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<b>Context:</b> Ever since the emergence of agile methodologies in 2001, many software companies have shifted to Agile Software Development (ASD), and since then many studies have been conducted to investigate effort estimation within such context; however to date there is no single study that presents a detailed overview of the state of the art in effort(More)
Nowadays, software systems are a key factor in the success of many organizations as in most cases they play a central role helping them attain a competitive advantage. However, despite their importance, software systems may be quite costly to develop, so substantially decreasing companies' profits. In order to tackle this challenge, many organizations look(More)
<b>Context:</b> There are numerous studies on effort estimation in Agile Software Development (ASD) and the state of the art in this area has been recently documented in a Systematic Literature Review (SLR). However, to date there are no studies on the state of the practice in this area, focusing on similar issues to those investigated in the(More)
Both Agile Software Development (ASD) and Global Software Development (GSD) are 21 st century trends in the software industry. Many studies are reported in the literature wherein software companies have applied an agile method or practice GSD. Given that effort estimation plays a remarkable role in software project management, how do companies perform(More)
BACKGROUND The 2014 Ebola epidemic is the largest in history, affecting multiple countries in West Africa. Some isolated cases were also observed in other regions of the world. METHOD In this paper, we introduce a deterministic SEIR type model with additional hospitalization, quarantine and vaccination components in order to understand the disease(More)
Context: Agile methods are used both by both co-located and globally distributed teams. Recently separate studies have been conducted to understand how effort estimation is practiced in Agile Software Development (ASD) in co-located and distributed contexts. There is need to compare the findings of these studies. Objectives: The objective of this(More)
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