10 documents found, page 1 of 1
Improving conformance checking in process modelling: a multiperspective algorithm
Calheno, Rui Pedro Abreu; Carvalho, Paulo; Rito Lima, Solange; Henriques, Pedro Rangel; Ramos Merino, MateoBusiness process model and notation (BPMN) is a popular notation used for process modelling mainly due to its high expressiveness. However, BPMN has shortcomings when dealing with specific domains (namely Hazard Analysis and Critical Control Points systems), struggling to model activity duration, quality control points, activity effects and monitoring nature. To tackle these limitations, the business process mo...
Virtual Network Function development for NG-PON access network architecture
Araújo, Igor; Brízido, André; Rito Lima, SolangeModern networks urge agility, flexibility, and capacity to cope with the growing demand for media content and applications increasingly oriented toward data consumption. The Central Offices (CO) of telecommunication providers, being a vital aggregator of different access networks, such as optical and mobile, need to be prepared to deal with these demands. The Open Broadband - Broadband Access Abstraction (OB-BA...
Is web browsing secure? Assessment from an end-user perspective
Ramires, Moisés Manuel Borba Roriz; Machado, Carlos; Gomes, António; Carvalho, Paulo; Rito Lima, SolangeWith the ever-growing use of the Internet in our daily lives, an increase of potentially sensitive data being shared and accessed online is observed. Web apps and browsers are the main tools used by Internet users, so being able to guarantee secure browsing is a key point. In this context, this paper explores key aspects of web security and privacy in two of the most widely used browsers worldwide - Google Chro...
An IoT platform for production monitoring in the aerospace manufacturing industry
Rodrigues, Daniel; Carvalho, Paulo; Rito Lima, Solange; Lima, Emanuel; Lopes, Nuno VascoThe current evolution and availability of IoT and CPS technologies is fostering a new industrial revolution, where manufacturing technologies and processes are leveraged by intelligent automation, data exchange and ubiquitous connectivity. In this context, enhancing the control and monitoring of production lines is of particular interest as a crucial management step regarding smart manufacturing and product del...
Distance learning perspectives for Mozambique: the role of NRENs and internatio...
Munhepe Mulhanga, Marangaze; Ferreira, João Nuno; Rito Lima, SolangeFacing the difficulties of developing countries in a global system of high-quality face-to-face education, e-learning technologies and initiatives became mandatory. At a higher education level, these initiatives, involving worldwide partnerships with developed countries, represent many times the convenient way to sustain international curricula and research projects, crucial to guide these countries to the next...
Network traffic classification using ML: a comparative analysis
Ramires, Moisés; Gomes, António Sérgio Costa; Rito Lima, Solange; Carvalho, PauloTraffic Classification methods aim for the automation of processes of analysis and categorization of traffic flowing through a network according to its intrinsic nature and characteristics. In its first iterations, traffic classification took advantage of aspects such as port numbers and payload analysis for categorization, however, due to the fast-growing and changing nature of the Internet, such methods becam...
IEEE 802.1X virtual network function development for NG-PON architecture
Araújo, Igor Virgílio; Rito Lima, Solange; Brízido, André DomingosThe Open Broadband - Broadband Access Abstraction (OB-BAA) architecture aims to modernize the information technology components of broadband networks, more specif-ically the Central Offices (CO). CO stands out for being a vital aggregator of different access networks, such as optical, mobile, and cabled networks, benefiting from the paradigm of Software-Defined Networks (SDN). This paper aims to discuss the dev...
Balancing the detection of malicious traffic in SDN context
Machado, Bruno Salgado; Silva, João Marco C.; Rito Lima, Solange; Carvalho, PauloHuge efforts and resources are spent every year on prevention and recovery of cyberattacks targeting users, services and network infrastructures. Software-Defined Networking (SDN) is a technology providing advances to the field of security with the ability of programming the network, promoting high-performance solutions and efficient resource utilization at low costs, as the use of specialized hardware is avoid...
Monitoring IoT platform for the aerospace manufacturing industry
Rodrigues, Daniel Souto; Carvalho, Paulo; Rito Lima, Solange; Lima, Emanuel Ribeiro; Lopes, Nuno VascoThe maturation of IoT and CPS technologies has attracted the attention of many governments and companies worldwide due to their potential to optimize industrial processes in multiple ways. In this context, enhancing monitoring and controlling of production lines is of particular interest as a fundamental step towards smart manufacturing and product delivery. This work is focused on developing a solution for int...
Multi-perspective conformance checking applied to BPMN-E2
Calheno, Rui Pedro Abreu; Carvalho, Paulo; Rito Lima, Solange; Henriques, Pedro Rangel; Ramos-Merino, MateoOne of the most used notations for process modelling is the Business Process Model and Notation (BPMN), being the expressiveness in representing processes its strongest attribute. However, this notation has shortcomings when dealing with some specific domains (namely Hazard Analysis and Critical Control Points systems), struggling to model activity duration, quality control points, activity effects and monitori...