Ubirajara LUCENA skilled ergonomist & designer

Brazilian portuguese English French

Publications

GC'12 Workshop: Quality of Experience for Multimedia Communications

Verdot, Vincent; Gonguet, Arnaud; Bouché, Nicolas; Lucena, Ubirajara; Intention- Aware Multimedia Modeling for Optimized Quality of Experience; GC'12 Workshop: Quality of Experience for Multimedia Communications - IEEE Workshop on Quality of Experience for Multimedia Communications; Anaheim, California, USA, 2012

Through the empirical examples of radio and movies production, we show that the form of a multimedia object must serve its content, i.e. the author(s)' intentionality. We propose an intention-aware multimedia model which explicitly distinguishes form and content to grant robustness and flexibility to multimedia communications, persisting the producer(s)' intention while adapting it to the consumer(s)' context.

INTERACT'07 - 11th International Conference on Human-Computer Interaction

Levi, F. ; MELO, P. ; Lucena, U.; Arcoverde, J.; Belleza, C. Evangelizing usability to 700 people: strategies for building a user-centered organizational culture. Proceedings of the 11th IFIP TC 13 international conference on Human-computer interaction - Volume Part II.

For the last three years, CESAR's user experience team has endeavored to build a usercentered organizational culture. In this report, we present some succeeding empirical strategies for evangelizing usability, in the hope that professionals in similar contexts might benefit from them.

4th Latin American Web Congress (LA-WEB'2006), 2006

Levi, F. ; MELO, P. ; Lucena, U. Accessibility implementation planning for large governmental websites: a case study. Cholula. Proceedings of the 4th Latin American Web Congress (LA-WEB'2006). Washington, DC : IEEE Computer Society, 2006. p. 113-118.

Since the end of 2004, when the law decree about accessibility for Brazilian governmental websites came into force, the federal agencies have been struggling to conform to the norms of current law. Discussions about both evaluation and fixing of pages with access barriers are taking place on the mainstream, but little attention has been paid to a feature commonly found on governmental websites: the large amount of information, compared to commercial websites. This work proposes an accessibility planning for websites with both large number of pages and intense daily accesses, carried out through a work model which we call Accessibility Factory. In addition we present the accessibility planning directions for Brazilian Central Bank website as a case study.

SET 2005 - Radio and TV Communication Technology Congress - São Paulo - Brazil

JUCÁ, Paulyne Matthews; LUCENA, Ubirajara ; FERRAZ, Carlos, Desenvolvendo Aplicações de Televisão Digital. - São Paulo, september 2005.

This article describes the achievements of the Recife Centre for Advanced Studies and Systems (C.E.S.A.R.) in the development digital television applications, started in April 2004, period during which was developed a solid foundation of theoretical knowledge about digital tv which now start to be applied in projects for the Federal Government.

TVDI'2005 - Digital TV Forum

JUCÁ, Paulyne Matthews; LUCENA, Ubirajara. Experiências no Desenvolvimento de TV Digital - Minas Gerais, may 2005.

This article describes the achievements of the Recife Centre for Advanced Studies and Systems (C.E.S.A.R.) in the development digital television applications, started in April 2004.

Monography - UFPE / 2002

An analysis of the usability of keyboard shortcuts used in professional computer drawing tools

Research Directors:
Stephania Padovani, Ph.d in Cognitive Ergonomics - Loughborough University
Flávia Peres - Dr. in Cognitive Psychology - UFPE