WebRatio BPM: a Tool for Designing and Deploying Business Processes on the Web
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The document presents WebRatio BPM, a model-driven approach for designing and deploying business processes through web services and applications, emphasizing BPMN and WebML. It outlines a detailed methodology for transforming BPMN models into WebML for more efficient application development, including code generation and service orchestration. Additionally, it discusses the background, requirements, and future directions for integrating business process modeling with web application design.
WebRatio BPM: a Tool for Designing and Deploying Business Processes on the Web
- 1. WebRatio BPM: a Tool for Design and Deployment of Business Processes on the WebStefano Butti, Marco Brambilla, PieroFraternaliWeb Models Srl, ItalyICWE 2010, July 7th 2010, Vienna
- 2. AgendaIntroductionDevelopment ProcessWebML Workflow PrimitivesModel TransformationConclusions
- 3. IntroductionWeb applications, Web services, and BPM are the de facto standard of modern enterprise integrationWeb services enable system-to-system interaction;Web applications allow distributed and ubiquitous user interactionBusiness process specification languages ease the definition of the business constraints, by orchestrating service executionWe propose a model-driven approach for multiparty business processes, based on Web Service orchestration and Web user interface design. BPMNWebML3
- 4. Model-driven Development ProcessManual specification of BPMN process model Automatic transformation of BPMN to WebMLPossible manual refinement of WebML modelsAutomatic running code generation on J2EE platformVirtuous development cycle4
- 5. The contributionAdoption of Process Model to precisely specify the workflow for a given application including user interaction and service orchestrationModel transformation and code generation techniques to implement and deploy the process5
- 6. BackgroundBusiness Process Designrepresenting processes (of heterogeneous nature) in terms of related, structured activities or tasks that produce a specific service or productseveral proposals for visual modeling languages (e.g., UML, YAML, BPMN) Model Driven Architectures abstraction (separation of platform independent and platform dependent concerns) and models in Web application design and developmentWeb Engineeringuse of models (and model transformations) as the key artifacts for application developmentsseveral proposals (e.g., UML, Hera, OOHDM, UWE, W2000, WebML)6
- 7. Background: BPMN(Business Process Model Notation)7Description of business activities (technology- and platform- independent) Activities
- 9. Artifacts (Data Objects and data associations)
- 10. EventsRunning example:Banking applicationfor processingleasing requests (cars or houses)
- 11. Background: WebML (Web Modeling Language)www.webml.org8Web Modeling LanguageSpecification of interactive, integrated Web applications through orthogonal models. Domain Models (ER or UML class diagrams for defining “the content”)
- 12. Navigation Models ( content publication and manipulation, page computation, hypertextual links, side effects)
- 13. Service definition and composition Models ( Web service invocation and publication, XML management)9Background: BPMNBPMN does not provide support for:Process dataFormalized data flowsdoes not convey information about the activity’s business logicBPMN language, with 2.0 crucial features:Activity typing (2)Typed attributes and parametersTyped and named data, consumed (3) and produced (4)Links with guard conditions and mapped parameters (5)
- 14. BPMN WebMLtransformationTransformation rulesfiner-grained Application Model, needing few refinements by the designertyped activities enables reusable application modelsdata dependencies are specified at a higher levelless errors in Application Model designFaster development10(1) One control siteview per pool: Human interaction(2) One control serviceview per pool: WS Choreography(3) One site view per lane: user navigation(4) One site view per lane: business logics of activities and gateways(4) One site view per lane: business logics of activities and gateways(5) Orchestration view: a controller component invokes the activities
- 15. The NEXT unitThe Next unit encapsulates the process control logicIt exploits the information stored in the Process Metadata It calculates the current process status and the enabled state transitions It needs the following input parameters: caseID(the currently executed process instance ID)activityInstanceID(the current activity instance ID)conditionParameters(the values to evaluate the conditions)11NEXT
- 16. A step-by-step example (1): Extended BPMN modelthe complete BPMN example 12
- 17. A step-by-step example (2): Content modelThe metadata needed for tracking the process execution enacting the web service orchestration+ application- specific data13
- 18. A step-by-step example (3): Site- and Service- view14Views for starting the process / orchestration (manual and service-based)
- 19. A step-by-step example (4): Orchestration siteview15Views for orchestrating the call to the modules (services, hypertext, or gateways)
- 20. 16A step-by-step example (4): Business logics of activitiesBusiness logics for the XOR gateway (Car vs. House) and the Credit Score remote activity (WS invocation)
- 21. ImplementationExtensions to WebRatio, a commercial tool for the automatic generation of Web applicationsCreation of a extended BPMN editor for the specification of the process modelsSet of model to model and model to text transformations17WebRatio BPMN Editor
- 22. Additional investigations Backward engineering (2): modularization of hypertext pieces and reuse as activity types through catalogues
- 23. Reverse Engineering (3): decomposition of the web application and extraction of the BP model18
- 24. Conclusions and future work19A modeling framework a model-driven design process for service orchestrations
- 25. Helps the initial design of the process
- 26. Helps for its evolution when requirements change
- 27. the extensibility of the model, through the concept of activity types
- 28. the availability of well-established code generation technology
- 29. great improvement in productivity Ongoing and future work industrial implementation
- 30. reverse engineering of BP models20Thank You! Questions?Come and see us at the booth!(And video on youtube)Contact:Stefano ButtiMarco BrambillaPiero FraternaliStefano.butti@webratio.comMarco.brambilla@webratio.comPiero.fraternali@webratio.comwww.webratio.com