The Demaq system: declarative development of distributed applications

Authors:
Alexander Böhm;Erich Marth;Carl-Christian Kanne
Affiliations:
University of Mannheim, Mannheim, Germany;University of Mannheim, Mannheim, Germany;University of Mannheim, Mannheim, Germany
Venue:
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Year:
2008

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Abstract

The goal of the Demaq project is to investigate a novel way of thinking about distributed applications that are based on the asynchronous exchange of XML messages. Unlike today's solutions that rely on imperative programming languages and multi-tiered application servers, Demaq uses a declarative language for implementing the application logic as a set of rules. A rule compiler transforms the application specifications into execution plans against the message history. The plans are evaluated using our optimized runtime engine. This allows us to leverage existing knowledge about declarative query processing for optimizing distributed applications.