Successfully defended the dissertation – Jingwen He – Managing and Leveraging Action Knowledge: The Case of Frontline Operators in the Petrochemical Industry. Committee Members: Eileen Trauth (IST), Heng Xu (IST) and Tim Simpson (Industrial Engg). Jingwen’s dissertation included three essays. The first designed a tool named SPA (Semantic Procedure Analyzer) for extracting and chunking explicit action knowledge codified in operator procedures. The second was aimed at evaluating the tool with domain experts and authentic procedures. The third developed a grounded theory of operator strategies for utilizing action knowledge in support of operator actions. The project was supported by Center for Operator Performance.