1. A method comprising: storing, in a memory, an executable graphical model having a plurality of executable time-based components, said executable graphical model including at least one user-configurable, executable graphical post component having at least one input for receiving at least one input signal, said at least one user-configurable, executable graphical post component being configured to post an event when a condition associated with said at least one input signal of said at least one user-configurable, executable graphical post component is satisfied; associating, by a processor coupled to the memory, at least one executable time-based component of said executable graphical model with said event; identifying when said condition is satisfied during execution of said executable graphical model; posting, by said at least one user-configurable, executable graphical post component, an occurrence of said event when said condition is satisfied; notifying said at least one executable time-based component that is associated with said event of said occurrence of said event; and executing, as part of the execution of said executable graphical model, said at least one executable time-based component in response to said notifying.