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The Research of Multiparty ApplicationModeling Supported Network Architecture
Description Method
HUANG YUAN, SHEN JUN, and SONG JINJING
School of Computer Science & Engineering, Southeast University, Nanjing , China
The multiparty applications pattern of network is going to definitely play an important role on theInternet. However, the traditional research of network architecture almost exclusively uses the ‘‘oneto one’’ direct interaction model to describe various kinds of network interactions. The INSA(Interactive Network Services Architecture) reference model and network description languageINSADL developed by the Laboratory of Computer Network and Information Integration(Southeast University) have introduced the component-based thought and interactive viewpoint tothe research of network architecture. Moreover, INSADL has provided support for the modeling ofnetwork multiparty applications to some extent.
Nevertheless the modeling requirements of the multiparty applications are much morecomplicated than those of traditional network applications. The description of complex networkinteractions involving a non-fixed number of participating entities needs to be supported. It alsoraised the problem of how to represent the composite entity components, and sometimes the dynamicjoining and leaving of entities from interactions should be dealt with. Therefore, INSADL still hassome limitations. So we established a new network architecture formal description method on thebasis of INSADL’s component-based thought to support the depiction of multiparty application.
We discussed the detailed modeling schemas for different modeling elements. For entitycomponents, we defined the inheritance relations between component classes by using the‘‘extends’’ field and set rules for the overriding of grammar units in derived classes. We alsointroduced the ‘‘symbol transformation method’’ of CSP to simplify the definition of similarprocesses. Furthermore, the definition production of functions which describe the data processingof entities is given. For the modeling of the interaction connector, we improved the description usedby INSADL. We adjusted the production of nonterminal <INSA_Role>, and add a new nonterminal<Multiplicity_Expression>. Thus an uncertain number of roles in an interaction connector can beexplicitly denoted. Concerning the connection configuration, we took a similar measure asinteraction connector to alternate the definition of nonterminals related with the instances of entitycomponent classes, using multiplicity expressions within the brackets to specify the number ofinstances.
This paper establishes a foundation for further research of the multiparty application networksystem’s properties using the formal method.
Keywords Network architecture; Network multiparty application; Component-based thought
International Journal of Distributed Sensor Networks, 5: 26, 2009
Copyright � Taylor & Francis Group, LLC
ISSN: 1550-1329 print / 1550-1477 online
DOI: 10.1080/15501320802520589
Supported by 973 Project 2003CB314801 and the Natural Science Foundation of China (GrantNo. 60603067 and No. 90604003).
Address correspondence to Huang Yuan, School of Computer Science & Engineering, SoutheastUniversity, Nanjing, China. E-mail: [email protected]
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