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- A systematic literature review on maturity models for information systems in higher education institutionsPublication . João Vidal de Carvalho; Vidal de Carvalho, Joao; Pereira, Rui Humberto; Álvaro RochaMaturity models have been introduced over the last five decades as guides and references for information system (IS) management in organizations from different sectors. In the education sector, maturity models have also been used to evaluate higher education institutions (HEIs) across several dimensions, such as information and communication technology (ICT), management, process management, course curricula, course/HEI accreditation, e-/m-learning, online courses and pedagogical strategies. In fact, HEIs are faced with enormous complexity due to the specificity and quantity of their processes. Based on the guidelines concerning a methodology for a systematic literature review, the maturity models of different subareas of education are identified and categorized in this paper. For each maturity model associated with HEIs’ ISs, the appropriate methodology for development and validation is identified, as well as the scope, stages and their dimensional characteristics. This study highlights the need to develop an IS maturity model that supports HEIs in their core business activities and management.
- Architecture of a maturity model for information systems in higher education institutions: multiple case study for dimensions identificationPublication . Rui Humberto Pereira; Pereira, Rui Humberto; joão vidal de carvalho; Vidal de Carvalho, Joao; Álvaro RochaHigher education institutions (HEIs) are complex and dynamic organizations in terms of information management, forcing their information systems to respond to enormous challenges and threats. In order to evaluate the HEIs’ information systems, we propose the development of a maturity model capable of supporting the role of HEI’s managers, as well as accreditation agencies, in the assessment of the maturity of these systems, thus, promoting continuous improvement. In this paper, we present and discuss our proposal for an architecture of the maturity model being developed. This one is based on a two-dimensional architecture composed of vertical and horizontal dimensions. We selected a multi-case study approach, based on five Portuguese HEIs, and reviewed the literature to identify the dimensions. This case study was supported by interviews with experts from the selected HEI. The results of this research work were both encouraging and promising amongst the interviewed experts, revealing a high level of acceptance of the general model architecture, as well as positive expectations about its usefulness in the future. The development of our maturity model is carried out by following a formal methodology specially designed to support the construction of this type of model.
- Towards an encompassing maturity model for the management of higher education institutionsPublication . Pereira, Rui Humberto; Pereira, Rui Humberto; João Vidal de Carvalho; Vidal de Carvalho, Joao; Álvaro RochaMaturity models (MM) have been adopted in organisations from different sectors of activity, as guides and references for Information Systems (IS) management. In the educational field, these models have also been used to deal with the enormous complexity and demand of IS management. This paper presents a research project that aims to develop a new MM for Higher Education Institutions (HEI) that helps them to address those problems, as a useful tool for the management of their IS (and institutions as well). Thus, the MM in this area are identified, as well as the characteristics and gaps that they present, justifying the need and the opportunity for a new and comprehensive MM. Finally, we discuss the methodology for the development of MM that will be adopted for the design of the new model (called HEIMM) and the underlying reasons for its choice. At the moment, we are developing the HEIMM.
- User Reputation on E-Commerce: Blockchain-Based ApproachesPublication . Maria José Angélico Gonçalves; Rui Humberto Pereira; Marta Alexandra Guerra Magalhães Coelho; Angélico Gonçalves, Maria José; Pereira, Rui HumbertoUser trust is a fundamental issue in e-commerce. To address this problem, recommendation systems have been widely used in different application domains including social media healthcare, e-commerce, and others. In this paper, we present a systematic review of the literature in the area of blockchain-based reputation models and we discuss the obtained results, answering the initial research questions. These findings lead us to conclude that the existing systems are based on a trusted third party (TTP) to collect and store reputation data, which does not provide transparency on users’ reputation scores. In the recent literature, on the one hand, blockchain-based reputation systems have been highlighted as possible solutions to effectively provide the necessary transparency, as well as effective identity management. On the other hand, new challenges are posed in terms of user privacy and performance, due to the specific characteristics of the blockchain. According to the literature, two major approaches have been proposed based on public and permissioned blockchains. Each approach applies adjusted models for calculating reputation scores. Despite the undoubted advantages added by a blockchain, the problem is only partially solved since there is no effective way to prevent blockchain oracles from feeding the chain with false, unfair, or biased data. In our future work, we intend to explore the two approaches discussed in the literature in order to propose a new blockchain-based model for deriving user reputation scores.