A Study on the Maintenance Cost Estimation Model for Application Software by Considering Risks

Abstract

Submitted：August 7, 2015 1 st Revision：September 7, 2015 Accepted：September 9, 2015 * 한전KDN(주) 전문위원 ** 한전KDN(주) 경영정보팀장 *** 숭실대학교 경영학부 교수, 교신저자 Software is more diverse and complex and the level of importance for the maintenance of application software to securely operate software is also gradually increasing in proportion. The calculation method for maintenance cost of application software applied in Korea public enterprises is involved in the range of 10 to 15% of development cost, depending on the Software Project Cost Estimation Guide. Moreover, as most software maintenance cost estimation procedures do not take into consideration of the risk factors related of maintenance, it can be seen as a main cause for the occurrence of maintenance related accidents. This study proposes a maintenance cost estimate model that takes into consideration of the risks related to the software maintenance activities to improve and resolve issues arising from the estimation of maintenance cost. In doing so, maintenance risk factors are analyzed and a risk index is derived through the analysis of risk levels based on the risk factors. Based on such analysis, a maintenance cost estimate method which reflects the maintenance risk index was established.