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BPMN2 and jBPM5 Kris Verlaenen jBPM5 Lead

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Overview <ul><li>Rules and Processes

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jBPM5

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Guvnor

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Flexible and adaptive processes </li></ul>

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What is a business process? <ul><li>State

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Sequence

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Long-lived </li></ul><ul><li>Persistence

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Generic

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More stable </li></ul>A business process is a process that describes the order in which a series of steps need to be executed, using a flow chart.

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Combining processes and rules <ul><li>Integration </li><ul><li>From loose coupling (decision services)

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To advanced integration (process rules) </li></ul><li>Unification </li><ul><li>Rules and processes are different types of business knowledge assets

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Tooling (IDE, repository, management) </li></ul></ul>

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RuleFlow

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<ul><li>RuleFlow : describing the order in which rule groups should be evaluated

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Process Rules : Evaluate constraints

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RuleSet : Evaluating a set of rules in your process (= local decision service)

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Assignment rules

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Describing exceptional situations using rules

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Modularizing concerns using rules

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Using rules to dynamically alter the behavior of the process </li></ul>Rules and Process Integration

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Model Deploy Execute Monitor Analyze Life Cycle Mining Analysis Optimization Simulation Testing Design Monitoring Reporting Execution Integration Deployment Management Audit Human Interaction Collaboration

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Vision jBPM as the process engine in a knowledge-oriented platform for developers and business users

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Key Characteristics of jBPM5 <ul><li>Open-source business process management project offering: </li></ul><ul><ul><li>generic process engine supporting native BPMN 2.0 execution

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targeting developers and business users

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collaboration, management and monitoring using web-based consoles

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powerful rules and event integration </li></ul></ul>

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From Workflow to BPM <ul><li>Core engine is a workflow engine in pure Java </li></ul><ul><ul><li>state transitions

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lightweight

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embeddable

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generic, extensible </li></ul></ul>Core Engine

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Core Engine Knowledge Base Stateful Knowledge Session Process Definition Process Instance

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BPMN 2.0 Example < definitions ... > < process id=&quot;com.sample.bpmn.hello&quot; name=&quot;Hello World&quot; > < startEvent id=&quot;_1&quot; name=&quot;StartProcess&quot; /> < sequenceFlow sourceRef=&quot;_1&quot; targetRef=&quot;_2&quot; /> < scriptTask id=&quot;_2&quot; name=&quot;Hello&quot; > < script >System.out.println(&quot;Hello World&quot;);</ script > </ scriptTask > < sequenceFlow sourceRef=&quot;_2&quot; targetRef=&quot;_3&quot; /> < endEvent id=&quot;_3&quot; name=&quot;EndProcess&quot; /> </ process > </ definitions > < definitions ... > < process id=&quot;com.sample.bpmn.hello&quot; name=&quot;Hello World&quot; > < startEvent id=&quot;_1&quot; name=&quot;StartProcess&quot; /> < sequenceFlow sourceRef=&quot;_1&quot; targetRef=&quot;_2&quot; /> < scriptTask id=&quot;_2&quot; name=&quot;Hello&quot; > < script >System.out.println(&quot;Hello World&quot;);</ script > </ scriptTask > < sequenceFlow sourceRef=&quot;_2&quot; targetRef=&quot;_3&quot; /> < endEvent id=&quot;_3&quot; name=&quot;EndProcess&quot; /> </ process > </ definitions >

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Java Interface ProcessRuntime interface <ul><li>startProcess(processId)

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startProcess(processId, parameters)

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signalEvent(type, event)

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signalEvent(type, event, instanceId)

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abortProcessInstance(instanceId)

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getProcessInstance(instanceId)

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… </li></ul>

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Java Example // (1) Create knowledge base and add process definition KnowledgeBuilder kbuilder = ... kbuilder.add( ..., &quot;sample.bpmn&quot;, ResourceType.BPMN2); KnowledgeBase kbase = kbuilder.newKnowledgeBase(); // (2) Create new stateful knowledge session StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(); // (3) Start a new process instance ksession.startProcess(“com.sample.bpmn.hello”);

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Domain-specific Services <ul><li>Extend palette with domain-specific, declarative service nodes </li></ul><ul><ul><li>define input / output parameters

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runtime binding </li></ul></ul>

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Guvnor <ul><li>Guvnor as knowledge repository </li></ul><ul><ul><li>BPMN2 processes

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Task and process forms

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Model </li></ul></ul><ul><li>Web-based process editor (Oryx)

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Build, deploy, test, manage and collaboration features </li></ul>

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Other Features <ul><li>Persistence / transactions </li><ul><li>Command-based

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JPA / JTA

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Pluggable </li></ul><li>Human Task Service

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Eclipse plugin

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Web-based management console

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Installer </li></ul>

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Flexible and Adaptive Processes Traditional workflow systems have problems with change, complexity, flexibility, data-intensive applications, etc. <ul><li>Adaptive Case Management (ACM)

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Unstructured, non-lineair or flexible processes

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Event-driven BPM (edBPM) </li></ul>

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Processes + Rules + Events

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Flexible processes

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jBPM5: What, where? <ul><li>jBPM 5.0 (Feb 7th, 2011) </li></ul><ul><li>jBPM home page

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Source http://github.com/krisv/jbpm

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Blog http://kverlaen.blogspot.com/

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#jbpm on irc.codehaus.org

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[email_address]

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jBPM user forum </li></ul>

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BPMN2 and jBPM5 Kris Verlaenen jBPM5 Lead