From b2d80610db6beda38573890ed169815e495bc663 Mon Sep 17 00:00:00 2001
From: Nguyễn Gia Phong <mcsinyx@disroot.org>
Date: Sun, 24 May 2020 16:34:31 +0700
Subject: [usth/ICT2.7] Engineer software

---
 ...5 - Class Diagram: Operations - lang_en_vs5.srt | 111 +++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 usth/ICT2.7/P2L2 OO Software Engineering and UML Subtitles/15 - Class Diagram: Operations - lang_en_vs5.srt

(limited to 'usth/ICT2.7/P2L2 OO Software Engineering and UML Subtitles/15 - Class Diagram: Operations - lang_en_vs5.srt')

diff --git a/usth/ICT2.7/P2L2 OO Software Engineering and UML Subtitles/15 - Class Diagram: Operations - lang_en_vs5.srt b/usth/ICT2.7/P2L2 OO Software Engineering and UML Subtitles/15 - Class Diagram: Operations - lang_en_vs5.srt
new file mode 100644
index 0000000..8943fca
--- /dev/null
+++ b/usth/ICT2.7/P2L2 OO Software Engineering and UML Subtitles/15 - Class Diagram: Operations - lang_en_vs5.srt	
@@ -0,0 +1,111 @@
+1
+00:00:00,110 --> 00:00:02,920
+At this point we have our classes, our attributes,
+
+2
+00:00:02,920 --> 00:00:05,740
+what we're missing is the operations for the class.
+
+3
+00:00:05,740 --> 00:00:08,340
+Let me remind you that operations represent the behavior
+
+4
+00:00:08,340 --> 00:00:10,370
+of a class, and that they may be found by
+
+5
+00:00:10,370 --> 00:00:14,310
+examining interactions among entities in the description of my
+
+6
+00:00:14,310 --> 00:00:18,480
+system. So once more, let's bring back our description, and
+
+7
+00:00:18,480 --> 00:00:22,090
+let's in this case focus on this specific item.
+
+8
+00:00:22,090 --> 00:00:25,330
+That says that the students may use the system to
+
+9
+00:00:25,330 --> 00:00:29,800
+add courses. So this is clearly indicating an action
+
+10
+00:00:29,800 --> 00:00:32,320
+that the students should be able to perform. But notice
+
+11
+00:00:32,320 --> 00:00:35,100
+that this doesn't mean that this is an operation that
+
+12
+00:00:35,100 --> 00:00:38,370
+should be provided by the student's class. It rather means
+
+13
+00:00:38,370 --> 00:00:41,860
+that there should be, somewhere in the system, the possibility
+
+14
+00:00:41,860 --> 00:00:45,080
+of performing this operation. So let's see what this means
+
+15
+00:00:45,080 --> 00:00:47,920
+for our example. This might mean, for example, if we
+
+16
+00:00:47,920 --> 00:00:50,400
+focus on the RegistrationManager, so that there should be an
+
+17
+00:00:50,400 --> 00:00:53,520
+operation in the RegistrationManager that allows me to add
+
+18
+00:00:53,520 --> 00:00:56,300
+a student to a course. And this, in turn, means
+
+19
+00:00:56,300 --> 00:01:00,270
+that both Course and CourseOffering should provide a way to
+
+20
+00:01:00,270 --> 00:01:04,140
+add a student. And therefore, I add this corresponding operation
+
+21
+00:01:04,140 --> 00:01:07,790
+to the RegistrationManager, to the Course, and to the CourseOffering.
+
+22
+00:01:07,790 --> 00:01:10,020
+So after doing that we will continue and populate in
+
+23
+00:01:10,020 --> 00:01:13,080
+a similar way, the other classes in the system. So
+
+24
+00:01:13,080 --> 00:01:16,040
+let me recap. Now we saw how to identify classes.
+
+25
+00:01:16,040 --> 00:01:18,300
+How to identify members of the classes, and
+
+26
+00:01:18,300 --> 00:01:21,910
+particular attributes, and operations. There is one thing that
+
+27
+00:01:21,910 --> 00:01:24,060
+we're missing, a very important aspect of the
+
+28
+00:01:24,060 --> 00:01:28,140
+class diagram which is the relationships between these classes.
-- 
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