Marielba Zacarias

Universidade do Algarve - FCT/DEEI· Gambelas, Faro 8000-139 · +351 (289) 800-900 · marielba @ ualg dot pt

I am a Computer Engineer with a MSc degree in Systems Engineering, and a PhD in Informatics and Computers Engineering. I have dedicated my whole career to the field of Information Systems. After 20 years working as a software developer and project manager in Venezuela, I moved to Portugal in 2001, where I am fully dedicated to teaching and research activities at the Algarve University, and the Research Center for Spatial and Organizational Dynamics (CIEO).

Professional Experience

Assistant Professor

Universidade do Algarve (Faro, Portugal)

Responsible for teaching, research and consulting activities at the Electronics and Informatics Engineering Department (DEEI), Faculty of Science and Technology (FCT). Through a collaboration with the Economics and Management Faculty, responsible for teaching at the Entrepreneurship and Innovation Economy master course. Author of several scientific publications, and member of several program committe of international scientific events. Consultancy activities include process discovery and modelling and requirements elicitation and specification projects in local IT companies.

2008 - Present


Universidade do Algarve (Faro, Portugal)

Responsible for teaching and research activities at the Department of Electronic Engineering and Informatics (DEEI), Faculty of Science and Technology (FCT).

2001 - 2008

Software Project Manager

DELFOS (Valencia, Venezuela)

Responsible for software project development based on Oracle technology and tools, with particular focus on building strong trust relationship with clientes, requirement elicitation and specification, database conceptual design, and developing user training courses.

1997 - 2001


Universidad Simón Bolívar (Caracas, Venezuela)

Responsible for giving assistance in practical classes on data-base management.

1996 - 1997

IT Consultant

Self-Employed (Maracay, Venezuela

Responsible for diverse IT activities including elicitation and specification of hardware and software requirements and installation and configuration of local area networks for small construction companies.

1993 - 1996

Informatics Specialist

Centro Nacional de Investigaciones Agropecuarias (CENIAP - Maracay, Venezuela)

Responsible for the analysis, design and development of several information systems related to agricultural research. Among them, development of a highly successful Expert System of liming recommendations for acid soils in Venezuela, which resulted in co-authoring the book "Sistema Experto para recomendaciones de cal en los suelos de Venezuela”

1983 - 1993


Instituto Superior Técnico (Lisbon, Portugal)

Doctor of Phylosophy
Informatics and Computer Engineering - Information Systems
2003 - 2008

Universidade Simón Bolívar (Caracas, Venezuela)

Master of Science
Information Systems
1991 - 1996

Universidade Simón Bolívar (Caracas, Venezuela)

Computers and Software
1977 - 1982

Research Interests

  • Enterprise Architectures
  • Enterprise Models & Ontologies
  • Business Process Discovery & Modeling
  • Organizational & Interaction Design


Orcid & Google Scholar publication list


  • Human-Computer Interaction
  • Systems Analysis and Modeling
  • Enterprise Information Systems
  • Information & Knowledge Management
  • Software Engineering
  • Software Engineering Laboratory
  • Technologies applied to Science Education
  • Technologies applied to Communication Design
  • Information Systems
  • Database Systems
  • Software Engineering
  • Systems Programming
  • Imperative Programming
  • Computer Architecture


Programming Languages & Tools
Modelling Notations & Tools
  • BPMN with Bizagi
  • UML with Visual Paradigm and Modelio
  • OWL with Protegé