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Welcome to the Observant System Home Page
Transaction-time Semantics for the Web by Curtis Dyreson and Hui-Ling Lin |
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The goal of this project is to support transaction time in observant systems. An observant system is a system that has read access to data but lacks write access, or may have only very limited write access. Transaction time is the time of (database) transactions that update data.
An HTTP server is the canonical example. When a browser requests a document from a server, the server reads that document from the local storage and sends in back to the browser. Only in very rare instances can a browser direct a server to update a document. An HTTP server is not involved when document authors create, edit, and destroy documents with editing software.
The goal of the TTServer is to extend the Apache Web Server to support transaction-time for HTML documents. TTXPath in contrast, extends XPath with support for transaction-time in XML documents.
Curtis E. Dyreson and Hui-Ling Lin © 2001. All rights reserved.