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

---
 .../18 - Identify Categories - lang_en_vs4.srt     | 127 +++++++++++++++++++++
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 create mode 100644 usth/ICT2.7/P4L2 Black-Box Testing Subtitles/18 - Identify Categories - lang_en_vs4.srt

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diff --git a/usth/ICT2.7/P4L2 Black-Box Testing Subtitles/18 - Identify Categories - lang_en_vs4.srt b/usth/ICT2.7/P4L2 Black-Box Testing Subtitles/18 - Identify Categories - lang_en_vs4.srt
new file mode 100644
index 0000000..a1eb4dd
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+++ b/usth/ICT2.7/P4L2 Black-Box Testing Subtitles/18 - Identify Categories - lang_en_vs4.srt	
@@ -0,0 +1,127 @@
+1
+00:00:00,140 --> 00:00:02,980
+In the second step of the category partition technique, the goal is
+
+2
+00:00:02,980 --> 00:00:05,630
+to Identify Categories. Where categories are
+
+3
+00:00:05,630 --> 00:00:08,650
+characteristics of each input element. So
+
+4
+00:00:08,650 --> 00:00:11,490
+let me illustrate what that means using an example. And to do
+
+5
+00:00:11,490 --> 00:00:14,440
+that I'm going to use again the example of the split program, as
+
+6
+00:00:14,440 --> 00:00:16,830
+we are already familiar with it and we kind of already played
+
+7
+00:00:16,830 --> 00:00:20,110
+with it. When we were talking about the generic black box approach.
+
+8
+00:00:20,110 --> 00:00:22,293
+So let me bring back the program, and let me remind you
+
+9
+00:00:22,293 --> 00:00:25,440
+that what the program does is to take two inputs, a string and
+
+10
+00:00:25,440 --> 00:00:28,560
+the size, and it breaks down the string into chunks,
+
+11
+00:00:28,560 --> 00:00:31,300
+whose length is size. If we look at the split program
+
+12
+00:00:31,300 --> 00:00:34,330
+there are two input elements, str and size so we going to
+
+13
+00:00:34,330 --> 00:00:37,930
+identify categories for these two. So starting from str, what are
+
+14
+00:00:37,930 --> 00:00:41,228
+the interesting characteristics of the string? In, in this step
+
+15
+00:00:41,228 --> 00:00:44,948
+you're going to use your domain knowledge, your understanding of what a
+
+16
+00:00:44,948 --> 00:00:47,986
+string is, and for example we might identify the length of
+
+17
+00:00:47,986 --> 00:00:50,528
+the string and the content of the string as the two
+
+18
+00:00:50,528 --> 00:00:53,840
+main characteristics that we want to focus on. If we now
+
+19
+00:00:53,840 --> 00:00:57,540
+move our focus to size, the only characteristic I can really
+
+20
+00:00:57,540 --> 00:01:00,340
+think of for an integer is its value. So that's what
+
+21
+00:01:00,340 --> 00:01:02,470
+I'm going to mark here. So at the end of the step
+
+22
+00:01:02,470 --> 00:01:05,030
+what we have is that we have two categories. So two
+
+23
+00:01:05,030 --> 00:01:08,930
+interesting characteristics for the string input str, which are the length
+
+24
+00:01:08,930 --> 00:01:12,940
+and the content. And one category for the integer input size
+
+25
+00:01:12,940 --> 00:01:16,480
+which is its value. And notice that there's not only one solution.
+
+26
+00:01:16,480 --> 00:01:18,200
+So there's not only one possibility.
+
+27
+00:01:18,200 --> 00:01:20,384
+So that the specific characteristics that you
+
+28
+00:01:20,384 --> 00:01:22,800
+will identify are somehow subjective. But the
+
+29
+00:01:22,800 --> 00:01:25,630
+important point is that you identify characteristics
+
+30
+00:01:25,630 --> 00:01:29,259
+that are meaningful and they sort of cover the main aspects of the
+
+31
+00:01:29,259 --> 00:01:31,200
+inputs, which is the case for the
+
+32
+00:01:31,200 --> 00:01:33,440
+categories that we've identified in this example.
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