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diff --git a/usth/ICT2.7/P3L3 Design Patterns Subtitles/2 - History of Design Patterns - lang_en_vs6.srt b/usth/ICT2.7/P3L3 Design Patterns Subtitles/2 - History of Design Patterns - lang_en_vs6.srt deleted file mode 100644 index 5fbb886..0000000 --- a/usth/ICT2.7/P3L3 Design Patterns Subtitles/2 - History of Design Patterns - lang_en_vs6.srt +++ /dev/null @@ -1,179 +0,0 @@ -1 -00:00:00,160 --> 00:00:02,780 -Let's start our decision of design patterns by looking - -2 -00:00:02,780 --> 00:00:05,280 -at the history of patterns. As you know, I like - -3 -00:00:05,280 --> 00:00:07,810 -to give this sort of historical perspective on how and - -4 -00:00:07,810 --> 00:00:10,600 -when concepts were defined. In this case, we have to - -5 -00:00:10,600 --> 00:00:14,830 -go back to 1977, when Christopher Alexander, an American professor - -6 -00:00:14,830 --> 00:00:18,300 -of architecture at UC Berkeley, introduces the idea of patterns, - -7 -00:00:18,300 --> 00:00:21,700 -successful solutions to problems, in his book called a Pattern - -8 -00:00:21,700 --> 00:00:25,640 -Language. The book contains about 250 patterns. And the idea - -9 -00:00:25,640 --> 00:00:27,700 -is that occupants of a building should be able - -10 -00:00:27,700 --> 00:00:30,110 -to design it. And the patterns in the book provide - -11 -00:00:30,110 --> 00:00:32,368 -a way to do that. And this idea of design - -12 -00:00:32,368 --> 00:00:35,964 -patterns, so, a formal way of documenting successful solutions to - -13 -00:00:35,964 --> 00:00:41,200 -problems, inspired several other disciplines. In particular, in 1987, - -14 -00:00:41,200 --> 00:00:44,810 -Ward Cunningham and Kent Beck leveraged this idea of Alexander's - -15 -00:00:44,810 --> 00:00:48,360 -patterns in the context of an object oriented language. - -16 -00:00:48,360 --> 00:00:50,840 -And in this specific the language was Smalltalk. - -17 -00:00:50,840 --> 00:00:52,666 -Some of you might know the language. So what Cunningham - -18 -00:00:54,492 --> 00:00:56,320 -and Beck did, was to create a 5 pattern - -19 -00:00:56,320 --> 00:00:59,880 -language for guiding novice Smalltalk programmers. So they did - -20 -00:00:59,880 --> 00:01:03,090 -an experiment and had several developers using their patterns, and - -21 -00:01:03,090 --> 00:01:06,330 -the experiment was extremely successful. The users were able to - -22 -00:01:06,330 --> 00:01:09,940 -create elegant designs using the provided patterns. And in case - -23 -00:01:09,940 --> 00:01:12,210 -you are interested in reading about it, Cunningham and Beck - -24 -00:01:12,210 --> 00:01:15,660 -reported the results in the article, Using Pattern Languages for - -25 -00:01:15,660 --> 00:01:17,940 -Object Oriented Programs, which was published at the - -26 -00:01:17,940 --> 00:01:21,854 -International Conference on Object Oriented Programming, Systems, Languages, and - -27 -00:01:21,854 --> 00:01:25,390 -Applications, also called OOPSLA, in 1987. At the - -28 -00:01:25,390 --> 00:01:28,480 -same time, Eric Gamma was working on his dissertation, - -29 -00:01:28,480 --> 00:01:31,030 -whose topic was the importance of patterns and - -30 -00:01:31,030 --> 00:01:34,430 -how to capture them. Between 1987 and 1992, there - -31 -00:01:34,430 --> 00:01:37,520 -were several workshops related to design patterns. And - -32 -00:01:37,520 --> 00:01:40,740 -in 1992, Jim Coplien compiled a catalog of C++ - -33 -00:01:40,740 --> 00:01:43,140 -items, which are some sort of patterns, and - -34 -00:01:43,140 --> 00:01:45,130 -he listed this catalog of patterns in his - -35 -00:01:45,130 --> 00:01:48,720 -book, which was titled Advanced C++ Programming Styles - -36 -00:01:48,720 --> 00:01:52,952 -and Idioms. Finally, in 1993 and 1994, there were - -37 -00:01:52,952 --> 00:01:56,160 -several additional workshops focused on patterns. And this - -38 -00:01:56,160 --> 00:01:59,625 -workshop brought together many patterns folks, including these - -39 -00:01:59,625 --> 00:02:03,040 -4 guys, Erich Gamma, Richard Helm, Ralph Johnson, - -40 -00:02:03,040 --> 00:02:06,040 -and John Vlissides. These guys are also known as - -41 -00:02:06,040 --> 00:02:08,970 -the gang of 4. And the result of this collaboration was the - -42 -00:02:08,970 --> 00:02:11,840 -famous book Design Patterns: Elements of - -43 -00:02:11,840 --> 00:02:14,320 -Reusable Object Oriented Software. So this - -44 -00:02:14,320 --> 00:02:17,640 -is basically The Book on design patterns. If you want to buy - -45 -00:02:17,640 --> 00:02:19,780 -a book on design pattern, this is the one you should get. |