Abstract: Object orientation software architecture is not sliver bullet and has some disadvantages. The most significant is that if one objectwants to interact with another it must know the identity of that other object.Moreover, object orientation software architecture has some side affects. The well kown implicit invocation mechanism is introduced to object oriented softwarearchitecture in order to minimize the disadvantages. While in the heterogeneoussoftware architecture the principle of separation palys a major part in minimizing the disadvantages.

Key words: software design, software development, software architecture