Patrick is Managing Director of Systems Modelling Limited (sysmod.com). His current focus is spreadsheet data analysis and auditing services as well as training and development. He is chair of the European Spreadsheet Risks Interest Group (EuSpRIG), previously a committee member of SoftTest Ireland, and a Fellow of the Irish Computer Society. He has advised two certification bodies on the content of a syllabus for a new certification in good spreadsheet practices. He is the author of the "Spreadsheet Check and Control" book and the developer of the XLTest spreadsheet auditing Excel addin.