Maintainability; purpose of testing and defensive design

00:00 Intro and Waffle
01:49 Quiztime
04:03 Topics covered this session
04:56 Programming techniques
05:03 SQL quick recap
06:51 Procedures: quick recap
07:45 Functions: quick recap
08:43 File handling quick recap
09:19 What is defensive design?
10:23 Validation
13:42 Anticipating misuse
16:44 Maintainability
19:58 Purpose of Testing
22:01 Test Data
24:48 Quiztime
32:27 Student Questions on the Specification