Conclusion for my critical report, please help me to have a check Without other choices, we had to set up all the elements and environment by modeling software though none of us know how to make a video using the computer model. We asked many people for help, but no one knew how to make a video by the software we use. So we have to made thousands of pictures in our modeling software and used pictures to make up a video. In order to obtain these pictures, we spent over 2 days. And then added some useful instruction partners, for example, arrows to show robot knows where it should go in its mind. Also, we used voices to show what robot is doing, such as package is put on its head, it throw package in the hole. In our envision, we could add many signs to exhibit what robots see during working, what information they receipt and what they think in their mind clearly. Unfortunately, we spent almost all the time in constructing scenes, so we did not have enough time to insert all the elements we want into the video, such as information returned from central control system. So when we exhibited to classmates and teachers, they held the view that our video did not convey the messages behind the system definitely. By watching the video, they were not able to understand how robots work and how information transfers in the sorting system. We must took this problem into consideration when we further developed the prototype to let system interacts with audience later.