Dale Shermon has been estimating since 1984 and parametric cost estimating since 1987. He has presented courses in hardware estimating, software estimating, life cycle cost, Cost Estimating Relationships, Information Technology, risk analysis and supplier assessment in the UK, Italy, USA, Sweden, Australia, Taiwan and Germany. He has also conducted consulting assignments in cost estimating in UK, Italy, France, Australia and the Netherlands. Dale was the first European to become an International Society of Parametric Analysts (ISPA) Certified Parametric Practitioner (CPP) in 2003 and be awarded the Frank Freiman award in 2009. He has presented and published widely on cost engineering and parametrics and is a QinetiQ Fellow. Dale is also author of Systems Cost Engineering, Gower Publishing 2009. Mark Gilmour has a PhD in Cost Engineering from Queens University, Belfast and is a Certified Cost Estimator and Analyst with Parametric specialism (CCEA/P) from the International Cost Estimating and Analysis Association (ICEAA). In 2013 Mark was awarded a QinetiQ Engineering, Scientific and Technical Recognition Award for his contribution to the development of the Cost Engineering Health Check. Whilst at QinetiQ Mark managed the Cost Estimating and Analysis Team and led through life cost and risk management and analysis activities in support of UK aerospace and defence programmes. He is an active member of the Society for Cost Analysis and Forecasting and ICEAA, and has been a regular contributor to professional cost analysis journals and conferences. He is currently a bid manager with Thales Advanced Weapons Systems based in Belfast.