Now a days in China. May hospital digital libraries are built in the top three hospitals. Due to the limit of budgets, hospital digital libraries always exist in most of hospitals bigger than two level ones, and most of the libraries are small. Meanwhile, there is no library in small hospital at rural or remote areas. And only a very few libraries are digital. Because to construct a digital library needs large amount of fund.It is estimated that to build a medium scale hospital digital library would cost several million even tens of million yuan. Lots of hospital can’t afford the expenses on the computer hardware system to construct the platform of digital library, while some well-financed ones can’t update the hardware to keep pace with the upgrading technology. Even between the digital libraries of top three hospitals, there is lack of mechanism in resource sharing. The digital resources of hospital libraries are independent, so the repetitive construction of them will cost a lot human and finance resources. Part of the resources of the database is also repeated. The libraries in the same area could not fully share their resources, and the repetition rate is so high that a lot of resources and money have been wasted. These problems can not be well resolved by using traditional technology and infrastructure. Cloud computing has brought a new way of thinking to the development of hospital digital libraries. Hospital digital libraries are at the threshold of embracing the concept of cloud computing because of its both technological and economic advantages. Resource sharing, among the hospital digital libraries through Cloud will in principle reduce the overall cost and increase the efficiency. It will also enhance the user experience and will help in making the libraries a lot more scalable Digital Marketing Company Kumbakonam
The proposed system architecture model of the core idea is based on distributed database storage technology, using a cloud computing infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS) three-tier service model. The solution is illustrated in Figure 1,Detailed description is as follows: A.Infrastructure as a Service (IaaS) This is the fundamental base of entire cloud architecture. It mainly provides the underlying technology platform and the core of cloud services. This infrastructure s provided by the hospital digital library using hardware virtualization. This layer supports the entire hospital digitallibrary virtual data center, by which the memory, I/O devices, storage and computing power are centralized into a virtual resource pool to provide services for the entire system. B.Platform as a Service (PaaS) This layer is the underlying services based on Iaa S.It provides digital library application development platform as a service to users, cloud applications for the reader service software developers to provide design, application development, testing and application hosting services, it will reduce the users in the purchase and management of the application life cycle to the cost of hardware and software, and deploy applications and IT infrastructure.The mainly cloud service contains:User management,resource management,task management, security management and fault tolerance.these services can be used when developing the cloud digital library application. C.Software as a Service (SaaS) The facility provided to the user is to use the hospital digital library applications running on a cloud infrastructure.The applications are accessible from various client devices through a thin client interface such as web browser. Libraries would get rid of the passive situation that could only use software of integrated system from manufacturers. By the technology of service discovery and composition.
In order to solve problems that current hospital digital library are independent, repetitive construction, distributed, lack of sharing and rather costly, we proposed a better construction mode of hospital digital library based on cloud computing. the cloud computing can realize the resource sharing and reduce the construction cost. https://arudhrainnovations.com/