This thesis develops a quantitative analytical systems approach to use-wear analysis by the measurement of changes to the edge profile of stone implements. Through quantification of edge deformation on experimental implements, wear parameters are established for processing the fernroot, Blechnum indicum, a staple food in coastal southeast Queensland. Using a method involving both scraping and pounding of fernroot on a wooden anvil, it is demonstrated that wear proceeds at a linear rate. Application of wear rates to bevel-edged artefacts from the Brown's Road site in southeast Queensland, indicated that this assemblage represented a substantial amount of Blechnum indicum processing. Use-wear traces on the artefacts suggested that the primary mode of action involved use of the stone implement with the axis at a low angle. The production of bevel flakes through edge fracturing is interpreted to be a result of use rather than edge maintenance.