The method of communication management should be tailored to each specific company as various factors such as hierarchies, communication infrastructure, security protocols all differ between companies. Multiple methods of communication should be implemented to prevent issues where one is not available. Regular meetings can allow for communication to take place as well as possibly see where other methods have failed since the last meeting that can be improved upon for next time. Emails are a good method to send a variety of different kinds of info to multiples parties simultaneously, provided the emails are checked. For very important information a second, more direct channel of communication might be helpful to confirm that the information was received.