The present application discloses a method for communicating between at least two different levels of software components. The method includes establishing a command set common to the at least two different levels of software components. Additionally, the method includes providing a command decoder operable by both of the at least two levels of software components, the command decoder configured to decode the command set. By providing a common command set between different levels of software components, such as a software driver and a BIOS, where the commands within the command table are interpreted and executed by an identical command decoder that interprets and executes the same command tables, this ensures that the same features or functions are implemented or executed in the same way across different levels of the software components. Accordingly, redundant implementation of the same functions by different software components is eliminated. Additionally, when modification of the BIOS, for example, is performed, this modification only needs to be done in one place (i.e., the command table) rather than in each software component.