Walt Lipke recently retired as the deputy chief of the Software Division at the Oklahoma City Air Logistics Center. He has over 35 years of experience in the development, maintenance, and management of software for automated testing of avionics. Mr. Lipke is the creator of the technique Earned Schedule (Copyright ©2003 Lipke), which extracts schedule information from earned value data. He is a graduate of the USA DoD course for Program Managers and a professional engineer with a master’s degree in physics. He is a member of the physics honor society, Sigma Pi Sigma (SPS) and has achieved distinguished academic honors with the selection to Phi Kappa Phi (FKF).