![]() Global Conceptual Schema: Depicts the global logical view of data.This architecture generally has four levels of schemas. The peers share their resource with other peers and co-ordinate their activities. In these systems, each peer acts both as a client and a server for imparting database services. The two different client - server architecture are However, they have some functions like consistency checking and transaction management. The server functions primarily encompass data management, query processing, optimization and transaction management.Ĭlient functions include mainly user interface. ![]() ![]() This is a two-level architecture where the functionality is divided into servers and clients. Peer - to - Peer Architecture for DDBMSġ.Some of the common architectural models are It refers to the uniformity or dissimilarity of the data models, system components and databases. It indicates the distribution of control of the database system and the degree to which each constituent DBMS can operate independently. It states the physical distribution of data across the different sites. Architecture Models for Distributed Database Management System (or more generally for multiple DBMS) can be classified along three dimensions: Architecture Model of Distributed Database Management System (DDBMS)
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