Adaptive Instantiation of Service Workflows Using a Chemical Approach
نویسندگان
چکیده
Service oriented technologies allow Service Based Applications (SBAs) to be easily built by composing independent services available in a network and provided by many actors under conditions that may change in time. Therefore services need to be dynamically selected and composed when an SBA is required along with parameters representing the service delivery conditions. In this paper we propose to use a chemical computational approach to model the process of selecting the required service functionalities with the required conditions as an evolving and always running middleware mechanism. The chemical evolving behaviour of the middleware allows to take into account environmental changes coming from both the providers and users side.
منابع مشابه
Towards self-management of distributed data-driven workflows with QoS guarantees
Data-driven application workflows that leverage compute capabilities and hosted services near the network edge can support latency-sensitive and critical applications in emerging areas such as Internet of Things (IoT) and smart infrastructure. However, distributed instantiation and execution of these workflows using resources across service providers and data centers can be challenging. We pres...
متن کاملA Service Pattern Model and its Instantiation Using Rule-Based Reasoning
Although reuse is the main goal of SOA, composing existing services to realize different user requirements is still a difficult and time-consuming task. There have been research works on workflow templates and design patterns that facilitates reuse and assist with the process composition task. Nevertheless, existing workflow templates are too specific, whereas design patterns may be too abstrac...
متن کاملA Clustering Approach to Scientific Workflow Scheduling on the Cloud with Deadline and Cost Constraints
One of the main features of High Throughput Computing systems is the availability of high power processing resources. Cloud Computing systems can offer these features through concepts like Pay-Per-Use and Quality of Service (QoS) over the Internet. Many applications in Cloud computing are represented by workflows. Quality of Service is one of the most important challenges in the context of sche...
متن کاملTowards Creating Workflows On-the-Fly and Maintaining Them Using the Semantic Web: The sButler Project at Linköping University
In the sButler project (Semantic Web Butler) at Linköpings universitet, Sweden, we examine the modeling and instantiation of workflows based on Web services (services described in a rule-based language). The aim of the project, which is part of the Swedish Semantic Web initiative [1], is to support on-the fly creation of workflows and their subsequent maintenance. Our sButler agent will manage ...
متن کاملBicriteria Service Scheduling with Dynamic Instantiation for Workflow Execution on Grids
Nowadays the grid is turning into a service-oriented environment. In this context, there exist solutions to the execution of workflows and most of them are web-service based. Additionally, services are considered to exist on a fixed host, limiting the resource alternatives when scheduling the workflow tasks. In this paper we address the problem of dynamic instantiation of grid services to sched...
متن کامل