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diff --git a/usth/ICT2.7/P1L2 Life Cycle Models Subtitles/1 - Introduction with Barry Boehm - lang_en_vs7.srt b/usth/ICT2.7/P1L2 Life Cycle Models Subtitles/1 - Introduction with Barry Boehm - lang_en_vs7.srt deleted file mode 100644 index 954db98..0000000 --- a/usth/ICT2.7/P1L2 Life Cycle Models Subtitles/1 - Introduction with Barry Boehm - lang_en_vs7.srt +++ /dev/null @@ -1,163 +0,0 @@ -1 -00:00:00,430 --> 00:00:06,300 -Hi, in the last lesson we provided an overview of the course and motivated the - -2 -00:00:06,300 --> 00:00:09,570 -need for software engineering. In this lesson, - -3 -00:00:09,570 --> 00:00:13,090 -we will present and start discussing several traditional - -4 -00:00:13,090 --> 00:00:16,090 -software engineering life cycle models. We will - -5 -00:00:16,090 --> 00:00:18,790 -talk about their main advantages, and also about - -6 -00:00:18,790 --> 00:00:21,840 -their shortcomings. We will also talk about - -7 -00:00:21,840 --> 00:00:25,720 -classic mistakes in software engineering that is well - -8 -00:00:25,720 --> 00:00:29,530 -known ineffective development practices, that when - -9 -00:00:29,530 --> 00:00:32,590 -followed, tend to lead to better results. And - -10 -00:00:32,590 --> 00:00:35,120 -covering those, will hopefully help us to avoid - -11 -00:00:35,120 --> 00:00:38,350 -them in the future. And because in this - -12 -00:00:38,350 --> 00:00:41,290 -lesson, I will discuss some fundamental aspects of - -13 -00:00:41,290 --> 00:00:44,730 -software engineering, to suitably introduce these topics, I - -14 -00:00:44,730 --> 00:00:47,110 -went to the University of Southern California, to - -15 -00:00:47,110 --> 00:00:50,300 -interview one of the fathers of software engineering; - -16 -00:00:50,300 --> 00:00:53,070 -Professor Barry Boehm. - -17 -00:00:53,070 --> 00:00:59,060 ->> A well, a software life cycle is a sequence of, of decisions that you - -18 -00:00:59,060 --> 00:01:01,895 -make, and it's fundamentally those decisions are - -19 -00:01:01,895 --> 00:01:05,280 -going to be part of the history of the - -20 -00:01:05,280 --> 00:01:09,500 -software that. You are going to build that other people are going to use, and - -21 -00:01:09,500 --> 00:01:15,330 -the process model is basically answering the question of what do I do next and - -22 -00:01:15,330 --> 00:01:20,550 -how long shall I do it for. And again, because there are a lot of different ways - -23 -00:01:20,550 --> 00:01:24,220 -you can make that decision, you need to - -24 -00:01:24,220 --> 00:01:27,640 -figure out which models are good for which particular - -25 -00:01:27,640 --> 00:01:31,475 -situations. So, for example, we've, written a book - -26 -00:01:31,475 --> 00:01:34,846 -that's called Balancing Agility and Discipline. It says under - -27 -00:01:34,846 --> 00:01:37,835 -what conditions should you use agile methods, under - -28 -00:01:37,835 --> 00:01:40,824 -which conditions should you invest more time in analyzing - -29 -00:01:40,824 --> 00:01:44,826 -the situation and planning what you're going to do and the like. And so, - -30 -00:01:44,826 --> 00:01:49,866 -typically if the project is, is small where it's three to ten - -31 -00:01:49,866 --> 00:01:55,271 -people, agile works pretty well. If it's 300 - -32 -00:01:55,271 --> 00:02:00,545 -people, then I think we don't want to go that way. If the affect of - -33 -00:02:00,545 --> 00:02:05,960 -the defect is loss of comfort or limited funds, then agile is fine, - -34 -00:02:05,960 --> 00:02:11,184 -but if it is a loss of life, then you don't. On the other hand if, if - -35 -00:02:11,184 --> 00:02:13,776 -you have a situation where you have lot - -36 -00:02:13,776 --> 00:02:17,745 -of unpredictable change, you really don't want to spend - -37 -00:02:17,745 --> 00:02:23,439 -a lot of time writing plans and lots of documents. In some cases you may have a - -38 -00:02:23,439 --> 00:02:26,907 -project where you want to do waterfall in - -39 -00:02:26,907 --> 00:02:31,140 -some parts and agile in others. So, these are - -40 -00:02:31,140 --> 00:02:36,180 -the kind of things that, that make the choice of life cycle process - -41 -00:02:36,180 --> 00:02:41,409 -model very important and very interesting as a subject of research. |