%%
Last Updated:
- [[2021-04-19]]
- [[2020-12-07]]
%%
Execution parameters are parameters whose values can be changed at runtime.
They are sometimes called "runtime variables" or "environment variables".
## Use cases
- Changing environment details: domain, port (ST vs staging vs UAT)
- assigning different weights to transactions or scenarios
- changing the load profile
- using different credentials or other dynamic authentication tokens in headers that can only be determined at runtime
- Output results elsewhere