property to support security level analysis thread thread group process system thread thread group process system property to support analysis of missrate propagation along flows port property to support weight analysis system processor memory bus device system processor memory bus device system processor memory bus device properties used in architecturee consistency checker that ensures delta based information is communicated with guaranteed delivery state data representation data port Protocol characteristics for connections it represent the desired QoS characteristics system bus connections manual priority assignment for threeads thread properties to support specification of partitions and latency analysis The partition execution rate, specified through Partition_Latency, contributes to flow latency on cross-partition communication system process system process properties to support adjustment of execution time according to processor speed execution time is specified in terms of a reference processor Its speed is specified by the property constant reference_cycle_time The speed of processors is specified by cycle_time Adjustments to the execution time are made according to the cycle time ratio 1 GHz processor as default reference cycle time time to execute one processor cycle Used to convert execution time into processor cycles default cycle time of a 1 GHz processor processor If reference_proc is specified that the specified processor is used as reference processor instead of the above constant processor thread thread group process system device processor speed scaling factor. default is assumed to be 1. processor system conversion factor from cycle time to instruction time (default is assumed to be 1 processor system The next set of properties are used in the resource budgeting plug-in number of instructions that can be executed on a processor (MIPS, MIPS, GIPS) processor system number of instructions allocatetd to an application component as budget devices may have need for execution of instructions to handle their drivers thread thread group process system device RAM capacity of a platform component memory system RAM budget of an application component. Devices may have RAM need thread thread group process system device ROM capacity (a ROM memory component is recognized by the name of the component classifier including "ROM" in its name memory system ROM budget by an application component thread thread group process system device capacity of a power source bus system power draw (demand) of a component bus power supply by a component bus capacity of a bus component for transfer of data bus system demand for data transfer by a connection connections actual RAM requirement by application component This number may be supplied from a compiler when compiling the source This number is related to the Source_Code_Size and Source_Data_Size properties Those properties do not distinguish between RAM and ROM thread thread group process system device actual ROM requirement by application component thread thread group process system device Data Representation types types of protocol characteristics Speed in terms of instructions executed per second Power units Data volume units : amount of data per second