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diff --git a/usth/ICT2.7/P3L2 A Tale of Analysis and Design Subtitles/5 - Identifying Operations - lang_en.srt b/usth/ICT2.7/P3L2 A Tale of Analysis and Design Subtitles/5 - Identifying Operations - lang_en.srt deleted file mode 100644 index 74ca388..0000000 --- a/usth/ICT2.7/P3L2 A Tale of Analysis and Design Subtitles/5 - Identifying Operations - lang_en.srt +++ /dev/null @@ -1,304 +0,0 @@ -1 -00:00:00,460 --> 00:00:03,276 ->> And before we get started actually, I'd like to mention that there's - -2 -00:00:03,276 --> 00:00:05,124 -just, you know, FYI, there's different kinds - -3 -00:00:05,124 --> 00:00:06,708 -of verbs because what I'm looking for - -4 -00:00:06,708 --> 00:00:10,099 -is really action verbs. So verb, verbs that clearly express an action that - -5 -00:00:10,099 --> 00:00:13,580 -can tell me that, you know, what, for example, an item could do, 'kay? - -6 -00:00:13,580 --> 00:00:13,820 ->> Okay? - -7 -00:00:13,820 --> 00:00:16,620 ->> Not the verbs that represent, for example, relationships, 'kay? - -8 -00:00:16,620 --> 00:00:17,076 ->> Okay. - -9 -00:00:17,076 --> 00:00:19,080 ->> So, and the, there, and the ones - -10 -00:00:19,080 --> 00:00:22,020 -that I've identified und, underlined here actually, I, - -11 -00:00:22,020 --> 00:00:26,158 -I underlined complete sentences so that you kind of we can look at the verbs in - -12 -00:00:26,158 --> 00:00:29,150 -in context. And the first one is this - -13 -00:00:29,150 --> 00:00:30,850 -sentence that says that the library may need - -14 -00:00:30,850 --> 00:00:33,190 -to know or to calculate the items a - -15 -00:00:33,190 --> 00:00:35,790 -patron has checked out, when they are due, and - -16 -00:00:35,790 --> 00:00:38,860 -any outstanding overdue fines. So I, I will - -17 -00:00:38,860 --> 00:00:41,430 -imagine that this is representing a situation in - -18 -00:00:41,430 --> 00:00:44,224 -which you bring up a patron's record and - -19 -00:00:44,224 --> 00:00:46,131 -you start looking up this information. Is that [CROSSTALK] - -20 -00:00:46,131 --> 00:00:50,970 ->> The, the patron often wants to know what they have currently checked out. - -21 -00:00:50,970 --> 00:00:51,044 ->> Oh, - -22 -00:00:51,044 --> 00:00:51,282 -alright. - -23 -00:00:51,282 --> 00:00:53,260 ->> Or when are their due or how much they're owed or. - -24 -00:00:53,260 --> 00:00:55,100 ->> Oh, in fact, and then now that you mentioned it, - -25 -00:00:55,100 --> 00:00:57,500 -I think you sent me. One of the scenarios you sent - -26 -00:00:57,500 --> 00:00:59,400 -me had to do with that, right, with the patron coming - -27 -00:00:59,400 --> 00:01:01,930 -in and asking for this information. So yeah, and it makes - -28 -00:01:01,930 --> 00:01:05,025 -a lot of sense. So what I'm going to do, I'm going to - -29 -00:01:05,025 --> 00:01:10,520 -model this by adding this three operations to the patron method. - -30 -00:01:10,520 --> 00:01:13,410 -The first one, I'm going to call, itemsCheckedOut and, basically, it's an - -31 -00:01:13,410 --> 00:01:16,520 -operation, but you don't need to, you know, understand the implementation - -32 -00:01:16,520 --> 00:01:18,820 -details, but when you call this operation, it will - -33 -00:01:18,820 --> 00:01:21,770 -give you back exactly this information, so the items - -34 -00:01:21,770 --> 00:01:23,864 -that are checked out by that patron. The second - -35 -00:01:23,864 --> 00:01:25,965 -one, I'm going to call it whenDue. That will tell you - -36 -00:01:25,965 --> 00:01:29,080 -basically when a, when an item is due. And - -37 -00:01:29,080 --> 00:01:32,550 -the third one is going to be called the outstandingOverdueFines and, - -38 -00:01:32,550 --> 00:01:34,510 -you know, as the name says, it's going to tell - -39 -00:01:34,510 --> 00:01:36,860 -you what are the outstanding overdue fines for that patron. - -40 -00:01:36,860 --> 00:01:37,300 ->> Okay. - -41 -00:01:37,300 --> 00:01:39,306 ->> And as you might notice I mean, - -42 -00:01:39,306 --> 00:01:41,843 -I, I'm going to separate the, the, the attributes - -43 -00:01:41,843 --> 00:01:44,085 -from the operations by having a separate kind - -44 -00:01:44,085 --> 00:01:46,386 -of subrectangle so, in this way, it's clear - -45 -00:01:46,386 --> 00:01:48,274 -what is attribute and what is, what is - -46 -00:01:48,274 --> 00:01:51,000 -an attribute and what's an, what's an operation. - -47 -00:01:51,000 --> 00:01:51,420 ->> Gotcha. - -48 -00:01:51,420 --> 00:01:57,540 ->> And let me see then. Okay, for the - -49 -00:01:57,540 --> 00:02:00,040 -second one you can see that that patron can check - -50 -00:02:00,040 --> 00:02:02,990 -out books and audio visual materials. So I guess, - -51 -00:02:02,990 --> 00:02:06,880 -similarly you, you build kind of the record for a patron. - -52 -00:02:06,880 --> 00:02:09,150 -The patron will give you an item and you will record - -53 -00:02:09,150 --> 00:02:11,020 -the fact that the patron is kind of checking it out. - -54 -00:02:11,020 --> 00:02:15,730 ->> Right. And is that operation related to this, - -55 -00:02:15,730 --> 00:02:18,150 -the checked out attribute that we did a minute ago? - -56 -00:02:18,150 --> 00:02:21,495 ->> It is actually because what will happen then again, you know, if we jump - -57 -00:02:21,495 --> 00:02:24,975 -ahead a little bit would be that every time you invoke this operation. So I'm - -58 -00:02:24,975 --> 00:02:26,810 -going to represent this as a checkOut operation - -59 -00:02:26,810 --> 00:02:28,896 -for the patron. Every time you invoke this, - -60 -00:02:28,896 --> 00:02:31,920 -you will also have to say something about the item and so we will also - -61 -00:02:31,920 --> 00:02:35,700 -flip kind of that that, that build information in the, in the, in the item. - -62 -00:02:35,700 --> 00:02:36,904 ->> Okay. - -63 -00:02:36,904 --> 00:02:39,680 ->> Mm, 'kay? And, and finally, here, I can see that - -64 -00:02:39,680 --> 00:02:42,660 -a patron can request a book or an audio video item Is - -65 -00:02:42,660 --> 00:02:46,240 -not currently in. So I guess this is referring to items that - -66 -00:02:46,240 --> 00:02:48,980 -are already checked out but for which there is interest. Is that? - -67 -00:02:48,980 --> 00:02:54,770 ->> Right. So, particularly, the popular items the patrons want to get on - -68 -00:02:54,770 --> 00:02:57,140 -the list so that they get notified when it comes back in and. - -69 -00:02:57,140 --> 00:02:57,204 ->> Oh. - -70 -00:02:57,204 --> 00:02:57,730 ->> And check it out. - -71 -00:02:57,730 --> 00:03:00,570 ->> I see. I see. Okay. Then I'm going to do - -72 -00:03:00,570 --> 00:03:04,400 -the same thing here. I'm, I'm going to add this method, - -73 -00:03:04,400 --> 00:03:08,510 -which I'm going to call request and I'm going to put it - -74 -00:03:08,510 --> 00:03:11,340 -here in the list of the methods in the list. - -75 -00:03:11,340 --> 00:03:11,450 ->> Okay. - -76 -00:03:11,450 --> 00:03:12,810 ->> Of operations for the, for the patron, okay? - |