PACE (communication methodology)
Primary, alternate, contingency and emergency (PACE) is a methodology used to build a communication plan. The method requires the author to determine the different stakeholders or parties that need to communicate and then determine, if possible, the best four forms of communication between each of those parties. PACE also designates the order in which an element will move through available communications systems until contact can be established with the desired distant element(s). Ideally, each method will be completely separate and independent of the other systems of communication. For each method, the receiver must first sense which one the sender is using and then respond.