Jacek Kosinski

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This paper presents SLA monitoring and management framework for telecommunication services. The basic requirements of this class of systems are specified and verified in context of existing SLA standards and tools. The proposed system architecture is very general and may interoperate with the existing performance monitoring systems and management tools. The(More)
This paper presents the concept of an Adaptive SOA Solution Stack (AS3). It is an extension of the S3 model, implemented via uniform application of the AS3 element pattern across different layers of the model. The pattern consists of components constituting an adaptation loop. The functionality of each component is specified in a generic way. Aspects of(More)
The paper presents an analysis of the possibilities of defining penalty functions to be used in SLA management frameworks. As a basis for the analysis, a brief survey of metrics used in SLA contracts is presented. Next, several definitions of penalty functions are proposed. The definitions are then analyzed in context of embedding them in a working SLA(More)
Cloud Computing is the evolution of the Grid Computing paradigm towards service-oriented architectures. The terminology applied to this kind of processing, when describing shared resources, refers to the concept of X as a Service. Such resources are available on demand and at a significantly lower cost compared to self-delivery of individual components (in(More)
The paper proposes an architecture of a system automating the provisioning process of cloud computing infrastructures. Its structure and components are specified, based on an analysis of three types of requirements: infrastructure providers, service providers and end users. These considerations have led us to formulate a new infrastructural model, offered(More)
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