![Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering](https://www.researchgate.net/profile/Dimitrios-Kallergis/publication/326154885/figure/fig1/AS:1022922441371648@1620895123120/Four-domain-proposed-SeMMA_Q320.jpg)
Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering
![Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering](https://www.researchgate.net/profile/Dimitrios-Kallergis/publication/326154885/figure/fig3/AS:1022922441379840@1620895123199/Entities-interactions-for-policy-enforcement-in-the-service-domain_Q320.jpg)
Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering
![Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering](https://www.researchgate.net/profile/Dimitrios-Kallergis/publication/326154885/figure/fig2/AS:1022922441375744@1620895123171/Policy-enforcement-in-the-service-domain_Q320.jpg)
Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering
![Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering Dimitrios KALLERGIS | Lecturer | Lecturer | University of West Attica, Athens | TEIATH | Department of Informatics and Computer Engineering](https://www.researchgate.net/profile/Dimitrios-Kallergis/publication/326154885/figure/fig5/AS:1022922441383939@1620895123272/Intercept-a-service-request_Q320.jpg)