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Implementations of the concept can be found in various frameworks for many programming environments. For example, if there is a table parts in a database with columns name (string type) and price (number type), and the Active Record pattern is implemented in the class Part, the pseudo-code
Blackboard Jungle is a 1955 American social drama film about an English teacher in an interracial inner-city school, based on the 1954 novel The Blackboard Jungle by Evan Hunter and adapted for the screen and directed by Richard Brooks.
Source: [3] A grammar for a simple language should be defined; so that sentences in the language can be interpreted. When a problem occurs very often, it could be considered to represent it as a sentence in a simple language (Domain Specific Languages) so that an interpreter can solve the problem by interpreting the sentence.
Blackboard bold used on a blackboard . Blackboard bold is a style of writing bold symbols on a blackboard by doubling certain strokes, commonly used in mathematical lectures, and the derived style of typeface used in printed mathematical texts.
An architectural pattern is a general, reusable resolution to a commonly occurring problem in software architecture within a given context. [1] The architectural patterns address various issues in software engineering, such as computer hardware performance limitations, high availability and minimization of a business risk.
In the above UML class diagram, the client class that requires a target interface cannot reuse the adaptee class directly because its interface doesn't conform to the target interface. Instead, the client works through an adapter class that implements the target interface in terms of adaptee :
A sample UML class and object diagram for the Composite design pattern. [5] In the above UML class diagram, the Client class doesn't refer to the Leaf and Composite classes directly (separately). Instead, the Client refers to the common Component interface and can treat Leaf and Composite uniformly.
A blackboard-system application consists of three major components The software specialist modules, which are called knowledge sources (KSs).Like the human experts at a blackboard, each knowledge source provides specific expertise needed by the application.