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Effort estimation for software customisation projects is a challenging task. Similar to the COCOMO approach, an initial estimate can be based on basic project characteristics, and then modified according to various productivity drivers. The aim of this paper is to build on an initial estimation model, generated from a set of contributing factors for software customisation projects, and to improve...
Many research projects on software estimation use software size as a major explanatory variable. However, practitioners sometimes use the ratio of effort for early phase activities such as planning and requirement analysis, to the effort for the whole development phase of the software in order to estimate effort. In this paper, we focus on effort estimation based on the effort for early phase activities...
This paper tries to design a hybrid appointment system with no-shows of regular patients (who book in advance) considering patient choice to increase clinic revenue and patient satisfaction. For this purpose, a Markov Decision Process (MDP) model with no-shows of regular patients considering patient choice is formulated in this paper. The capacity management problem is to decide which appointment...
For optimizing the balance between intellectual productivity and energy use in office buildings, we should reveal the mechanism of intellectual productivity variation of office workers. For this purpose, the authors had proposed an intellectual productivity model. The model is a state transit model based on short pauses while working. This model can explain the productivity variation of most of subject...
The process of making IT (security) policy decisions, within organizations, is complex: it involves reaching consensus between a set of stakeholders (key decision makers, e.g. CISOs/CIOs, domain experts, etc.) who might have different views, opinions and biased perceptions of how policies need to be shaped. This involves multiple negotiations and interactions between stakeholders. This suggests two...
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