Use of Digital Technologies in Education presents itself as an indispensable condition nowadays. Because through these one can obtain a dynamic, collective and participatory learning. This work provides a scientific research that aims to investigate the potential of computing platforms such as Web 2.0 for a collaborative learning environment and thus present them as a locus of collective construction of knowledge. For this purpose, we analyze the platforms Family Zoho, Google and Platform Family Sloodle. This research was conducted qualitatively. The analysis of these environments is meant to characterize the value that the platforms attach to individual and collective learning and show how these environments can be used as complementary tools in the development of educational work. Thus, it is a description of each platform analyzed in order to present their technologic resources and how these may be of use in Education in order to provide help in the collaborative learning processes and collective construction of knowledge. / O uso das Tecnologias Digitais na Educação se apresenta como condição indispensável na era atual, já que por meio destas pode-se obter um aprendizado dinâmico, coletivo e participativo. O presente trabalho objetivou investigar as plataformas virtuais da Web 2.0 com vistas a promover a aprendizagem colaborativa e apresentá-las como lócus de construção coletiva do conhecimento. A metodologia da pesquisa é de natureza qualitativa visando descrever e apresentar uma análise das plataformas da Família Zoho, Família Google e Sloodle, a fim de evidenciar o potencial pedagógico das mesmas e referenciá-las como componente de mediação entre teoria e prática para a Educação. Os resultados apontam que as plataformas da Web 2.0 predispõem uma abordagem multidisciplinar, envolvendo várias áreas da Educação e permitindo aos usuários destes ambientes o desenvolvimento cognitivo, pensamento crítico, dinamismo e autonomia, por se tratar de instrumentos inovadores que possibilitam a reformulação da proposta educativa e os conceitos de ensino-aprendizagem. Este estudo mostra ainda que questões relativas às implicações pedagógicas da utilização das plataformas como ferramenta de apoio educacional fica em aberto, podendo ser alvo de futuras investigações que tentem comprovar a eficácia destas novas práticas para o ensino aprendizagem.

In today’s world of rapid technological development one cannot deny the importance of collaborative writing systems. Besides many advantages of a collaborative writing system the major one is to allow its end users to work in collaboration with each other without having to physically meet. In the past various researches has been carried out for the usability evaluation of collaborative writing systems using the think aloud protocol method however there is no study conducted on the comparison of different usability evaluation methods in the context of collaborative writing systems. In this thesis work the authors have tried to find the limitations and capabilities of think aloud protocol and co-discovery learning methods in the context of a collaborative writing system called ZOHO, as well as the usability evaluation of ZOHO using think aloud protocol and co-discovery learning methods. The authors found various usability errors in ZOHO. Apart from this the authors also observed the two usability evaluation methods when they were used for usability evaluation of ZOHO. The authors found that both the methods have its’ own benefits and drawbacks. While the co-discovery learning method was fast enough, it was expensive in terms of human resource. On the other hand think aloud protocol method was slow to perform but there was less human resource used. Both the usability methods found almost the same usability errors. / In this thesis work the primary objective was to figure out the limitations and capabilities of think aloud protocol and co-discovery learning methods in the context of ZOHO; a collaborative writing system. Apart from this the secondary objective of this thesis was to conduct the usability evaluation of ZOHO and to find out what makes ZOHO ineffective, inefficient and unsatisfactory. The authors carried out usability tests on ZOHO using the think aloud protocol and co-discovery learning methods. After the tests results’ analysis the effectiveness, efficiency and satisfaction level of ZOHO was figured in section 7.2.1, 7.2.2 and 7.2.3 while the usability problems that make ZOHO ineffective, inefficient and unsatisfactory are discussed in section 7.2.4 of this thesis. Apart from the usability of ZOHO, the authors were also able to identify strong and weak points of the think aloud protocol and co-discovery learning methods when used for the usability evaluation of a collaborative writing system. They found that think aloud protocol testing is better if the evaluator is cost cautious or if he is looking for a detailed usability problems but does not cares about the time taken by the test. However if the evaluator cares about the test time and he cares less about the cost in terms of participants required for the test then he should use the co-discovery method for testing a collaborative writing system.

The thesis is focused on the analysis of presently offered products supporting Business Intelligence (BI) which are affordable for small and medium-sized enterprises (SMEs). Current BI solutions available to SMEs are mostly offered via Cloud computing, specifically in the form of Software as a Service (SaaS) as it requires low initial acquisition costs. The objectives of this thesis are to analyse the work in applications for BI in cloud that can be used by SMEs and to analyse in detail the comparison the worldwide extended reporting tools distributed as SaaS in the lower price category. The theoretical part provides a description of the Cloud computing and the BI system. In the practical part are selected following products: IBM Watson Analytics, Qlik Sense Cloud, Zoho Reports, Tableau Public and Microsoft Power BI. Practical testing of these applications was based on evaluation of the selected metrics with weights calculated by using the Fuller's triangle. Analyses and the information form the basis for comparison of selected applications. The contribution of this thesis is in discovering the strengths and weaknesses of these BI solutions. The output of this thesis can be used as a source for the selection of BI applications for SMEs.