@article{(Open Science Index):https://publications.waset.org/pdf/14351,
	  title     = {The Impact of Upgrades on ERP System Reliability},
	  author    = {F. Urem and  K. Fertalj and  I. Livaja},
	  country	= {},
	  institution	= {},
	  abstract     = {Constant upgrading of Enterprise Resource Planning
(ERP) systems is necessary, but can cause new defects. This paper
attempts to model the likelihood of defects after completed upgrades
with Weibull defect probability density function (PDF). A case study
is presented analyzing data of recorded defects obtained for one ERP
subsystem. The trends are observed for the value of the parameters
relevant to the proposed statistical Weibull distribution for a given
one year period. As a result, the ability to predict the appearance of
defects after the next upgrade is described.},
	    journal   = {International Journal of Economics and Management Engineering},
	  volume    = {5},
	  number    = {11},
	  year      = {2011},
	  pages     = {1492 - 1496},
	  ee        = {https://publications.waset.org/pdf/14351},
	  url   	= {https://publications.waset.org/vol/59},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 59, 2011},
	}