1 1 0 0 0 0 0 0 1 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 0 0 512000000 1 32 1024 768 2825000000 0 2313000000 0 512000000 10.000000 1.000000 2 4478 65 1 22050 0 49 0 Support versus Operation 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 1 512000000 713000000 1 32 1024 768 2825000000 512000000 2112000000 512000000 713000000 10.000000 1.000000 2 4478 65 1 22050 0 49 1 System Support Activities 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 2 713000000 906000000 1 32 1024 768 2825000000 713000000 1919000000 713000000 906000000 10.000000 1.000000 2 4478 65 1 22050 0 49 2 System Maintenance Objectives 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 3 906000000 1234000000 1 32 1024 768 2825000000 906000000 1591000000 906000000 1234000000 10.000000 1.000000 2 4478 65 1 22050 0 49 3 Testing 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 4 1234000000 1813000000 1 32 1024 768 2825000000 1234000000 1012000000 1234000000 1813000000 10.000000 1.000000 2 4478 65 1 22050 0 49 4 System Recovery Activities 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 5 1813000000 2182000000 1 32 1024 768 2825000000 1813000000 643000000 1813000000 2182000000 10.000000 1.000000 2 4478 65 1 22050 0 49 5 Technical Support 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 6 2182000000 2441000000 1 32 1024 768 2825000000 2182000000 384000000 2182000000 2441000000 10.000000 1.000000 2 4478 65 1 22050 0 49 6 System Enhancement Tasks 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week7\Chap20Summary\Chap20Summary.avi 0 7 2441000000 2820000000 1 32 1024 768 2825000000 2441000000 5000000 2441000000 2820000000 10.000000 1.000000 2 4478 65 1 22050 0 49 7 System Obsolescence 1 0 Support versus Operation 1 0 512000000 System Support Activities 1 1 713000000 System Maintenance Objectives 1 2 906000000 Testing 1 3 1234000000 System Recovery Activities 1 4 1813000000 Technical Support 1 5 2182000000 System Enhancement Tasks 1 6 2441000000 System Obsolescence 1 7 32 0000 No additional notes. 512000000 Teaching Notes Each of these will be expanded on in the following slides. 713000000 No additional notes. 906000000 Teaching Notes Find a demonstration version of a testing program (frequently 971600000 available on the Web) and show it to the class. Find a demonstration version of 1037200000 a configuration management program (frequently available on the Web) and show its 1102800000 version control features to the class. Or use a programming environment the students have 1168400000 used in programming classes (such as Visual Studio) and show its versioning features. 1234000000 No additional notes. 1813000000 No additional notes. 2182000000 No additional notes. 2441000000 Teaching Notes The more maintenance and enhancement done on a system, 2488370000 the more the original design needs to be re-thought. Code often becomes less structured. 2535740000 The overall system becomes less efficient in terms of performance and less elegant in 2583110000 terms of user workflow. Actually obsolescence has been reached less than analysts have 2630480000 anticipated (or at least system owners have been less willing to commit to redesigns less 2677850000 than analysts have anticipated). This is what led to the Y2K crisis. It was not 2725220000 that analysts and programmers in the 1980s didn’t know that a turn-of-the-century was coming. 2772590000 Rather they assumed that their systems would be obsolete by the time it did come.