John Watkins has more than thirty years of experience in the field of software development, with some twenty-five years in the field of software testing. During his career, Watkins has been involved at all levels and phases of testing and has provided high-level test process consultancy, training, and mentoring to numerous blue chip companies. He is both a Chartered IT Professional and a Fellow of the British Computer Society, where he is an active member of the Specialist Group in Software Testing (SIGiST), previously serving on committees of the Intellect Testing Group (representing the UK technology industry) and the SmallTalk User Group. He is author of Agile Testing: How to Succeed in an Extreme Testing Environment and currently works for IBM's software group. Simon Mills has more than thirty years of experience in the field of software quality, having transferred into the world of system testing from a business role. Simon has been involved in testing software in both business and technical or scientific environments from major investment and insurance systems to laser control, cryogenic control, and superconducting applications. He is the founder of Ingenuity System Testing Services, the preeminent testing authority in the field of electronically traded insurance in the United Kingdom. Simon is widely published internationally in conference proceedings, papers, and contributions to books and has presented as an invited speaker in the United States, at EuroStar, and at the World Congress for Software Quality.