330 Int. J. Services Operations and Informatics, Vol. 7, No. 4, 2012 Copyright © 2012 Inderscience Enterprises Ltd. SysPEM: a SysML and SPEM based process modelling language for systems engineering Abdeslam Jakjoud* Laboratory of Modelling and Information Technologies (TIM), ENSA Marrakech, Cadi Ayyad University, Marrakech, Morocco and CNRS, LAAS, 7 avenue du colonel Roche, F-31077 Toulouse Cedex 4, France Email: jakjoud@gmail.com *Corresponding author Maria Zrikem Laboratory of Modelling and Information Technologies (TIM), ENSA Marrakech, Cadi Ayyad University, Marrakech, Morocco Email: zrikem_fr@yahoo.fr Claude Baron CNRS, LAAS, 7 avenue du colonel Roche, F-31077 Toulouse Cedex 4, France and Université de Toulouse, INSA 135 av. de Rangueil, F-31077 Toulouse Cedex 4, France Email: claude.baron@insa-toulouse.fr Abderrahmane Ayadi Laboratory of Modelling and Information Technologies (TIM), ENSA Marrakech, Cadi Ayyad University, Marrakech, Morocco Email: ayadi80@gmail.com Abstract: The evolution of industry through a competitive environment resulted in a need for optimising the manufacturing processes. Many studies focalised on this topic, especially in the case of software engineering processes, which led to the definition of a standard for development processes (SPEM) by the OMG (Object Management Group) and a race to implement it through different languages and meta-models. Even if there is a huge similarity between software engineering and systems engineering, the standard and its different implementations are still insufficient to fulfil the requirements expressed through systems engineering standards such as EIA 632. In this paper a meta-model keeps the fruitful approach of the Software Process Engineering Meta-model (SPEM) combined with some useful concepts from