* Formal: The scientist conducted a systematic review of the existing research on climate change.
* Informal: I'm trying to be more systematic about my studying, so I've made a detailed schedule.
* Descriptive: The museum's collection was organized in a systematic manner, making it easy to navigate.
* Negative: The company's approach to problem-solving was haphazard, rather than systematic.
The word "systematic" implies a methodical and organized approach, often involving a set of steps or procedures.