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In this work, we report a study carried out to identify a set of metrics to early estimate the development effort of mobile apps. The applied methodology was inspired by the work of Mendes et al. who addressed a similar problem in the field of web apps. In particular, we extracted an initial set of metrics by analyzing the online quotes forms that companies made available on their websites. Afterward,...
Effort estimation is more challenging in an agile context, as instead of exerting strict control over changes in requirements, dynamism is embraced. Current practice relies on expert judgment, where the accuracy of estimates is sensitive to the expertise of practitioners and prone to bias. In order to improve the effectiveness of the effort estimation process, the goal of this research is to investigate...
On social media platforms, companies, organizations and individuals are using the function of sharing or retweeting information to promote their products, policies, and ideas. While a growing body of research has focused on identifying the promoters from millions of users, the promoters themselves are seeking to know what strategies can improve promotional effectiveness, which is rarely studied in...
The main purpose of this study is to present an alternative benchmarking approach that can be used by national regulators of utilities. It is widely known that the lack of sizeable data sets limits the choice of the benchmarking method and the specification of the model to set price controls within incentive-based regulation. Ill-posed frontier models are the problem that some national regulators...
In this paper, methods of controlling of working hours and increasing its efficiency, means: formalized algorithm of software development project modified Gantt chart and software prototype for controlling working hours, are described.
In this paper a fuzzy multidimensional structure to analyze cost data in construction projects is proposed. As we will see, the use of a fuzzy structure provides a more intuitive use of the information associated to construction domain. This way, primary evaluation criteria in assessing the success of construction projects like economic objectives can be more friendly controlled. We propose both a...
We consider four existing methods in order to determine individual fill rates when a global target fill rate has been established. Given the drawbacks of these approaches, needing numerical optimization and especially unsuitable in the context of spare parts, we present a new approach which provide a closed form formula more focused on the characteristics of these items. This novel approach is validated...
Effort estimation is a project management activity that is mandatory for the execution of software projects. Despite its importance, there have been just a few studies published on such activities within the Agile Global Software Development (AGSD) context. Their aggregated results were recently published as part of a secondary study that reported the state of the art on effort estimation in AGSD...
Software professionals do not always clarify what they mean by their effort estimates. Knowing what is meant by an estimate is, however, essential when adding individual effort estimates from a work breakdown structure to find the estimated total effort. Adding the most likely instead of the mean effort of a set of cost elements may result in substantial underestimation of the total effort. In a survey...
The paper proposes a description of information decision support system in the tourism domain and a set of methods and algorithms for generating recommendations for a user that allow significant increase of the system usability. The system generates for the user recommendations which attractions at the moment are better to attend based on the user preferences and the current situation in the location...
Software development effort estimates are frequently too low, which may lead to poor project plans and project failures. One reason for this bias seems to be that the effort estimates produced by software developers are affected by information that has no relevance for the actual use of effort. We attempted to acquire a better understanding of the underlying mechanisms and the robustness of this type...
Even if the adaptation of the COBRA method to the web has many appealing characteristics, its effectiveness in predicting Web application development effort has been previously assessed only in one empirical study, using the Web Objects measure. The study provided positive results,but it is widely recognized that several empirical investigations should be performed to validate/confirm the usefulness...
Managing the product's backlog is a major task in agile projects. This case study reports on one organization's experiences from the transition to a backlog management tool and its contribution to improving sprint planning. Our key lessons learnt are that a tool is particularly appropriate to organize and specify backlog items in a transparent manner and to handle dependencies. However, we also observed...
This article documents important connections between cost overruns and bidding. It also recommends how clients should design their bidding process to avoid selecting bids based on overoptimistic cost estimates. The recommendations provided reduce the risk of initiating projects that have unrealistic plans, time overruns, low software quality, high maintenance costs, and inflexible providers. Although...
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