---
# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. // SPDX-License-Identifier: CC-BY-SA-4.0
title: Robot modeling
permalink: /modules/4/robot-modeling.html
---

What if we wanted to modify the robot, for example adding new sensors?

There are two main aspects that can be modeled about the robot:
- the physical design.
- the sensor configuration.

In this module we will focus on the sensor configuration with a brief overview on the physical design of the robot.

Let's see in the [next unit]({{ site.baseurl }}{% link _modules/mod-4b-urdf.md %}) the main elements to modify the robot.