Acknowledgments

Many people deserve thanks for helping me with this book project. First of all, I want to thank Ron for starting this adventure with me and for his contributions to the book.

A big thank you to the guys on the Activiti team—Tom, Joram, and Frederik—for starting this great open source project and for all the help they gave me during the writing of the book. Special thanks to Tom and Joram for kindly contributing the forewords.

I’d also like to thank the guys at camunda (Bernd and Daniel, in particular) for their contribution to the Activiti project and for their help when I was writing about the camunda fox cycle and the Activiti CDI module.

Thanks to Balsamiq Studios and Giacomo “Peldi” Guilizzoni for providing licenses for their great Balsamiq tool. I really enjoyed creating the graphics for this book.

Thanks to Tiese Barrell and Yvo Swillens for their enthusiasm and development work on the Activiti Designer. Together we became part of the great Activiti developer community.

A special thank-you to Andy Verberne for his work on the technical proofread of the final manuscript (again).

Without the patience of my lovely Ankie, the writing of this book would not have been possible. She managed to love me, even after long working days and in spite of my sometimes grumpy communication when examples were not working as expected. Liv and Noah, thank you for all the joy you bring to my life. Thanks to my parents and parents-in-law for their love and interest in my writing.