1	Programming MIS-Takes Mr. A.
2	Programming MIS-Takes Programmers always work alone We use separate computers, files, etc. Code is a write-once medium Training heavily emphasizes writing Programs are not reused after completion Correctness must come first Other considerations are postponed We don’t explicitly learn other qualities
3	Programmers always work alone
4	Programmers work together Team members Analysts Designers Coders Testers Technical writers Marketers Customers Requirements phase Installation Technical support Peers Pair programming Code reviews
5	Programming MIS-Takes Programmers always work alone We use separate computers, files, etc. Code is a write-once medium Rewriting is seldom performed Few people read code Correctness must come first Other considerations are postponed We don’t explicitly learn other qualities
6	Reading, writing, and re-writing
7	Programming MIS-Takes Programmers always work alone We use separate computers, files, etc. Code is a write-once medium Rewriting is seldom performed Few people read code Correctness must come first Other considerations are postponed We don’t explicitly learn other qualities
8	Clarity induces correctness Clear Simple Readable Concise Consistent Correct Efficient Small Quick Secure Testable Portable Maintainable Interoperable Compatible Reliable
9	Scenario Game Find the min and max values in a vector of high scores. If someone beats the min score, they enter the champion’s circle. If they beat the max score, they become the reigning champion. Business application In order to make a graph, find the min and max values so that all values fit on the graph.
10	Programmers work together Two programmers One solution
11	Not like this
12	Programmers work together Driver of pair programming team Controls keyboard and mouse Enters the code Explains the reasoning to enable discussion Responds constructively to feedback Navigator of pair programming team Keeps a big picture strategic view Watches and alerts the driver of problems Thinks of alternatives and looks up resources Asks questions
13	Not like this
14	Code is often read and re-written Four versions from internet For/while Count up/down Single/multiple function Commented/uncommented Reuse the best parts to create a new version
15	Clarity induces correctness Before Unclear Inconsistent Buggy After Clear Consistent Correct
16	Instructions Draw a card, find your partner and computer Read and understand the code together Pick a base version Work together as driver and navigator Copy files and start a CodeWarrior project Clean it up first and rewrite it as myHiLo Make the tests pass Demonstrate your work