Abstract
In this paper, we study variable precisionrough set analysis of multiple decision tables.The precision of a decision ineach table, the ratio of supporting decisiontables to all decision tables and the ratio of opposing decision tables to all decision tablesare controlled in the analysis.As the classical rough set model plays a key role in analysisof decision tables such as reduction, rule induction, etc.,the proposed variable precision rough set models will playa key role in analysis of multiple decision tables.