Cloud computing offers various computational resources via convenient on-demand service provision. Currently,\nheterogeneous services and cloud resources are usually utilized and managed through diverse service portals. This\nsignificantly limits the effectiveness and efficiency for tasks implementation. Fundamentally, it is due to the lack\nof adequate specifications for service concepts, operations and interfaces from diverse cloud service models and\ntypes. This paper proposes a service management operation semantic description framework for comprehensive\ncloud service operation specification. Relying on ontological modelling techniques, cloud service operations are\nspecified via entity classification, attribute assertion, relationship assertion and annotation assertion. Further, the\nproposed framework benefits from operation reasoning application. It enables intelligent assistance for multiple\noperation preparation and remote execution tasks. Based on the approach, a cloud service operation ontology\nand a unified service access and manipulation system prototype are implemented. Extensive experiments are\nconducted over different cloud service providers and for distinct service models. Obtained results demonstrate\nthat the approach outperforms existing practices by facilitating reliable and effective service access, manipulation\nand interaction tasks.
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