John K HollmannJohn Hollmann is the owner of Validation Estimating, LLC, and a partner in the ValidRisk(R) software venture with Koff & Guerrero Consultants S.A. He collaborates with senior managers and project leaders to enhance practices in cost estimating, project controls, and cost/schedule risk quantification.Mr. Hollmann frequently conducts risk analyses to support investment decisions and helps organizations implement empirically-valid QRA methods. He is a prolific speaker and author and was the lead author and editor of AACE International's foundational Total Cost Management Framework. An Honorary Life Member of AACE International, Mr. Hollmann holds certifications as a Certified Cost Professional (CCP), Cost Estimating Professional (CEP), and Decision and Risk Management Professional (DRMP). He played a key role in developing the DRMP certification.Before founding Validation Estimating in 2005, Mr. Hollmann led cost engineering research and metrics initiatives at benchmarking firm Independent Project Analysis, Inc. Prior to that, his career included two decades of estimating, project control, and engineering roles in various industries with both owner and contractor organizations. Read More Read Less