Yeah, by sdm I think he is refering to the Strip Display Managment test... It's not that easy to explain just like that. It is a multi-aware and multi-task test. Difficult and arduous to explain just like that. IYou've gotta kinda organize the strips in the different columns according to various factors like airplane carrier, time, etc... However, perhaps you should work a bit more on your english if you don't understand the instructions. Sorry i can't help