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The use of cloud computing services appears to offer significant cost advantages. The most frequently mentioned advantages include investment and operating costs saving, high elasticity of services as well as increased flexibility of certain business processes. On the other hand, the adoption of cloud computing in enterprise environments is non-trivial. Understanding the organizational benefits and drawbacks is far from straightforward. The adoption of cloud computing results in a considerable amount of organizational change that will affect employees. The aim of this contribution is to conduct and describe the evaluation model of cloud computing that would be applicable in business practice for evaluating the effectiveness of such investments. The target users of this model are primarily people in companies with decision-making power in the investment field. The appropriate starting point based on the multi-criteria evaluation was the cost–benefit analysis (CBA) approach for cloud computing (CC). A multi-method approach (systematic literature review, analysis of real cloud computing services, expert interview, case study) was applied in order to develop and evaluate the formal model. We found that our model fits the practical requirements and supports decision-making in cloud computing. [ABSTRACT FROM PUBLISHER]

As the World Health Organization reports, mental illnesses have a serious impact on more than 25% of all population people worldwide at some time during their lives. Mental illnesses are universal; they affect people of any age, both women and men, the rich and the poor, no matter from which urban and rural environment they come from. Mental illnesses have an enormous economic effect on societies and on the quality of people’s life, including their families. The purpose of this study is to describe social and economic aspects of Alzheimer’s disease (AD) with respect to the early diagnosis. The authors provide an analysis of costs of treatment and care in the selected countries where the data from the available studies are recalculated into comparable quantities. Furthermore, the authors analyse aspects and possibilities of care for patients with AD in the informal (home) environment in compliance with individual phases of this disease. In the article, the method of research of available sources focusing on social and economic issues of AD is used. In order to compare costs of treatment and care of the AD patients, the Qualitative Comparative Analysis Method is exploited. The analyses have shown that the metric systems for monitoring the direct and indirect costs for the individual phases of AD are different. [ABSTRACT FROM AUTHOR]