Hi Mark, First of all, thanks for develop the examples documentation, It help me to understand many thigs. I have some coments, here they are: Example 10.7. Salience State Example: Rule "A to B" Figure 10.2. State Example Agenda View The figure shows StateExapleUsingAgendaGroup.drl but in Example 10.4. Salience State Example Execution are specified that the example being shown is the one using salience. I think this can confuse the reader. 10.1.5.1. Starting anew -> (a new) Note that we are "joining" the ticket fact with the customer fact. Its not really needed in this case, as we don't do anything (yet) with the customer fact. If you look in ghe -> (the) TroubleTicketExample.java, you will also see that the facts are being inserted into the engine - note that we asset -> (assert) BOTH Customer and Ticket object 10.1.9.5. Sudoku Solving Rules (solverSudoku.drl) Rule #1 is basically a "book-keeping" rule. Several of the other rules insert()... activations for the rule move to the top of the agenda and a -> (are) fired. Regards Xavier On 9/15/07, Mark Proctor <mproctor(a)codehaus.org&gt; wrote: