James F. Pierson-Perry is a Principal Key Expert in the Assay Development group of Siemens Healthcare Diagnostics. He has worked in research and development of in vitro diagnostics (IVD) products for 39 years, developing and leading local and multinational teams that have commercialized more than 75 assays and instrument systems for global markets. His interests include assessing new clinical markers and technologies, optimization and data analysis techniques, standardization of IVD measurement procedures, and improving the product development process. Mr. Pierson-Perry has been active in CLSI for many years. He served as Chairholder for development of CLSI documents EP25 and EP17, as a member of the document development committees for EP05 and EP21, and as Vice-Chairholder and Chairholder of the Evaluation Protocols Consensus Committee. He received the 2013 CLSI award for Excellence in Consensus Management. Mr. Pierson-Perry is currently a member of the Board of Directors and serves as Chairholder of the new EP25 document development committee. He also has given webinars on new CLSI EP documents and served on the StatisPro Expert Panel. Outside of CLSI, Mr. Pierson-Perry is the Corporate Representative on the IFCC Scientific Division Executive Committee, representing the voice of all corporate members. He is a member of ISO TC 212 Working Group 3 and contributed to the development of ISO 23640 on IVD reagent stability. Mr. Pierson-Perry is a member of the AACC Industry Division, and received the Louis J. Dunka, Jr. memorial service award in 2011.