e-GRAFCET is a tool for supporting the teaching-learning process of GRAFCET ( which can be implemented using the programming language Sequential Function Chart – SFC). While this tool was initially developed by Elton Matias in the work conducting to obtain the MSc in Electrical and Computers Engineering  under the supervision of Paulo Moura Oliveira and José Boaventura da Cunha.  Elton Matias (2007), “Ferramenta Educacional para o Ensino do GRAFCET”, Dissertation, UTAD, PDF, available in: http://repositorio.utad.pt/bitstream/10348/273/1/msc_ermatias.pdf
e-GRAFCET+ can be regarded as an evolution of e-GRAFCET, namely in what concerns the user interface, adaptability to mobile devices, upgrading of accessibility issues, performed by Carlos Mendes e Luís Iria in the scope of a MSc project I in Informatics Engineering, with supervision of Paulo Moura Oliveira and Eduardo Solteiro Pires.
This tool can be complemented by using the following publication (just in Portuguese):
De Moura Oliveira P. B., Boaventura J. e Solteiro Pires E. J. (2010), "e-GRAFCET", Série Didática, N.º 412, Vila Real, UTAD, Edição Ciências Aplicadas, pp. 137, ISBN: 978-972-669-985-9.
Other publications about e-GRAFCET are the following:
Matias E., De Moura Oliveira P. B., Boaventura Cunha J., Solteiro Pires E. J. e Soares F., (2010), “E-GRAFCET: A Multimedia Educational Teaching Tool”, Controlo' 2010- 9th Portuguese Conference on Automatic Control, September, Coimbra, Portugal, 6 pag.
Leão C., Soares F., Machado M., Moura Oliveira P. B. and Boaventura Cunha J., (2011), "A support tool for teaching GRAFCET: engineering students" perceptions", in Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition, IMECE2011, November 11-17, Denver, Colorado, USA, #IMECE201164235, 6 pages (DVD).