1. Alonso, G., Casati, F., Kuno, H., Machiraju, V.: Web Services: Concepts, Architectures, and Applications. Springer, Heidelberg (2004)
2. Burnett, M.: Visual Programming. In: Webster, J.G. (ed.) Encyclopedia of Electrical and Electronics Engineering. John Wiley & Sons Inc., Chichester (1999)
3. Beyer, H., Holtzblatt, K.: Contextual Design: Defining Customer-Centered Systems. Morgan Kaufmann Publishers, San Francisco (1998)
4. Cypher, A.: Watch What I Do: Programming by Demonstration. MIT Press, Cambridge (1993)
5. Daniel, F., Casati, F., Benatallah, B., Shan, M.C.: Hosted Universal Composition: Models, Languages and Infrastructure in mashArt. In: Proceedings of ER 2009 (2009)