In this setting, the camera is mounted on the end**-**effector of the robotic arm, making the transformation from camera to ee, ${}^{ee}H_{camera}$, stationary.

https://support.zivid.com/en/latest/academy/applications/hand-eye/hand-eye-calibration-problem.html

In this setting, the target object will be fixed in the world, so that the transformation from target object to the robot base ${}^{base}H_{object}$ will be constant.