1. MDD and BRM in a new OE backend framework Speed up softwaredevelopment, eliminate need for handwriten code Make rules editable for business-specialists and directly executable Give customer direct control over rules

2. Model driven development Model: Repository that defines part of an application Model driven: Generate code based on the repository or interpret the repository runtime

3. Modeling tools Graphic tools like: - ERD editor (data) - BPM editors (business processes) - BRM editors (business rules) Other tools - Dataset & parameter maintenance

4. Business rules management Business rules contain logic about - validations: check input data against rules - derivations: decisions in calculations - actions: trigger actions based on values Business rules - are separated out of the programmingcode - are maintainable for business-specialists - execute directly, without codegeneration, compilation or restart of an appserver

5. Benefits of brm Transparancy: rules visible and understandable for a customer in an editor Agility: rules maintained in an editor changes have immediate effect Customer has direct control Rules sent to appserverclient (mark mandatory fields, execute validations)

6. Rules extracted from ERD Referential integrity Unique indexes Mandatory fields On delete cascade or restrict Cardinality (disallow parent without child?)

7. The secret of the ruleinterpreter lOk = phBuffer:find-unique('where rowid(' + phBuffer:name + ') = to-rowid(' + quoter(cRowid) + ') and ' + cRule) no-error.

8. The secret less abstract /*--- File : ruletest.p--------*/ define temp-table customer no-undo field credit as decimal field reliability as character. define variable rule as character no-undo. define variable lok as logical no-undo. create customer. assign customer.credit = 1500 customer.reliability = 'reliable'. rule = "customer.credit > 1000 and customer.reliability <> 'unreliable'". /* rules like this reside in memory */ lok = temp-table customer :default-buffer-handle :find-unique('where rowid(customer) = buffer customer:rowid and ' + rule) no-error. display lok.