Are Terrorist Organizations Based on Identical Patterns, or They Are Single Entities With Their Own Characteristics?
The aim of this study is to assess if the functioning of Al-Qaeda, Hamas and the Islamic State (ISIS) may present identical or similar patterns by using a comparative framework which considers three main levels of analysis: an ideological, a structural , and an operative level of analysis. Therefore, this work is organized in three main parts. The first part compares these three terrorist groups according to their ideological orientation; the second part looks at the organizational structures; finally, the third part makes a statistical comparison of the operational capabilities.