| Most relay protection setting calculation software today, different customized code has to be developed, deployed and operated to support each user. A separate instance of the code has to be deployed and operated for each user in these systems. This lead to high development and maintenance cost, limited its application in small and medium-sized electric power enterprise. With the emerge of Software as a Service(SaaS), We present a kind architecture of a relay protection setting software under SaaS mode, and described the method used in the system core module under SaaS mode, development and hosting of services, and designed the graphic interface. The new SaaS model reduced the application's hosting cost and user's use fee because of its capabilities in customization and scalability while continuing to support the increasing number of users. It further benefits users by immediate access to the lastest IT technology. |
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