Program committee memberships:
18th Americas Conference on Information Systems (AMCIS 2012)-Spanish & Portuguese (Latin America) Track
Int. Workshop on Risk and Trust in Safety Critical Systems (RTW 2012)
–Information Systems Brazilian Symposium (SBSI 2009, 2010, 2011) & general chair in SBSI 2012
–10th Int. Conference on Autonomous Agents and Multi-agent Systems (AAMAS 2011)
Int. Workshop on Uncertainty Reasoning for the Semantic Web (URSW 2011, 2012)
VIII Int. Conference on Cyber Crime Investigation (ICCyber 2011)
–The Int. Federation for Information Processing (IFIP) International Conference on Research and Practical Issues of Enterprise Information Systems (CONFENIS 2010)
–Int. Information and Telecommunication Technologies Symposium (I2TS 2007, 2008, 2009, 2010)
–3rd Workshop on Ontologies and Metamodels in Software and Data Engineering (WOMSDE 2008)
–Brazilian Symposium on Bioinformatics (BSB 2008)
–Workshop on Information Systems Thesis and Dissertations (WTDSI 2007, 2008)

Editorial Board Memberships:
–The International Journal of Forensic Computer Science(IJOFCS), 2006 - ongoing (http://www.ijofcs.org/people.html)
–Revista Eletrônica de Sistemas de Informação (RESI), 2009 - ongoing (http://revistas.facecla.com.br/index.php/reinfo/ about/displayMembership/3)

Institutional affiliations:
–Association for Computing Machinery (ACM), professional membership number 1966790
–Sociedade Brasileira de Computação (SBC) or the Brazilian Computing Society, association number 12758, since 29/05/03

External Examinership:
Universidade Federal do Rio Grande do Sul (UFRGS), PhD thesis, 2010
–Department of Electrical Engineering, University of Brasília, PhD proposal, 2012

Vice coordinator of the Information System special committee, 2010/2011, Brazilian Computing Society (SBC).

Talks:
-
Non-coding RNA annotation based on multiagent system, Leipzig Universität/Leipzig/Germany, 14/12/12 - slides in English
-The MASE Project: Research & Development opportunity for colaboration, Leeds University/Leeds/England, 15/11/12 - slides in English
-The MASE Project: Overview & Future Plans, Brandenburgische Technische Universität/Cottbus/Germany, 20/09/12 - slides in English
-Sistema Multiagente com Teoria dos Jogos: Abordagem Promissora, CIEF/CERME/UnB, 19/06/12 - slides in Portuguese
-Primeiro Workshop Petrobrás-Centro de Referência Inversão Acústica Processamento de Sinais Submarinos, UnB, 22/06/12 - slides in Portuguese