什么是系统工程（字幕）04
728
00:31:39,920 --> 00:31:42,840
那刚才讲到的是方法学
729
00:31:43,490 --> 00:31:47,837
那接下来我们来看，SysML是一个什么东西
730
00:31:47,837 --> 00:31:48,320
SysML
731
00:31:48,860 --> 00:31:51,533
按照刚才那个框架来说
732
00:31:51,533 --> 00:31:53,720
就是说，它可以看作是
733
00:31:54,300 --> 00:31:58,210
系统工程建模语言里面的品牌了
734
00:31:59,460 --> 00:32:01,120
它也是个品牌
735
00:32:03,260 --> 00:32:06,250
是由INCOSE和OMG
736
00:32:07,180 --> 00:32:08,200
推广的
737
00:32:08,970 --> 00:32:11,320
一个建模语言的品牌
738
00:32:12,160 --> 00:32:16,050
它是在UML的基础上扩展出来的
739
00:32:16,410 --> 00:32:16,646
740
00:32:16,646 --> 00:32:19,490
可以看作是UML的一个profile
741
00:32:21,760 --> 00:32:23,087
那既然它是品牌
742
00:32:23,087 --> 00:32:24,794
那就会有其他品牌了
743
00:32:24,794 --> 00:32:25,173
对吧
744
00:32:25,173 --> 00:32:26,500
刚才我们也讲了
745
00:32:26,500 --> 00:32:26,880
你看
746
00:32:28,080 --> 00:32:30,160
像Arcadia
747
00:32:33,110 --> 00:32:34,980
用的DSML
748
00:32:35,830 --> 00:32:36,129
749
00:32:36,129 --> 00:32:39,120
领域特定建模语言
750
00:32:39,410 --> 00:32:41,644
这个听起来更加高尚一点
751
00:32:41,644 --> 00:32:42,660
高大上一点
752
00:32:43,260 --> 00:32:48,001
还有呢，像这个OPL、OPD
753
00:32:48,001 --> 00:32:48,750
OPM这个方法学
754
00:32:50,880 --> 00:32:52,710
它自己搞了一个
755
00:32:53,750 --> 00:32:55,048
也是SysML
756
00:32:55,048 --> 00:32:57,860
但是呢，它觉得SysML还不够
757
00:32:57,860 --> 00:33:02,404
又加了其他一些乱七八糟的东西
758
00:33:02,404 --> 00:33:03,270
这个就是
759
00:33:03,990 --> 00:33:06,270
OPD、OPL
760
00:33:09,650 --> 00:33:11,230
也可以有其他
761
00:33:12,160 --> 00:33:12,910
SysML
762
00:33:12,910 --> 00:33:13,910
是个品牌
763
00:33:15,050 --> 00:33:18,064
当然，我们这个课程是讲SysML
764
00:33:18,064 --> 00:33:18,760
所以呢
765
00:33:19,410 --> 00:33:24,300
我们后面的表示法都会尽量以SysML来表示
766
00:33:25,210 --> 00:33:26,790
但是呢，方法学
767
00:33:27,250 --> 00:33:28,230
我们
768
00:33:29,710 --> 00:33:33,794
没有遵照这里面的任何一个方法学
769
00:33:33,794 --> 00:33:34,560
而是呢
770
00:33:35,770 --> 00:33:37,250
我挑选了
771
00:33:37,700 --> 00:33:38,960
一些元素
772
00:33:39,240 --> 00:33:40,150
结合
773
00:33:41,160 --> 00:33:45,490
我之前在软件方法上的经验
774
00:33:45,770 --> 00:33:46,710
然后呢
775
00:33:48,560 --> 00:33:50,450
可以看作是我们自己
776
00:33:51,350 --> 00:33:51,608
777
00:33:51,608 --> 00:33:53,677
提倡的一个方法学
778
00:33:53,677 --> 00:33:55,487
当然没有名字
779
00:33:55,487 --> 00:33:58,850
但是大家可以对比一下，看看
780
00:33:59,240 --> 00:34:00,580
某些地方
781
00:34:00,860 --> 00:34:02,340
是不是更加合理
4
00:00:19,740 --> 00:00:22,570
那首先我们就来
5
00:00:23,450 --> 00:00:25,587
创建一下这个模型了
6
00:00:25,587 --> 00:00:26,442
怎么创建
7
00:00:26,442 --> 00:00:26,870
你看
8
00:00:28,400 --> 00:00:29,320
点这里
9
00:00:32,000 --> 00:00:33,000
然后
10
00:00:33,360 --> 00:00:34,390
这里
11
00:00:36,950 --> 00:00:38,320
新项目这里
12
00:00:41,410 --> 00:00:42,355
然后呢
13
00:00:42,355 --> 00:00:43,300
在这个
14
00:00:45,270 --> 00:00:49,140
类型这里，文件名，类型这里
15
00:00:49,500 --> 00:00:51,720
有几个扩展名
16
00:00:52,860 --> 00:00:57,256
qea、qeax等等等等
17
00:00:57,256 --> 00:01:00,855
那这几个有什么区别，我们来看一下
18
00:01:00,855 --> 00:01:05,680
qea、qeax是最近的版本
19
00:01:05,680 --> 00:01:07,290
才出来的格式
20
00:01:07,290 --> 00:01:09,130
它是用SQLite
21
00:01:09,910 --> 00:01:11,530
数据库来保存的
22
00:01:13,990 --> 00:01:15,023
一个是共享
23
00:01:15,023 --> 00:01:16,470
一个不共享的
24
00:01:17,980 --> 00:01:20,420
而最早EA是用eap
25
00:01:21,390 --> 00:01:23,920
就是微软的Access
26
00:01:24,750 --> 00:01:25,760
数据库
27
00:01:26,040 --> 00:01:26,326
28
00:01:26,326 --> 00:01:27,470
反正都是
29
00:01:28,890 --> 00:01:31,730
比较小型的嘛，比较小型的数据库
30
00:01:32,760 --> 00:01:35,000
后来呢，多了一个eapx
31
00:01:35,490 --> 00:01:35,715
32
00:01:35,715 --> 00:01:38,200
后来又多了一个feap
33
00:01:39,030 --> 00:01:41,750
那显然这个是目前它
34
00:01:42,360 --> 00:01:43,600
主要
35
00:01:44,810 --> 00:01:46,194
推荐的格式
36
00:01:46,194 --> 00:01:49,192
毕竟这个SQLite是开源的嘛
37
00:01:49,192 --> 00:01:49,654
对吧
38
00:01:49,654 --> 00:01:51,730
Access是微软的
39
00:01:53,400 --> 00:01:54,340
当然
40
00:01:54,660 --> 00:01:57,060
这几个格式
41
00:01:58,270 --> 00:02:00,000
都可以转换的
42
00:02:01,040 --> 00:02:02,800
你可以用这个功能
43
00:02:04,600 --> 00:02:09,220
来把，比如说，Eap转到qea，都可以
44
00:02:09,220 --> 00:02:10,480
qea转哪里，都可以的
45
00:02:13,140 --> 00:02:14,200
那我们
46
00:02:15,790 --> 00:02:16,013
47
00:02:16,013 --> 00:02:17,797
就用这个就好了
48
00:02:17,797 --> 00:02:18,690
qea这个