CBSE notes

NOTES ON COMPONENT-BASE SOFTWARE ENGINEERING

SOFTWARE COMPONENT is

A CONTAINER with:

  • Hidden inner
  • Public outer interface
  • Stating all dependencies explicitly

Component-Based System

follows divide-and-conquer feature:

  • a major relationship between the components should be tree-shaped or reducible (hierarchically organized)
  • entire system can be reduced to one abstract node

2 Types of component models

  • BLACKBOX: modular decomposition
  • GRAYBOX : Separation of concerns

The component system:

the technique to produce a component-based system

  • Component Model (description of components)
  • Composition Technique (composition of components)
  • Composition Language
System Language Bsp.
Software Composition Systems Composition Language Invasive Composistion. Piccola Bloo
Aspect Systems Aspect Separation Crosscutting Aspect/JAOM
View Systems Composition Operators Composition Filters. Hyperspaces
Architecture Systems Architecture as Aspect Connectors EAST-ADL. Web Services
Classical Component Systems Standard Components Reflection .NET CORBA EJB ROS Android
Object-Oriented Systems object as Run-Time Components C++ JAVA UML components
Modular Systems Modules as Compile-Time Components Shell scripts,Pascal, C

BLACK-BOX COMPOSITION BBC :)

BBC fully hides what’s inside Components + Connectors + Composition Recipe = Component-based System

GRAY-BOX COMPOSITION

Separation of concerns

Apr 13, 2021


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