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Flexible business processes using jBPM5 Kris Verlaenen jBPM5 Lead Engineer

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Key Characteristics of BPM <ul><li>Visibility

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Monitoring

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Higher-level </li></ul><ul><li>Continuous improvement

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Speed of development

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Increased agility </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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BPM Approaches System / EAI Oriented Human Centric Model Oriented Decision Centric Event Driven Content Driven Social Case Management

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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 BPMN 2.0 XML Persistence Trans- actions Events Integration Core Engine

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Ready for the future? Traditional 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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What is flexibility? “ The quality of being adaptable or variable”

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What is business process flexibility? “ The ability to implement change or variability in a business process, due to environmental changes”

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Flexibility = Variability + Change

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Process Variability <ul><li>By design

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By deviation

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By underspecification

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By change </li></ul>[2008] Towards a Taxonomy of Process Flexibility M.H. Schonenberg, R.S. Mans, N.C. Russell, N.A. Mulyar and W.M.P. van der Aalst

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Process Change <ul><li>Subject of change </li><ul><li>What is changing? </li></ul><li>Abstraction level of change </li><ul><li>Process definition

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Process instance </li></ul><li>Extend of change </li><ul><li>Incremental

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Revolutionary </li></ul></ul>

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Process Change <ul><li>Duration of change </li><ul><li>Temporary

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Permanent </li></ul><li>Swiftness of change </li><ul><li>Deferred

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Immediate </li></ul><li>Anticipation of change </li><ul><li>Planned

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Ad hoc </li></ul></ul>[2006] Taxonomy of flexibility in business processes Gil Regev, Pnina Soffer, Rainer Schmidt

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Flexibility in jBPM5 <ul><li>Dynamically load process definitions

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Existing process instances? </li><ul><li>Proceed

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Process instance migration </li></ul><li>Ad-hoc (sub-)processes </li><ul><li>Non-lineair process fragments

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Dynamic adaptations </li></ul></ul>

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Example: Clinical DSS

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Processes + Rules + Events

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

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? Business Problem Semantics Processes Events Rules Processes Rules Events Semantics

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Combining Processes, Rules and Events <ul><li>Integration </li><ul><li>From loose coupling

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

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

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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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Decision Service <ul><li>Different life cycle (agility)

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Larger scope (reusable)

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Higher-level

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Loosely-coupled </li></ul>

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

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Process Rules : Data-driven constraints

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Triggers : Rules / events start / signal process

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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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Exceptional Control Flow 90% 5% 3% 2%

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Exceptional Control Flow 90% Rule1 When ... Then ... Rule2 When ... Then ... Rule3 When ... Then ... 5% 3% 2%

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Example: Build Management Hudson Execution and Scheduling Architecture

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Example: Build Management Hudson Execution and Scheduling Architecture

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Continuum Data-driven Lifetime Stability Granularity Change Dynamic Complexity Declarative User-focused

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Processes + Rules + Events

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jBPM5: What, where? <ul><li>jBPM home page

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

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Hudson http://hudson.jboss.org/hudson/job/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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Flexible business processes using jBPM5 Kris Verlaenen jBPM5 Lead Engineer