Agile Development of Critical Software – Can It be Justified? Topics: "3A" (Agile, Aspect-oriented and Agent-oriented) Software Engineering; "3A" (Agile, Aspect-oriented and Agent-oriented) Software Engineering; Software Process Improvement; Software Quality Management In Proceedings of the 7th International Conference on Evaluation of Novel Approaches to Software Engineering ENASE - Volume 1, 134-139, 2012 , Wrocław, Poland