A method for monitoring the level of computing capacity allocated to a hardware platform comprising at least one computing unit on which one or more software applications, composed of active software components, will be executed, a computing capacity controller, said computing capacity controller being able to act on a voltage-frequency pair level of said computing unit, characterised in that said method has at least the following steps: a) the computing capacity controller receives within a maximum estimable time t max, a piece of information I rfd of receiving triggering factors F D for deadlines E of active software components, b) the computing capacity controller receives a piece of termination information I t attached to the triggering factors F D, next deadlines E of the active software components of the software applications and a criticality of these deadlines E, each deadline E being defined as critical if a voltage-frequency pair level V fe of the computing unit must be at a minimum value V min from the reception of a triggering factor F D of said deadline E, c) when the computing capacity controller receives an indication of the end of processing of all the active software components, c1) said controller tests whether a time between two pieces of triggering information is sufficient by using a threshold value S t, c2) if so, the computing capacity controller will lower the level of the voltage-frequency pair of the computing unit, d) when receiving triggering factors F D of the software applications, the computing capacity controller will look at the criticalities C of the deadlines E of the active software components of the software applications, and will activate the critical software applications, for the non-critical software applications, the computing capacity controller raises the voltage-frequency pair level of the computing unit, and in that the software applications have a periodic deadline and in that an assignment request for the voltage-frequency pair is made in advance by a time at least equal to a latency of the computing unit involved for performing said change. a) the computing capacity controller receives within a maximum estimable time t max, a piece of information I rfd of receiving triggering factors F D for deadlines E of active software components, b) the computing capacity controller receives a piece of termination information I t attached to the triggering factors F D, next deadlines E of the active software components of the software applications and a criticality of these deadlines E, each deadline E being defined as critical if a voltage-frequency pair level V fe of the computing unit must be at a minimum value V min from the reception of a triggering factor F D of said deadline E, c) when the computing capacity controller receives an indication of the end of processing of all the active software components, c1) said controller tests whether a time between two pieces of triggering information is sufficient by using a threshold value S t, c2) if so, the computing capacity controller will lower the level of the voltage-frequency pair of the computing unit, d) when receiving triggering factors F D of the software applications, the computing capacity controller will look at the criticalities C of the deadlines E of the active software components of the software applications, and will activate the critical software applications, for the non-critical software applications, the computing capacity controller raises the voltage-frequency pair level of the computing unit, and in that the software applications have a periodic deadline and in that an assignment request for the voltage-frequency pair is made in advance by a time at least equal to a latency of the computing unit involved for performing said change.