Pattern Language for Specification of Communication Protocols .

This paper presents the pattern language for specification of communication protocols. The pattern language contains four levels which are used to specify communication protocol and its messages. These four levels of this pattern language are: high-level protocol specification, protocol structure specification, message specification, and detailed message specification. Several existing patterns, e.g. the Layers, are used together with new ones to specify protocol structure. Patterns for communication protocol messages are most important part of this pattern language, and also most important part of any communication protocol specification.