the current research tries to offer a conceptual model in order to create trust among people for choosing virtual universities. to this end, the conceptual model of research has been designed with nine factors. the relationship among factors tested by using statistical methods such as factor analysis and path analysis. in the end, five components were established from among the affecting factor...

We describe a new, simple conceptual model for tables. The conceptual model treats a table as a map that has a domain which is a product of categories or index sets and a codomain which is a set of entry values. We demonstrate how we can use the model to specify the semantics of some tabular editing operations.

Much work has been done recently on the design of a temporal extension to SQL-92, called TSQL2. Similar work is being done to add temporality to the forthcoming SLQ3 standard. Still, TSQL2 is based on the relational model, which is hardly adequate for conceptual modeling of any but the simplest applications. This paper presents a temporal conceptual model, called TERC+, that can be used for dev...

The independent verification of the right applications of business rules in an information system is a task for auditors. The increasing complexity of information systems, and the high risks associated with violations of business rules, have created the need for on line auditing tools. In this paper we sketch a conceptual design for such a tool. The components of the tool are described briefly....

Lake Okeechobee is a large (1,730 km) freshwater lake located at the center of the interconnected south Florida aquatic ecosystem. The lake is shallow (average depth <3 m), originated about 6,000 years ago during oceanic recession, and under natural conditions probably was a slightly eutrophic and had vast marshes to the west and south. The southern marsh was contiguous with the Florida Evergla...

the aim of this study was to investigate relationship between social capital and organizational excellence. initially, about excellence, history and the concept of social capital and its components are described. then, the organizational approach to social capital was examined and the impact of social capital on organizational performance was evaluated. on the basis of the conceptual model, the...

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Metaphor and analogy are perhaps the most challenging aspects of linguistic creativity for a conceptual representation to facilitate, since by their very nature they seek to stretch the boundaries of domain description and dynamically establish new ways of determining inter-domain similarity. By solving the vexing representational problems posed by these phenomena, we can create a more fluid co...

The following document gives advice how to formulate schema matching definitions from any schema to CIDOC CRM : Model. EDM includes some concepts from ORE and from Dublin Core. See also : The Europeana Data Model (EDM). Automated Co-evolution of Conceptual Models, Physical Databases, and Mappings. ER 2010: 146A survey of approaches to automatic schema matching. EITH–A unifying representation fo...