrary depth. The actor's ports can be part of its interface (visible from the exterior) or part of its structure (used by itself) or both.
Since structure diagrams represent the structure, they are used extensively in documenting the software architecture of software systems. For example, the component diagram describes how a software system is split up into components and shows the dependencies among these components.
In software engineering, a class diagram [1] in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, operations (or methods), and the relationships among objects. The class diagram is the main building block of object-oriented modeling.
A compile-time binding between an abstraction and its implementation should be avoided so that an implementation can be selected at run-time. When using subclassing, different subclasses implement an abstract class in different ways. But an implementation is bound to the abstraction at compile-time and cannot be changed at run-time.
Time-constrained federates request permission from the RTI to advance their time. The RTI grants a time advance to a time-constrained federates when it is sure that the federate cannot receive a message with a time stamp in its past. Example of Lookahead, granted and advancing: A federate uses a fixed time step of 10 and has a Lookahead of 10.
A diagram from 1978 proposing the expansion of the idea of the API to become a general programming interface, beyond application programs alone [9] The term API initially described an interface only for end-user-facing programs, known as application programs. This origin is still reflected in the name "application programming interface."