WebRatio BPM: a Tool for Designing and Deploying Business Processes on the Web
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WebRatio BPM: a Tool for Designing and Deploying Business Processes on the Web

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See also:
http://www.youtube.com/watch?v=jRS1LTazxFk (demo video)

We present WebRatio BPM, an Eclipse-based tool that supports the design and deployment of business processes as Web applications. The tool applies Model Driven Engineering techniques to complex, multi-actor business processes, mixing tasks executed by humans and by machines, and produces a Web application running prototype that implements the speci ed process. Business processes are described through the standard BPMN notation, extended with information on task assignment, escalation policies, activity semantics, and typed dataflows, to enable a two-step generative approach: first the Process Model is automatically transformed into a Web Application Model in the WebML notation, which seamlessly expresses both human- and machine-executable tasks; secondly, the Application Model is fed to an automatic transformation capable of producing the running code. The tool provides various features that increase the productivity and the quality of the resulting application: one-click generation of a running protoype of the process from the BPMN model; fine-grained refinement of the resulting application; support of continuous evolution of the application design after requirements changes (both at business process and at application levels).

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  • 1. WebRatio BPM: a Tool
    for Design and Deployment
    of Business Processes on the Web
    Stefano Butti, Marco Brambilla, PieroFraternali
    Web Models Srl, Italy
    ICWE 2010, July 7th 2010, Vienna
  • 2. Agenda
    Development Process
    WebML Workflow Primitives
    Model Transformation
  • 3. Introduction
    Web applications, Web services, and BPM are the de facto standard of modern enterprise integration
    Web services enable system-to-system interaction;
    Web applications allow distributed and ubiquitous user interaction
    Business process specification languages ease the definition of the business constraints, by orchestrating service execution
    We propose a model-driven approach for multiparty business processes, based on Web Service orchestration and Web user interface design.
  • 4. Model-driven Development Process
    Manual specification of BPMN process model
    Automatic transformation of BPMN to WebML
    Possible manual refinement of WebML models
    Automatic running code generation on J2EE platform
    Virtuous development cycle
  • 5. The contribution
    Adoption of Process Model to precisely specify the workflow for a given application
    including user interaction and service orchestration
    Model transformation and code generation techniques to implement and deploy the process
  • 6. Background
    Business Process Design
    representing processes (of heterogeneous nature) in terms of related, structured activities or tasks that produce a specific service or product
    several 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 development
    Web Engineering
    use of models (and model transformations) as the key artifacts for application developments
    several proposals (e.g., UML, Hera, OOHDM, UWE, W2000, WebML)
  • 7. Background: BPMN(Business Process Model Notation)
    Description of business activities (technology- and platform- independent)
    • Activities
    • 8. FlowsConstraints(OR-XOR-AND gateways)
    • 9. Artifacts (Data Objects and data associations)
    • 10. Events
    Running example:
    for processing
    leasing requests
    (cars or houses)
  • 11. Background: WebML (Web Modeling Language)www.webml.org
    Web Modeling Language
    Specification 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)
  • 9
    Background: BPMN
    does not provide support for:
    Process data
    Formalized data flows
    does not convey information about the activity’s business logic
    BPMN language, with 2.0 crucial features:
    Activity typing (2)
    Typed attributes and parameters
    Typed and named data, consumed (3) and produced (4)
    Links with guard conditions and mapped parameters (5)
  • 14. BPMN WebMLtransformation
    Transformation rules
    finer-grained Application Model, needing few refinements by the designer
    typed activities enables reusable application models
    data dependencies are specified at a higher level
    less errors in Application Model design
    Faster development
    (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 unit
    The Next unit encapsulates the process control logic
    It 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)
  • 16. A step-by-step example (1): Extended BPMN model
    the complete BPMN example
  • 17. A step-by-step example (2): Content model
    • The metadata needed for tracking the process execution  enacting the web service orchestration
    + application-
    specific data
  • 18. A step-by-step example (3): Site- and Service- view
    Views for starting the process / orchestration (manual and service-based)
  • 19. A step-by-step example (4): Orchestration siteview
    Views for orchestrating the call to the modules (services, hypertext, or gateways)
  • 20. 16
    A step-by-step example (4): Business logics of activities
    Business logics for the XOR gateway (Car vs. House) and the Credit Score remote activity (WS invocation)
  • 21. Implementation
    Extensions to WebRatio, a commercial tool for the automatic generation of Web applications
    Creation of a extended BPMN editor for the specification of the process models
    Set of model to model and model to text transformations
    WebRatio 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 model
  • 24. Conclusions and future work
    A 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 models
  • 20
    Thank You! Questions?
    Come and see us at the booth!
    (And video on youtube)
    Stefano Butti
    Marco Brambilla
    Piero Fraternali