Milan Milanović 1 and Dragan Gašević 2 1 University of Belgrade, Serbia 2 Athabasca University, Canada Towards a Language for Rule-enhanced Business Process Modeling

Connecting process models and vocabularies Effective updates of process models Smaller chunks of business logic in processes Visualizing business logic exchange Motivation EDOC 2009

Connecting process models and vocabularies

Effective updates of process models

Smaller chunks of business logic in processes

Visualizing business logic exchange

Approach Language that combines business rules and business processes Following model-driven engineering Evaluation on message exchange patterns EDOC 2009

Language that combines business rules and business processes

Following model-driven engineering

Evaluation on message exchange patterns

Background Rule-enhanced BPMN BPMN language and metamodel R2ML language and metamodel rBPMN language and metamodel Case study Message Exchange Patterns Conclusion and future work Outline EDOC 2009

Background

Rule-enhanced BPMN

BPMN language and metamodel

R2ML language and metamodel

rBPMN language and metamodel

Case study

Message Exchange Patterns

Conclusion and future work

Background Business processes Coordinated set of activities Business goals Model: activities, participants, organizational structures, goals, policies, and vocabularies Model perspectives Control flow, data flow, interaction, … BPMN language

Business processes

Coordinated set of activities

Business goals

Model: activities, participants, organizational structures, goals, policies, and vocabularies

Model perspectives

Control flow, data flow, interaction, …

BPMN language

Background Business rules “ A statement that defines or constraints some aspect of the business. It is intended to assert business structure or to control or influence the behavior of the business.” BRG, 2009 Types [Wanger, 2005] Derivation, integrity, production, and reaction Standardization efforts: RIF, SBVR, and PRR

Business rules

“ A statement that defines or constraints some aspect of the business. It is intended to assert business structure or to control or influence the behavior of the business.”

BRG, 2009

Types [Wanger, 2005]

Derivation, integrity, production, and reaction

Standardization efforts: RIF, SBVR, and PRR

Background Business processes and business rules Fully rule-based Reaction and production rules Comprehension Execution flow at run-time No support for different rules & low-level representation Hybrid approaches Graml et al., 2007: control flow decisions, data constraints, process composition

Business processes and business rules

Fully rule-based

Reaction and production rules

Comprehension

Execution flow at run-time

No support for different rules & low-level representation

Hybrid approaches

Graml et al., 2007: control flow decisions, data constraints, process composition

Goal Systematic definition of a rule-based business modeling language

Systematic definition of a rule-based business modeling language

Rule-enhanced BPMN MDE as a solution Language engineering with metamodeling Business process and rule (meta)models Integration on the level of the metamodels Validity of expressions in models Integration of BPMN and R2ML languages EDOC 2009

MDE as a solution

Language engineering with metamodeling

Business process and rule (meta)models

Integration on the level of the metamodels

Validity of expressions in models

Integration of BPMN and R2ML languages

Modeling elements Flow object Connecting objects Pools BPMN Language EDOC 2009

Modeling elements

Flow object

Connecting objects

Pools

Business Process Model and Notation (BPMN) Specification 2.0, initial submission, http://www.omg.org/cgi-bin/doc?bmi/08-02-06 , 2008 BPMN Metamodel EDOC 2009

Business Process Model and Notation (BPMN) Specification 2.0, initial submission,

http://www.omg.org/cgi-bin/doc?bmi/08-02-06 , 2008

REWERSE I1 Rule Markup Language Four rule types Organization R2ML MOF-based metamodel for rules R2ML XML Schema UML-based Rule Modeling Language (URML) Transformations Rule Modeling Language Towards a Language for Rule-enhanced Business Process Modeling EDOC 2009

REWERSE I1 Rule Markup Language

Four rule types

Organization

R2ML MOF-based metamodel for rules

R2ML XML Schema

UML-based Rule Modeling Language (URML)

Transformations

R2ML Metamodel EDOC 2009

URML Details Extension of UML for rule modeling Vocabularies by using UML class models Rules are defined on top of such models EDOC 2009

Extension of UML for rule modeling

Vocabularies by using UML class models

Rules are defined on top of such models

EDOC 2009 On a patient information request, if the user is registered and provided valid credentials, retrieve the requested information and notify the user. Otherwise, send a fault message.

rBPMN Metamodel EDOC 2009

rBPMN metamodel EDOC 2009

Activity extensions: Tasks and Subprocesses rBPMN metamodel EDOC 2009

Activity extensions: Tasks and Subprocesses

rBPMN data model: Correlation information rBPMN Metamodel EDOC 2009

rBPMN data model: Correlation information

Service-oriented health information system Message Exchange Patterns Types and order of messages Inbound patterns Initiated by service requestors Outbound patterns Initiated by services themselves MEPs modeled by reaction rules Case Study EDOC 2009

Service-oriented health information system

Message Exchange Patterns

Types and order of messages

Inbound patterns

Initiated by service requestors

Outbound patterns

Initiated by services themselves

MEPs modeled by reaction rules

In-Out MEP (with fault replaces message) Message Exchange Patterns EDOC 2009

In-Out MEP (with fault replaces message)

Out-In Pattern (with fault) Message Exchange Patterns EDOC 2009

Out-In Pattern (with fault)

Related Work

Conclusion Integration of rules and processes Supported patterns by Graml et al. Visualization for rule interchange Verification of shared rules EDOC 2009

Integration of rules and processes

Supported patterns by Graml et al.

Visualization for rule interchange

Verification of shared rules

Future Work Workflow and service-interaction patterns Mapping onto and extending BPEL Structured natural language for rules Policies with business processes EDOC 2009

Workflow and service-interaction patterns

Mapping onto and extending BPEL

Structured natural language for rules

Policies with business processes

Thank You !