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+1

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+As we just heard from Professor Bohem, software

+

+2

+00:00:02,650 --> 00:00:05,970

+engineering is an important and critical discipline, concerned

+

+3

+00:00:05,970 --> 00:00:09,100

+with cost effective software development. We also heard

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+4

+00:00:09,100 --> 00:00:11,170

+that this is based on a systematic approach

+

+5

+00:00:11,170 --> 00:00:14,580

+that uses appropriate tools and techniques, operates under

+

+6

+00:00:14,580 --> 00:00:18,130

+specific development constraints. And most importantly, follows a

+

+7

+00:00:18,130 --> 00:00:20,890

+process. As we discussed in the previous lesson,

+

+8

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+the software development process contains fundamental activities, or phases.

+

+9

+00:00:25,770 --> 00:00:28,480

+Since we will discuss several processes, I'm going to remind

+

+10

+00:00:28,480 --> 00:00:31,150

+you what these phases are. We start with requirements

+

+11

+00:00:31,150 --> 00:00:33,630

+engineering, followed by design,

+

+12

+00:00:33,630 --> 00:00:36,980

+implementation, verification and validation, and

+

+13

+00:00:36,980 --> 00:00:40,950

+finally maintenance. Note that we will revisit each of

+

+14

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+these phases and devote an entire lesson or more

+

+15

+00:00:43,940 --> 00:00:46,160

+to each phase. So what I want to do next

+

+16

+00:00:46,160 --> 00:00:48,210

+is simply to give you a quick overview of

+

+17

+00:00:48,210 --> 00:00:51,020

+what these phases are. Note also that for now

+

+18

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+I will follow a very traditional take on these topics. Later on in the

+

+19

+00:00:54,330 --> 00:00:58,260

+class we will see how things can change and did change over the years.