CS257 Software Design
Wednesday, 2 April 2025

+ Questions?
- Computer setup
- Unix
- Other

+ Data-driven websites
- List some data-driven websites you use
    (are they useful? enjoyable? maddening? ...)
- List some problems you or people around you have
    that might be solved by data-driven websites
    (some overlap with previous list?)

Sites
- Duolingo
- YouTube
- Google Maps, Earth
- frisbeerankings.com
- any weather app
- DOGE cuts site
- tfrrs (track data)
- hulu, etc.
- cheese.com
- wikipedia.com/org

Problems
- info about historical weather data
- comparing athletes by this year's stats, historical, with themselves, etc.
    baseballreference.com
- data cleaning is hard


+ Unix lab
- Mental model of the file system
- "Working directory" and getting around
- Comparing command-line interface (CLI)
    to graphical user interface (GUI)

Unix issues
- where am I?  (cd, pwd, ls, prompt, ~ = home directory)
- moving around (cd .. -- change directory to parent directory
                 cd ../.. -- parent of parent, etc.)

- what's here? (ls, ls -a, ls -al, ls -aF --color,...)
- what is this thing? (ls -l filename, cat filename, head, tail, less) 
- compare to GUI


+ Coming up during weeks 1 and 2
- Project prep
    - partner and subject matter survey
    - team assignments
    - choosing a dataset
    - project proposal
- Tools
    - more Unix
    - git
- Techniques
    - test-driven development
    - command-line interface design & implementation