Browse > Article
http://dx.doi.org/10.9716/KITS.2011.10.4.119

Economic Analysis for Packaged Software Adoption : Considering the Number of Concurrent Users  

Yoon, Ho-Jung (서울과학기술대학교 IT정책전문대학원, 한국개발연구원 전산팀)
Ahn, Jae-Kyoung (서울과학기술대학교 글로벌융합산업공학과)
Publication Information
Journal of Information Technology Services / v.10, no.4, 2011 , pp. 119-131 More about this Journal
Abstract
When your company buys packaged software, the company needs to determine how many software licenses must be purchased. If the quantity is too small, it will be not enough for the users to access the programs at anytime within the company. Conversely, if the quantity is too large, they will waste a lot of money. In this paper, we surveyed several number of researchers of K institute and derived the using pattern of a specific packaged software. We estimated a proper number of packaged software licenses by Erlang Loss Function, the Engset Model, and simulation model. With the results of the three methodologies, we were able to empirically verify economic benefits of packaged software purchase by comparing NPV (Net Present Value) between user licenses and network licenses. Consequently, TCO of user licenses is much higher than that of network licenses. We had probabilistically calculated proper number of licenses based on the using pattern of users. Hence, this paper will be useful for decision makers who are going to determine package software's type and quantity from an economic perspective.
Keywords
Economic Analysis; Erlang Loss Function; Engset Model; Simulation; Packaged Software Licenses;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 이호우, "대기행렬이론 확률과정론적 분석(제3판)", 시그마프레스, 2006.
2 Manuel D. Rossetti 지음, 장성용, 문덕희, 이영해, 최성훈, 홍성조 옮김, "ARENA를 활용한 시스템 모델링 및 시뮬레이션", 텍스트북스, 2009.
3 김동진, 문성암, 김영휘, "M/M/C 대기 행렬모형의 서버 제어정책을 이용한 고속도로 톨게이트 운영 효율화 방안 연구", 로지스틱연구, 제12권, 제2호(2004), pp.13-32.
4 최재혁, 이배진, 강창욱, 최경업, 김정미, "병원약제부의 적정약사수를 결정하기 위해 대기시간을 고려한 시뮬레이션 모델 개발", 산업경영시스템학회지, 제21권, 제48호(1998), pp.223-232.
5 이건창, "경영의사결정을 위한 경영정보처리론", 무역경영사, 2005.
6 최병선, "계산재무론", 세경사, 2007.
7 한국개발연구원, "예비타당성조사 수행을 위한 일반지침 수정․보완 연구(제5판)", 2008.
8 김정석, 김광용, "패키지 SW의 서비스품질과 제품품질이 사용자만족과 구전 및 재사용의도에 미치는 영향에 관한 연구", 한국IT서비스학회지, 제8권, 제2호(2009).
9 Mika Murtoja rvi, Jouni Ja rvinen, Mika Johnsson, Timo Leipa la, and Olli S. Nevalainen, "Determining the Proper Number and Price of Software Licenses", IEEE Transactions on Software Engineering, Vol.33, No.5(2007).
10 Guoping Zeng, "Two common properties of the erlang-B function, erlang-C function, and Engset Blocking Function", Mathematical and Computer Modelling, 2003.
11 Eric, W. M. Wong, Andrew Zalesky, and Moshe Zukerman, "On Generalizations of the Engset Model", IEEE Communications Letters, Vol.11, No.4(2007).
12 James, R. B., "Traffic System Design Handbook", IEEE PRESS, 1993.
13 Rolls, D. A., G. Michalidis, and F. Hernandez-Campos, "Queueing Analysis of Network Traffic : Methodology and Visualization Tools", Computer Networks, Vol.48(2005), pp.447-473.   DOI   ScienceOn
14 DSES, T. R. Willemain, H. Fand, and H. Ma, "Statistical Analysis of Intervals between Projected Airport Arrivals", Technical Report, No.38-04-510, 2001.
15 Bouras, C., V. Kapoulas, G. E. Pantziou, and P. G. Spirakis, "Competitive Video on Demand Schedulers for Popular Movies", Discrete Applied Math, Vol.129(2003), pp.49-61.   DOI   ScienceOn
16 http://www.stata.com.
17 Kirk Beaty, Andrzej Kochut, and Hidayatullah Shaikh, "Desktop to Cloud Transformation Planning", Parallel and Distributed Processing, 2009.
18 http://ecos.bok.or.kr.
19 http://www.eviews.com.