什么是系统工程（字幕）20
0
00:00:00,000 --> 00:00:00,978
那这个怎么加
1
00:00:00,978 --> 00:00:01,630
我们来看
2
00:00:02,470 --> 00:00:03,558
点这里
3
00:00:03,558 --> 00:00:05,010
然后这里
4
00:00:05,720 --> 00:00:06,877
没有，是吧
5
00:00:06,877 --> 00:00:07,166
6
00:00:07,166 --> 00:00:07,745
没有
7
00:00:07,745 --> 00:00:10,060
那你比如说选这个
8
00:00:10,540 --> 00:00:11,860
SysML
9
00:00:12,150 --> 00:00:12,740
10
00:00:13,160 --> 00:00:14,400
也没有
11
00:00:19,110 --> 00:00:20,420
都没有
12
00:00:20,700 --> 00:00:21,282
都没有
13
00:00:21,282 --> 00:00:22,447
那只好自己加了
14
00:00:22,447 --> 00:00:22,835
对吧
15
00:00:22,835 --> 00:00:23,030
16
00:00:23,030 --> 00:00:25,360
只好自己加一个上去
17
00:00:26,780 --> 00:00:27,026
18
00:00:27,026 --> 00:00:28,260
把这个
19
00:00:28,540 --> 00:00:29,600
这个
20
00:00:30,330 --> 00:00:32,170
这个，手敲上去
21
00:00:34,340 --> 00:00:35,246
22
00:00:35,246 --> 00:00:35,850
adjunct
23
00:00:35,850 --> 00:00:38,944
24
00:00:38,944 --> 00:00:41,890
应用到组合
25
00:00:43,320 --> 00:00:43,950
好
26
00:00:45,170 --> 00:00:45,392
27
00:00:45,392 --> 00:00:46,730
放在上面这里
28
00:00:47,480 --> 00:00:47,697
29
00:00:47,697 --> 00:00:50,090
摆的位置跟这一样
0
00:00:00,000 --> 00:00:02,210
那另外几个也一样
1
00:00:02,210 --> 00:00:04,666
我们照此办理加上去
2
00:00:04,666 --> 00:00:06,140
你看，下来
3
00:00:06,970 --> 00:00:09,110
然后到这个，然后呢
4
00:00:12,940 --> 00:00:14,330
这个叫a2
5
00:00:17,740 --> 00:00:19,580
这个不可导航
6
00:00:25,480 --> 00:00:26,350
7
00:00:26,660 --> 00:00:27,391
就这样
8
00:00:27,391 --> 00:00:29,830
同样，这里面也照此办理
9
00:00:30,520 --> 00:00:30,766
10
00:00:30,766 --> 00:00:32,490
不是这个
11
00:00:32,770 --> 00:00:33,600
这里
12
00:00:34,630 --> 00:00:36,238
这个就可以用上了
13
00:00:36,238 --> 00:00:36,560
对吧
14
00:00:37,570 --> 00:00:38,037
好
15
00:00:38,037 --> 00:00:39,440
这个叫
16
00:00:41,300 --> 00:00:42,470
这叫a3
17
00:00:54,060 --> 00:00:54,410
18
00:00:54,410 --> 00:00:55,460
错了
19
00:00:55,890 --> 00:00:57,000
a3
20
00:01:05,180 --> 00:01:06,000
好
21
00:01:09,400 --> 00:01:10,410
22
00:01:10,690 --> 00:01:11,540
a3
23
00:01:12,790 --> 00:01:14,260
不可以导航
24
00:01:20,280 --> 00:01:21,002
25
00:01:21,002 --> 00:01:23,170
同样，这里也是
26
00:01:24,190 --> 00:01:24,890
27
00:01:25,980 --> 00:01:26,226
好
28
00:01:26,226 --> 00:01:28,194
有了没有
29
00:01:28,194 --> 00:01:30,409
a3、a2、a1
30
00:01:30,409 --> 00:01:31,640
a3放下面这里
31
00:01:32,360 --> 00:01:33,798
这个放左边这里
32
00:01:33,798 --> 00:01:34,210
对吧
33
00:01:35,480 --> 00:01:36,420
34
00:01:38,650 --> 00:01:38,972
好
35
00:01:38,972 --> 00:01:40,910
这个搞定了
36
00:01:41,580 --> 00:01:45,640
下一个就是satisfies这个
37
00:01:45,990 --> 00:01:47,060
就是说
38
00:01:47,340 --> 00:01:49,008
满足这个需求
39
00:01:49,008 --> 00:01:50,120
也就是说，这个
40
00:01:51,270 --> 00:01:56,450
这个活动、功能满足了前面定义的净化
41
00:01:56,950 --> 00:01:59,560
煮沸、冷却这个需求
42
00:01:59,850 --> 00:02:00,979
实际上是废话了
43
00:02:00,979 --> 00:02:01,920
你看这个
44
00:02:02,230 --> 00:02:02,870
45
00:02:03,670 --> 00:02:04,526
一一对应
46
00:02:04,526 --> 00:02:07,096
但是我们不管这么多了
47
00:02:07,096 --> 00:02:09,880
因为我们的建模好多是
48
00:02:10,320 --> 00:02:12,120
现在很多方法学
49
00:02:12,120 --> 00:02:12,520
是什么
50
00:02:13,230 --> 00:02:15,464
它里面没有什么推导
51
00:02:15,464 --> 00:02:18,512
就是一遍一遍刷工作量
52
00:02:18,512 --> 00:02:20,950
所以我们前面开始都说了嘛
53
00:02:21,880 --> 00:02:23,470
推导不足
54
00:02:24,210 --> 00:02:26,148
它说这个东西这样这样这样
55
00:02:26,148 --> 00:02:27,280
我这么这么分解
56
00:02:27,700 --> 00:02:29,731
你怎么知道应该这么分解
57
00:02:29,731 --> 00:02:31,209
里面的推导是什么
58
00:02:31,209 --> 00:02:32,133
没有推导
59
00:02:32,133 --> 00:02:33,056
但没关系
60
00:02:33,056 --> 00:02:34,350
我们就按照这个
61
00:02:34,870 --> 00:02:35,701
照着来
62
00:02:35,701 --> 00:02:37,780
那这个怎么做
63
00:02:39,530 --> 00:02:43,160
那就要在需求图里面来描述了
64
00:02:43,440 --> 00:02:44,300
怎么描述
65
00:02:44,300 --> 00:02:44,730
你看
66
00:02:48,720 --> 00:02:51,450
回到之前这个图
67
00:02:51,780 --> 00:02:53,450
净化在这里嘛
68
00:02:53,830 --> 00:02:56,230
净化、冷却
69
00:02:56,230 --> 00:02:57,030
煮沸
70
00:02:58,000 --> 00:03:00,390
净化这个
71
00:03:00,670 --> 00:03:00,985
72
00:03:00,985 --> 00:03:05,090
煮沸冷这三个在这里
73
00:03:05,820 --> 00:03:09,508
那蒸馏水这个是对应于净化
74
00:03:09,508 --> 00:03:10,360
画过来
75
00:03:10,800 --> 00:03:11,710
76
00:03:13,780 --> 00:03:14,476
然后呢
77
00:03:14,476 --> 00:03:14,940
这个
78
00:03:16,240 --> 00:03:17,046
拖过来
79
00:03:17,046 --> 00:03:20,540
然后这里你看，有个satisfies
80
00:03:21,970 --> 00:03:24,027
那同样，其它照此办理
81
00:03:24,027 --> 00:03:26,770
煮沸水这个对应的什么
82
00:03:28,620 --> 00:03:29,530
煮沸
83
00:03:35,110 --> 00:03:36,280
而这个呢
84
00:03:37,340 --> 00:03:38,890
对应的是冷却
85
00:03:51,580 --> 00:03:52,280
86
00:04:01,370 --> 00:04:01,537
87
00:04:01,537 --> 00:04:02,545
点错了
88
00:04:02,545 --> 00:04:03,720
从这里开始
89
00:04:05,270 --> 00:04:05,720
不是
90
00:04:05,720 --> 00:04:06,397
这个关联
91
00:04:06,397 --> 00:04:07,750
是这个结点
92
00:04:09,530 --> 00:04:10,200
这个
93
00:04:16,530 --> 00:04:17,410
好
94
00:04:18,970 --> 00:04:20,280
这样
95
00:04:22,170 --> 00:04:25,277
那回到我们这个图，没有显示
96
00:04:25,277 --> 00:04:26,473
没有显示
97
00:04:26,473 --> 00:04:27,429
为什么
98
00:04:27,429 --> 00:04:28,863
我们再来看
99
00:04:28,863 --> 00:04:29,580
为什么
100
00:04:29,580 --> 00:04:33,884
因为我们没有让它显示出来
101
00:04:33,884 --> 00:04:35,796
那怎么表达呢
102
00:04:35,796 --> 00:04:37,470
右键点这里
103
00:04:37,780 --> 00:04:38,133
104
00:04:38,133 --> 00:04:38,840
部件
105
00:04:39,120 --> 00:04:40,980
的可见性
106
00:04:41,260 --> 00:04:42,280
选中这个
107
00:04:43,660 --> 00:04:43,842
108
00:04:43,842 --> 00:04:45,300
你看，就出来了，对吧
109
00:04:45,300 --> 00:04:45,847
同样的
110
00:04:45,847 --> 00:04:48,400
我们看，哪两个，这个这个有是吧
111
00:04:51,150 --> 00:04:51,530
112
00:04:51,530 --> 00:04:52,290
不是这个
113
00:04:52,570 --> 00:04:53,710
这个
114
00:04:55,470 --> 00:04:55,753
115
00:04:55,753 --> 00:04:56,320
这个
116
00:05:00,700 --> 00:05:01,500
好
117
00:05:03,260 --> 00:05:03,935
这样
118
00:05:03,935 --> 00:05:05,960
那我们把它排列一下
119
00:05:14,360 --> 00:05:15,302
然后呢
120
00:05:15,302 --> 00:05:15,930
121
00:05:17,610 --> 00:05:17,950
122
00:05:17,950 --> 00:05:19,310
哎呀，这个
123
00:05:20,220 --> 00:05:21,370
搞小一点
124
00:05:21,720 --> 00:05:22,730
往下一点
125
00:05:26,510 --> 00:05:27,440
126
00:05:28,580 --> 00:05:29,060
好
127
00:05:29,060 --> 00:05:30,020
这个
128
00:05:31,260 --> 00:05:32,500
这两个
129
00:06:08,950 --> 00:06:09,810
130
00:06:10,090 --> 00:06:10,302
好
131
00:06:10,302 --> 00:06:11,152
差不多吧
132
00:06:11,152 --> 00:06:11,790
133
00:06:12,070 --> 00:06:15,895
你看这个，满足净化，满足煮沸，满足冷却
134
00:06:15,895 --> 00:06:17,020
我们看看
135
00:06:17,700 --> 00:06:20,665
净化、煮沸、冷却，对吧
136
00:06:20,665 --> 00:06:21,036
137
00:06:21,036 --> 00:06:22,890
这边加热水
138
00:06:23,510 --> 00:06:25,320
a1，对吧
139
00:06:25,600 --> 00:06:26,400
a2
140
00:06:26,780 --> 00:06:27,740
a3
141
00:06:30,170 --> 00:06:31,767
如果你不想，像这个
142
00:06:31,767 --> 00:06:32,765
不显示这个
143
00:06:32,765 --> 00:06:35,760
你可以把这个隐掉
144
00:06:36,220 --> 00:06:38,491
也是在这里把它隐掉
145
00:06:38,491 --> 00:06:39,890
我们这里不隐了
146
00:06:41,290 --> 00:06:42,820
可以在这里把它隐掉
147
00:06:49,280 --> 00:06:50,070
这个
148
00:06:50,370 --> 00:06:51,390
部件这个
149
00:06:51,670 --> 00:06:52,980
把它隐掉，这样
150
00:07:09,010 --> 00:07:09,770
好
151
00:07:10,050 --> 00:07:11,863
这个下来一点
152
00:07:11,863 --> 00:07:12,166
153
00:07:12,166 --> 00:07:12,468
好
154
00:07:12,468 --> 00:07:13,980
这样