Title: 	Adaptive Configuration: an Object Structural Pattern for Adaptive 
Applications

Authors: 	Edward J. Posnak, R. Greg Lavender, and Harrick M. Vin
		Department of Computer Sciences, The University of Texas at Austin

Email Addresses: {ejp,lavender,vin}@cs.utexas.edu

Primary Contact: 	R. Greg Lavender
			ISODE Consortium
			3925 W. Braker Lane, Suite 333
			Austin, TX 78759
			Tel: +1 512 305 0280
			Fax: +1 512 305 0285


Paper Abstract:

The Adaptive Configuration pattern described in this paper decouples the 
compositional structure of modules, which perform transformations on a data 
stream, from the algorithms used to implement the modules.  Both may be 
changed dynamically and independently, to allow an implementation to adapt 
its functionality and resource requirements to the run-time environment. This 
pattern distringuishes itself from purely configurable pipeline patterns by 
addressing the tension between modularity and performance.  This pattern is 
derived from experience developing a flexible toolkit that provides adaptive 
but efficient presentation processing support for multimedia applications.