CS257 Software Design
Monday, 12 September 2022

+ Welcome!
- I'm Jeff. Olin 301A. jondich.
- Masks: the CS dept and Olin 310
- Meet each other

+ What makes software good?
- Readability of source code
- Documentation
- Ethical purpose
- Easy to debug
- Functionality
- Efficiency
- Easy-to-use UI
- Fills an actual need
- Functionality for edge cases
- Security
    - [don't let users mess with code]
- Transparent: what is this sw doing?

Jeff's short list
- Correct
- Meets the needs of people it's intended for
- Maintainable

+ Examples of real software that
- Makes people's lives better
    - Hearing aid control
    - Moodle
    - Zoom
    - Ad block
    - Stoplight control software
    - MS Office
- Makes people's lives worse
    - Zoom
    - Military software: used for killing people
    - Malware
    - Torrent?
    - Find My Phone, etc.
        tracking in general










+ Logistics
- Quick tour of the course website
- No Moodle
- Laptops in classroom optional (but you might want them)
- Different backgrounds

+ This week
- Get set up
- Meet Unix, git, and GitHub
- Readings and discussions about low-level code quality

+ Next week
- Command-line interface design and implementation
- Test-driven development and unit tests