| Title | A Study on the Limitation of Cast-Reliability Optimal Release Policies for Software Systems | 
					
	| Keywords | cost-reliability ; NHPP ; mean value function ; optimal release ; SRGM ; error detection rate | 
					
	| Abstract | In discuss how the existing study results that decide optimum release time are rational and reasonable, considering the cost and reliability simultaneously in this paper. As a study method this paper examines the proposed results and their methodologies centering around the existing related papers for the general cost-reliability optimal release policies, especially their limitation for the derived results. |