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New generation of health care IT systems are collecting and storing more and more data of patients. Useful knowledge can be extracted from the data in EMR or PHR to provide medical advises to patients, while through data analysis the result statistics can be used to support the scientific research. However, RDBMSs-based framework is not able to support the requirements of massive health care data...
With the rapid development of the Internet, SaaS applications delivered as services through internet become an important alternative of traditional software. While using the services, users need real time usage information, and they also need to dig out useful knowledge. As a result, data processing and data mining techniques are designed to cope with such problems, and using log data is an effective...
Software as a Service (SaaS) is a software delivery model for application vendors to serve large amount of users with customized services. To meet the different non-functional requirements of different users, multi-tenant SaaS applications must support different QoS level of different tenants. To ensure QoS level while maintaining high resource utilizing efficiency, this paper proposes a user requirement...
In the SaaS application, users can order corresponding software services from the service provider according to their application needs and adjust their services content in use based on the changes of the enterprise development, with strong elasticity and expansibility. However, despite of so advanced concept of SaaS, there are still some problems in the SaaS field constraining the wider use of SaaS...
SaaS is a new delivery model for the software development and application. Providers tend to make their SaaS products achieve higher level of maturity, serves more people, satisfy more different individual requirements, while maintaining efficiency and flexibility. This paper introduces a new SaaS application model called SaaS with tenancy agency. It adds two new layers: tenancy process layer and...
Service composition which composes available services to new value-added services is an important application constructing pattern. Current execution mechanisms cannot effectively execute complex composition process with many concurrencies. A prioritized message passing based execution mechanism is put forward. First introduces the research background of a new business service based domain oriented...
SaaS (software as a service), the new software application pattern has got wide attraction in both industry and academia. But transaction processing is a problem that prevents SaaS from wide spreading. To solve the problem, this paper proposes A business level compensation mechanism for multitenancy SaaS application transaction processing. The mechanism supports flexible and customizable transaction...
SaaS (Software as a Service), the new software application pattern has got wide attraction in both industry and academia. Multi-tenancy supporting is a big advantage of SaaS. However, current SaaS models and design/execution approaches cannot efficiently support simultaneous invocation by large amount of users of different tenants. To solve the problem, this paper proposes a new SaaS service execution...
SaaS and multi-tenancy has become a trend which gets more and more popularity. On this basis, how to monitor the information of SaaS service process and the instance information of every service of the interaction is an important problem. Based on the model of interaction-oriented SaaS application support for multi-tenancy, this paper proposes a mechanism for tracking the business instance of SaaS...
Exception handling is an important issue in service composition domain, and its mechanism should be considered in the service composition process. When invoking the composite service, exception handling involves with not only process design and status, but also service execution status. This paper proposes a context-sensitive ECA Rule based approach to analyze composite service exception (ANALEPTIC),...
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