Encontrados 62 documentos, a visualizar página 1 de 7
Integrating public transportation data : creation and editing of GTFS data
Braga, Mário José Matos; Santos, Maribel Yasmina; Moreira, AdrianoPresented at the 2014 World Conference on Information Systems and Technologies (WorldCIST'14). Serie - Advances in intelligent systems and computing, vol. 276 ; The current state of standardization related to representa tion and exchange of data about public transportation systems is still at its infancy, which leads to severe interoperability issues in projects that depend on the data from several diverse sou...
A brief survey on online analysis of movement data
Silva, Joaquim P.; Santos, Maribel Yasmina; Pires, João MouraThe increasing availability of mobility data and the awareness of its importance and value have been motivating many researchers to the development of models and tools for analyzing movement data. This paper presents a brief survey of significant research works about modeling, processing and visualization of data about moving objects. We identified some key research fields that will provide better features for ...
Automated traffic route identification through the shared nearest neighbour alg...
Santos, Maribel Yasmina; Silva, Joaquim P.; Pires, João Moura; Wachowicz, MónicaMany organisations need to extract useful information from huge amounts of movement data. One example is found in maritime transportation, where the automated identification of a diverse range of traffic routes is a key management issue for improving the maintenance of ports and ocean routes, and accelerating ship traffic. This paper addresses, in a first stage, the research challenge of developing an approach ...
A concurrent tuple set architecture for call level interfaces
Mortágua, Óscar; Aguiar, Rui; Santos, Maribel YasminaCall Level Interfaces (CLI) are low level API aimed at providing services to connect two main components in database applications: client applications and relational databases. Among their functionalities, the ability to manage data retrieved from databases is emphasized. The retrieved data is kept in local memory structures that may be permanently connected to the host database. Client applications, beyond the...
A Concurrent Tuple Set Architecture for Call Level Interfaces
Pereira, Óscar M.; Aguiar, Rui L.; Santos, Maribel YasminaCall Level Interfaces (CLI) are low level API aimed at providing services to connect two main components in database applications: client applications and relational databases. Among their functionalities, the ability to manage data retrieved from databases is emphasized. The retrieved data is kept in local memory structures that may be permanently connected to the host database. Client applications, beyond the...
Reusable Business Tier Architecture driven by a wide typed service
Pereira, Óscar M.; Aguiar, Rui L.; Santos, Maribel YasminaCall Level Interfaces (CLI) are difficult to use mainly in intensive database applications with many Create, Read, Update and Delete (CRUD) expressions. As low level API, they are not suited to promote the development process of business tiers as reusable components, leading to the need of writing additional source code whenever a new CRUD expression is needed. To tackle this gap, this paper proposes an archite...
Runtime values driven by access control policies : statically enforced at the l...
Pereira, Óscar M.; Aguiar, Rui L.; Santos, Maribel YasminaAccess control is a key challenge in software engineering, especially in relational database applications. Current access control techniques are based on additional security layers designed by security experts. These additional security layers do not take into account the necessary business logic leading to a separation between business tiers and access control mechanisms. Moreover, business tiers are built fro...
Runtime values driven by access control policies: statically enforced at the le...
Pereira, Óscar Mortágua; Aguiar, Rui L.; Santos, Maribel YasminaAccess control is a key challenge in software engineering, especially in relational database applications. Current access control techniques are based on additional security layers designed by security experts. These additional security layers do not take into account the necessary business logic leading to a separation between business tiers and access control mechanisms. Moreover, business tiers are built fro...
ACADA: Access Control-driven Architecture with Dynamic Adaptation
Pereira, Óscar Narciso Mortágua; Aguiar, Rui L.; Santos, Maribel YasminaProgrammers of relational database applications use software solutions (Hibernate, JDBC, LINQ, ADO.NET) to ease the development process of business tiers. These software solutions were not devised to address access control policies, much less for evolving access control policies, in spite of their unavoidable relevance. Currently, access control policies, whenever implemented, are enforced by independent compon...
ACADA : access control-driven architecture with dynamic adaptation
Pereira, Óscar M.; Aguiar, Rui L.; Santos, Maribel YasminaProgrammers of relational database applications use software solutions (Hibernate, JDBC, LINQ, ADO.NET) to ease the development process of business tiers. These software solutions were not devised to address access control policies, much less for evolving access control policies, in spite of their unavoidable relevance. Currently, access control policies, whenever implemented, are enforced by independent compon...
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