UML (Computer science) -- Evaluation : Usability evaluation of graphical modeling languages : an empirical research study / Christian Schalles ; foreword by Michael Rebstock and John Creagh
Here are entered works on the concept of the Islamic community of believers as a whole, which transcends ethnic or political boundaries, and sometimes includes the idea of an Islamic state ruled by Islamic law
Ummah (Islam) -- Congresses : The Community of Believers : Christian and Muslim perspectives : a record of the Twelfth Building Bridges Seminar hosted by Georgetown University at the School of Foreign Service in Qatar, May 27-29, 2013 / Lucinda Mosher and David Marshall, Editors