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

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 create mode 100644 usth/ICT2.7/P2L1 Requirements Engineering Subtitles/6 - Identifying Purpose - lang_en_vs4.srt

(limited to 'usth/ICT2.7/P2L1 Requirements Engineering Subtitles/6 - Identifying Purpose - lang_en_vs4.srt')

diff --git a/usth/ICT2.7/P2L1 Requirements Engineering Subtitles/6 - Identifying Purpose - lang_en_vs4.srt b/usth/ICT2.7/P2L1 Requirements Engineering Subtitles/6 - Identifying Purpose - lang_en_vs4.srt
new file mode 100644
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+1
+00:00:00,050 --> 00:00:03,480
+And identifying the purpose of a softer system means
+
+2
+00:00:03,480 --> 00:00:06,980
+defining the requirements for the system. And if you have
+
+3
+00:00:06,980 --> 00:00:09,540
+ever done anything like that, for example, we did
+
+4
+00:00:09,540 --> 00:00:12,060
+it for the first project in the previous mini course,
+
+5
+00:00:12,060 --> 00:00:14,720
+you will know that it is an extremely hard
+
+6
+00:00:14,720 --> 00:00:17,760
+task. Identifying the purpose of the software and defining its
+
+7
+00:00:17,760 --> 00:00:21,600
+requirements is very, very hard. Why is it so hard?
+
+8
+00:00:21,600 --> 00:00:25,560
+First of all, the purpose of most systems is inherently,
+
+9
+00:00:25,560 --> 00:00:27,920
+extremely complex, so this has to do with the
+
+10
+00:00:27,920 --> 00:00:31,330
+sheer complexity of the purpose of the requirements. Just think
+
+11
+00:00:31,330 --> 00:00:34,810
+of how complex is the functionality provided by most systems.
+
+12
+00:00:34,810 --> 00:00:38,790
+Second, it is hard, very hard to extract from humans
+
+13
+00:00:38,790 --> 00:00:41,780
+this purpose and make it explicit. So, paraphrasing a
+
+14
+00:00:41,780 --> 00:00:45,130
+famous quote from the late Steve Jobs, often people don't
+
+15
+00:00:45,130 --> 00:00:47,475
+know what they want until you show it to them.
+
+16
+00:00:47,475 --> 00:00:50,490
+It's hard to figure out what people really want. Third,
+
+17
+00:00:50,490 --> 00:00:54,260
+requirements often change over time. Customers change their
+
+18
+00:00:54,260 --> 00:00:57,490
+mind. Designing and building a system raises new requirements.
+
+19
+00:00:57,490 --> 00:01:00,270
+So for many reasons requirements tend not to
+
+20
+00:01:00,270 --> 00:01:02,760
+be stable, tend to evolve. And that, of course,
+
+21
+00:01:02,760 --> 00:01:05,440
+makes it harder to collect them. Finally, for
+
+22
+00:01:05,440 --> 00:01:09,600
+any realistic system, there are many stakeholders and they
+
+23
+00:01:09,600 --> 00:01:12,990
+often have conflicting goals and requirements. And it
+
+24
+00:01:12,990 --> 00:01:15,900
+can be very hard to reconcile the possibly conflicting
+
+25
+00:01:15,900 --> 00:01:19,630
+requirements that might emerge in these cases. So for all these reasons,
+
+26
+00:01:19,630 --> 00:01:21,230
+it is very, very difficult to
+
+27
+00:01:21,230 --> 00:01:23,930
+perform requirements engineering in an effective way.
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