http://hdl.handle.net/10400.22/16 2019-09-07T21:17:02Z 2019-09-07T21:17:02Z Rodrigues, Luis Silva Amaral, Luis http://hdl.handle.net/10400.22/12649 2019-01-27T03:14:11Z 2013-06-01T00:00:00Z

Título: Key enterprise architecture value drivers: results of a Delphi Study Autor: Rodrigues, Luis Silva; Amaral, Luis Resumo: The value of Enterprise Architectures is undoubtedly an issue that is of particular importance in organizations. In the current context of strong economic constraints and the need to justify the usefulness and investments on Enterprise Architectures are increasingly demanding an assessment and demonstration of its value. However, it is recognized that assessing and demonstrating the value of Enterprise Architecture is not an easy task. In our view, the lack of a clear understanding on what is important for Enterprise Architecture value assessment, the intangible nature of some benefits and the need to quickly demonstrate the Enterprise Architecture value are some of the main reasons for this difficulty. This article presents the results of an international Delphi study involving 63 experts which main objective was to identify, systemize and prioritize the key value drivers of the Enterprise Architecture.

2013-06-01T00:00:00Z Curado Malta, Mariana Bermúdez-Sabel, Helena Baptista, Ana Alice González-Blanco, Elena http://hdl.handle.net/10400.22/12135 2018-12-01T03:14:58Z 2018-11-08T00:00:00Z

Título: Validation of a metadata application profile domain model Autor: Curado Malta, Mariana; Bermúdez-Sabel, Helena; Baptista, Ana Alice; González-Blanco, Elena Resumo: The development of Metadata Application Profiles is done in several phases. According to the Me4MAP method, one of this phases is the creation of the domain model. This paper reports the validation process of a domain model developed under the project POSTDATA - Poetry Standardization and Linked Open Data. The development of the domain model ran with two steps of construction and two of validation. The validation steps drew on the participation of specialists in European poetry and the use of real resources. On the first validation we used tables with information about resources related properties and for which the experts had to fill certain fields like, for examples, the values. The second validation used a XML framework to control the input of values in the model. The validation process allowed us to find and fix flaws in the domain model that would otherwise have been passed to the Description Set Profile and possibly would only be found after implementing the application profile in a real case.

2018-11-08T00:00:00Z Sen, Sangeeta Raza, Nishat Dutta, Animesh Curado Malta, Mariana Baptista, Ana Alice http://hdl.handle.net/10400.22/12134 2018-12-01T03:14:55Z 2018-11-08T00:00:00Z

Título: Developing a metadata application profile for the daily hire labour Autor: Sen, Sangeeta; Raza, Nishat; Dutta, Animesh; Curado Malta, Mariana; Baptista, Ana Alice Resumo: EMPOWER SSE is a Fundação para a Ciência e Tecnologia (FCT, Portugal) and Department of Science & Technology (DST, India), financed research project that aims to use the Linked Open Data Framework to empower the Social and Solidarity Economy (SSE) Agents. It is a collaborative project between India and Portugal that is focused on defining a Semantic Web framework to consolidate players of the informal sector, enabling a paradigm shift. The Indian economy can be categorized into two sectors: formal and informal. The informal sector economy differs from the formal as it is an unorganized sector and comprised of economic activities that are not covered by formal arrangements such as taxation, labor protections, minimum wage regulations, unemployment benefits, or documentation. The major economy in India depends on the skilled labor of this informal sector such e.g. daily labor, farmers, electricians, food production, and small-scale industries (Kalyani, 2016). The informal sector is mainly made of skilled people that follow their family job traditions, sometimes they are not even formally trained. This sector struggles with the lack of information, data sharing needs and interoperability issues across systems and organizational boundaries. In fact, this sector does not have any visibility to the society not having the possibility to do business as most of the agents of this sector do not reach the end of the chain. This blocks them from getting proper exposure and a better livelihood.

2018-11-08T00:00:00Z Bermúdez-Sabel, Helena Curado Malta, Mariana Gonzalez-Blanco, Elena http://hdl.handle.net/10400.22/12133 2018-12-17T03:18:29Z 2017-06-19T00:00:00Z

Título: Towards interoperability in the european poetry community: the standardization of philological concepts Autor: Bermúdez-Sabel, Helena; Curado Malta, Mariana; Gonzalez-Blanco, Elena Resumo: This paper stems from the Poetry Standardization and Linked Open Data project (POSTDATA). As its name reveals, one of the main aims of POSTDATA is to provide a means to publish European poetry (EP) data as Linked Open Data (LOD). Thus, developing a metadata application profile (MAP) as a common semantic model to be used by the EP community is a crucial step of this project. This MAP will enhance interoperability among the community members in particular, and among the EP community and other contexts in general (e.g. bibliographic records). This paper presents the methodology followed in the process of defining the concepts of the domain model of this MAP, as well as some issues that arise when labeling philological terms.

2017-06-19T00:00:00Z Pereira, Rui Humberto R. García Perez-Schofield, J. Baltasar Ortin, Francisco http://hdl.handle.net/10400.22/11971 2018-09-23T02:17:06Z 2016-06-08T00:00:00Z

Título: Modularizing application and database evolution - an aspect-oriented framework for orthogonal persistence Autor: Pereira, Rui Humberto R.; García Perez-Schofield, J. Baltasar; Ortin, Francisco Resumo: In the maintenance of software applications, database evolution is one common difficulty. In object‐oriented databases, this process comprises schema evolution and instance adaptation. Both tasks usually require significant effort from programmers and database administrators. In this paper, we propose orthogonal persistence and aspect‐oriented programming to support semi‐transparent database evolution. A default mechanism for instance evolution is defined, but the user may provide modularized solutions using the aspect‐oriented paradigm. We present our framework AOF4OOP to test the feasibility of our proposed approach. This prototype allows programmes to transparently access data in other versions of the database schema. We evaluate our framework, comparing it to related approaches using two real applications and measuring the improvement of the productivity of the programmer.

2016-06-08T00:00:00Z