1719	 A Methodology for Calculating and Optimizing Real-Time System Performance	 The continually increasing size complexity number of types and cost of data processing systems are causing serious re-examination within government and industry of the criteria for and methods of calculating and optimizing data processing system cost and performance. Real-time data processing systems as typified by the automated airline reservation system are discussed in this paper. Criteria for evaluating performance are described a methodology for calculating and optimizing is outlined and the method is illustrated by carrying out a portion of the performance calculation and the optimization of a drum-oriented message switching system. real-time system analysis real-time system design real-time system performance criteria real-time system cost performance ratio
