Presentation
Service Utilization
The service concept is increasingly being used as a model for discussion of composition and use of commercial and government information systems. This paper discusses when the use of the services concept in environments where not all information system nodes are well connected with other nodes in that System, or Federation of Systems. The System framework, or Federation of Systems framework, discussed in this paper is the NATO Network Information Infrastructure (NII) model, based Service Oriented Architecture SOA concepts. This layered model resemble some of the layering concepts used in component architecture models, and similarity to commercial SOA concepts are presented. Use of SOA at various levels within this framework as well as use of SOA in disadvantaged environments are analysed. These discussions lead to conclusions about applying SOA principles at all levels of these models and in environments where connectivity may not be reliable or secure.
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