L. Iñesta, N. Aquino, und J. Sánchez. Advances in Engineering Software, 40 (12):
1287 - 1296(2009)Designing, modelling and implementing interactive systems.
K. Sousa, H. Mendonça, und J. Vanderdonckt. Task Models and Diagrams for User Interface Design, Volume 4849 von Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2007)
S. Lohmann, J. Kaltz, und J. Ziegler. Models in Software Engineering, Volume 4364 von Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2007)