Before forcing an input in a robotic system, what must be done first?

Forcing an input in a robotic system generally entails making adjustments that could significantly affect its operation. Therefore, it is crucial to conduct a simulation prior to forcing any inputs. Simulation allows engineers and operators to model the behavior of the robotic system under various conditions without making actual changes to the system. This preliminary step helps in identifying potential issues and ensuring that the adjustments are safe and effective in the context of the robot's control logic and operational parameters.

Simulating the input provides valuable insights into how the robotic system will respond, alleviating risks associated with introducing changes directly. By analyzing the outcomes of the simulation, operators can anticipate the consequences of the forced input and make necessary modifications or adjustments before applying it to the actual system, ensuring reliability and safety.

Other options, such as retesting or performing a hard reset, do not address the need to visualize or predict the impact of forcing an input. While reviewing might seem to be part of the process, it does not provide the hands-on, dynamic analysis that a simulation would offer. Thus, conducting a simulation is the most effective means to prepare for forcing an input in a robotic system.