For many students distance learning may be the only viable option but their choice will depend on a range of criteria, not least of which is the school's international reputation and expertise of the faculty:
Course content: Make sure the course is pitched to match your language skills and current knowledge.
Teaching staff: Their calibre and global experience are critical. Check that for relevant business experience, as well as academic expertise, on a global scale.
Student support: Schools that run courses as evening classes face-to-face, claim that the drop-out rate is much lower than for distance learning. Consider what support the distance-learning programme offers for those who might be struggling to balance the day job with a heavy study commitment. Check the facility for asking questions, reporting problems, and, importantly, the speed of reply. You need to know there will be a member of staff available to suit your study hours irrespective of time zone differences.
Networking: This is critical. One of the major attractions offered by top schools is an international network of like-minded alumni, many of whom should be business leaders prepared to devote time to supporting young and ambitious students. Check how easy it is to use the network and ask if you can try the system before signing up.