This example is presented in the article Decision Modelling in Timed Dynamic Condition Response Graphs with Data presented at the DECH2 workshop associated with the BPM 2021 conference in Rome.
A classical way to express business rules is in a procedural manner, e.g. if … then … else. However, business people find it hard to express business rules in a procedural manner. The decision model and notation (DMN) notation is a declarative notation which is easier for business people to use and understand. DMN tables look like simple small Excel sheets but can be understood by a computer.
In the process, and employee can submit an expense report containing the type of expense (either cash payout or payment of bill) and the amount. Expenses below 200 Euro can be approved no matter the type. Payments of bills above 200, or cash payouts between 200 and 5000 can be payed out if a manager approves. Cash payouts above 5000 Euro are rejected no matter what.
An example DMN table is illustrated below:
Please read more about DMN.