Section 11 of the OMG DMN specification walks through a well-known Loan Origination example — used there mainly to illustrate DRDs, business knowledge models, and decision tables, not to demonstrate best modeling practice. Bruce Silver’s book DMN Method and Style separately analyzes two different implementations of the same case, and several vendors have published their own executable versions.
This challenge asks: using the same business logic, data model, and input values as the DMN spec’s Loan Origination example, what does your best decision model for it look like? It’s not a competition between tools — it’s an invitation to compare modeling, execution, and maintainability approaches across implementations of one well-specified, real-world-sized case.
Send your solutions to DecisionManagementCommunity@gmail.com, or open a pull request to add yours here.