Hey , I want to develop an application to manage incidents with activiti bpm , and i just didn't understand wich activiti I should use (engine, explorer,designer) , what is the difference between them ? and how to install it ? and also what are the steps that I should take to develop the application? Thank you
You use designer to develop your processes and deploy them. For deployment you can use explorer but engine is what is used to run your applications at runtime.
Go through this book: Activiti 5.x Business Process Management by Zakir Laliwala and Irshad Mansuri. Thats a good book to get you started. Once you are upto speed, you can go through a more professional book Activiti in Action By Tijs Rademakers.