As a main compositive part of the grid user management infrastructure, grid user expression is very important to realize a practical user management system. In this paper, we present a layered user expression model –RUS model and describe each layer’s user set and expression method. Then give the model’s application. Finally we analysis the model’s advantages to the convenience of system admini...

In recent years archaeological investigation has made an important contribution for ascertaining the possible relationship between center of kingdom, namely king and his capital city, regions at core kingdom in different periods Hittite history. The empire was not a monolithic entity but complex web interactions. this frame emerges several roles. study I have chosen to focus on king’s administr...

It is known that WhatsApp the main communication application used today, however, a large number of people who use this technological tool still do not have proper digital education, which generate very serious consequences, since such post untruths and / or uncertain facts end up being disseminated quickly across internet. This article deals with civil liability group administrator in case omi...

Ubiquitous computing can be thought of as consisting of two parts, firstly the devices that a user owns and may or may not carry around and secondly the devices that form a “ubiquitous infrastructure”, the smart environment. While the first part is usually considered to be under the administration of the user, the second part is not under his control. How can a user verify proper administration...