This article describes how Universal Mobile Telecommunications System (UMTS) is a 3G cellular network standard that uses location update (LU) and location search (LS) for mobility management. LU requires update in two location registers (LRs) - home LR (HLR) and visiting LR (VLR) - where one HLR...

Purpose – To identify, discuss and provide a solution for a common problem in the mathematical analyses in business analyses, namely, paralysis by analysis. Design/methodology/approach – The paper first discusses the scale and frequency of the paralysis by analysis problem, before discussing...

Purpose – Item classification based on ABC‐XYZ analysis is of high importance for strategic supply and inventory control. It is common to perform the analysis with past consumption data. In this context, the purpose of this study is to test the hypothesis that an integration of demand...

Purpose – The paper seeks to develop an analytical theory of project investment. Design/methodology/approach – The authors derive a partial differential equation that the variable cost of a project should satisfy, determine a proper initial condition through a thought experiment, and solve...

Retailers rely on strong marketing programs to make sales in a competitive environment. One of the biggest sectors of marketing is email loyalty programs. The industry uses Click Through Rate to measure the effectiveness of an email marketing campaign. Click Through Rate measures the ratio...

Missing value arises in almost all serious statistical analyses and creates numerous problems in processing data in databases. In real world applications, information may be missing due to instrumental errors, optional fields and non-response to some questions in surveys, data entry errors, etc....