I will take the " Engineering Management Programm" in OU. More than half of the courses are provided by School of Management, same as MBA. It does not require a GMAT score. If register as part time, it will take about 6 term to finish and get a Master of Engineering 's degree.
Take a look at the "Degree Requirement". There are all courses required and offered. There are three areas "Manufacturing and Operations", "High-Tech Management" and "Information and Telecommunications Management".