We will use codewalks, a common practice at software companies, to evaluate some of your programs. A codewalk is a presentation where you, the programmer, convince us, a jury, of specific properties of your program. You accomplish this by presenting your program and answering questions about it. We are most interested in
We will conduct two or three codewalks during the semester. Codewalks will evaluate the programs turned in as solutions to regular homework assignments. Each program will receive about 30 minutes of scrutiny. The code you present must the be the same code you turned in as your homework solution. Here's the catch: You don't find out whether we will conduct a codewalk on an assignment until after you turn in your solution for it. No excuses or exceptions; you read it here.
We conduct codewalks for two reasons, one pedagogic and one technical. The technical reason is that the assignments in this course offer a microcosmic example of typical software evolution, so this is an opportunity for you to hone your software construction skills. The pedagogic reason is that codewalks offer students the richest and most immediate critiques of their programs, while giving instructors a very effective way of judging student understanding.
The real-time nature of codewalks tends to favor simplicity and cleanliness over both sloppiness and (excessive) cleverness. In this course, it's extremely unlikely that advanced language features will offer either desirable property. Keep things simple and you are least likely to run afoul of questions.
A codewalk is primarily a presentation, by you to us, so all the usual formalities of presentations apply (except, of course, please don't dress formally for the occasion!). It is not a chat or discussion session. Treat it as you would a formal presentation in any other course. The only difference is the content of your slides.
Your presentation must cover the programs that you wrote for the assigned homework. Follow these simple rules:
You should present the complete content of your program. Be flexible in your presentation. We may ask you to skip the details of some part, elaborate on the details of some other part, or even re-order your presentation entirely. Remind yourself of the goal of a code-walk.