There are two deliverables for this project. The first deliverable is a circuit design document, which should be submitted as a single PDF (you may use whatever method you are comfortable with to create the PDF, but I recommend using a word processor such as MS Word or Google Docs. Please ask if you are unsure how to do this). This document should include a truth table for both the multiplexor (the truth table can be for a 4x1 mux with 1-bit inputs) and the priority encoder. These truth tables should then be convert into to Boolean equations. I highly recommend that you simplify these equations before proceeding to implementation in Logisim because this will reduce the difficulty of laying out the circuit. That being said, I am not requiring that you simplify your Boolean equations (and in some cases a less simplified equation is easier to create as a schematic). You should not attempt to implement anything in Logisim until you have completed your design document.