This paper describes two aspects of architecture of componentized systems. First, properties of the basic building blocks (acquisition and presentation components) are discussed and their critical points are identified. Second, the communication between components in the system is analyzed. Different ways of communication and different communication scenarios are evaluated. The obtained results are useful when designing a new system, enlarging current systems or choosing a system for particular task. The area of 3D graphics and multimedia was the main source for examples in the paper and the whole paper is oriented on applying the described principles in this area. Keywords System, Component, Cooperation, 3D graphics, Multimedia.