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+1

+00:00:00,150 --> 00:00:02,590

+So let's go back again to our domain, with

+

+2

+00:00:02,590 --> 00:00:06,580

+all the sub-domains identified. And the basic idea, or the

+

+3

+00:00:06,580 --> 00:00:09,750

+intuitive idea I was talking about, is that errors tend

+

+4

+00:00:09,750 --> 00:00:12,425

+to occur at the boundary of a domain, or a

+

+5

+00:00:12,425 --> 00:00:15,510

+sub-domain. Like in this case. And why? Because these

+

+6

+00:00:15,510 --> 00:00:19,360

+are the cases that are less understood by the developers.

+

+7

+00:00:19,360 --> 00:00:22,155

+Like for example, the last iteration of a loop, or

+

+8

+00:00:22,155 --> 00:00:25,150

+a special value like zero for integers. So if this

+

+9

+00:00:25,150 --> 00:00:29,590

+is true, what we want to do is to select inputs at these

+

+10

+00:00:29,590 --> 00:00:32,189

+boundaries. And this is complementary to partition

+

+11

+00:00:32,189 --> 00:00:34,270

+testing, in the sense that partition testing

+

+12

+00:00:34,270 --> 00:00:38,160

+will identify the partitions in which we want to select inputs, and boundary

+

+13

+00:00:38,160 --> 00:00:40,570

+testing. So the selection of boundary values

+

+14

+00:00:40,570 --> 00:00:43,060

+will help select inputs in these partitions.