Essien, Joe (2015) Model driven validation approach for enterprise architecture and motivation extensions. Doctoral thesis, University of West London.

Oussena, Samia, Essien, Joe and Komisarczuk, Peter (2014) Formalization of validation extension metamodel for enterprise architecture frameworks. In: 16th International Conference on Enterprise Information Systems 2014, 27-30 Apr 2014, Lisbon, Portugal.

Oussena, Samia and Essien, Joe (2013) Validating enterprise architecture using ontology-based approach: a case study of student internship programme. In: 3rd International Symposium ISKO-Maghreb, 08-09 Nov 2013, Marrakech, Morocco.

Essien, Joe and Oussena, Samia (2013) Enterprise architecture models for description of integrated components for validation - a case study of a student internship programme. In: 15th International Conference on Enterprise Information Systems 2013, 4-7 July 2013, Angers, France.

Essien, Joe and Oussena, Samia (2013) Goal oriented model driven EA validation approach: a case study of a student internship programme. In: 17th IEEE International Enterprise Distributed Object Computing Conference(EDOC 2013), 9-13 September 2013, Vancouver, Canada.

Kim, Hyeonsook, Oussena, Samia, Essien, Joe and Komisarczuk, Peter (2013) Towards event driven enterprise architecture. In: 15th International Conference on Enterprise Information Systems 2013, 4-7 July 2013, Angers, France.