1 00:00:00,200 --> 00:00:02,840 Before doing that, though, now that we discuss the different kinds 2 00:00:02,840 --> 00:00:05,510 of relationships among classes in the class diagram. I would like 3 00:00:05,510 --> 00:00:08,230 to ask you to look at a list of relationships that 4 00:00:08,230 --> 00:00:11,920 I'm providing here and mark the relationships that you think actually 5 00:00:11,920 --> 00:00:15,120 hold for the classes in the system that we are modeling. 6 00:00:15,120 --> 00:00:18,260 So here I have a list of possible relationships for each 7 00:00:18,260 --> 00:00:22,070 relationship. I'm first defining what the relationship is and then what 8 00:00:22,070 --> 00:00:25,270 kind of relationship that is, for example, for the first one I'm 9 00:00:25,270 --> 00:00:27,500 saying that the registration manager uses 10 00:00:27,500 --> 00:00:30,090 the scheduling algorithm, which is a dependency 11 00:00:30,090 --> 00:00:33,860 relationship. And similarly for the other ones. So like for you to go back 12 00:00:33,860 --> 00:00:37,070 to the example, look at the classes that we defined, think about the 13 00:00:37,070 --> 00:00:40,360 requirements, and identify which ones of this 14 00:00:40,360 --> 00:00:42,610 relationships you think hold in the system.