Cold starting includes the steps of directly converting process gas into thermal energy by a catalytic reaction, and utilizing the thermal energy to heat up the fuel cell stack, wherein the process of heating up the fuel cell stack is carried out separately from the operation of the fuel cell facility. The notification message comprises at least one context rule and a notification message. The program segments may have memory pages allocated to the segments by the operating system as other full programs, and may deallocate memory pages when the segments finish operating.