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Business Process Management (BPM) & the Eclipse Ecosystem

Business Process Management (BPM) & the Eclipse Ecosystem

Talk given at the Eclipse DemoCamp Kepler 2013 in Vienna.

Rafael Cordones

June 28, 2013
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  1. Eclipse DemoCamp Kepler 2013 - Vienna, June 28th 2013 Slide 1 / 234
    Business Process Management (BPM) &
    the Eclipse Ecosystem
    [email protected]
    rafael.cordones.me
    @rafacm
    Don’t Panic!
    Just testing
    your attention!

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  2. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    rafael.cordones.me
    • Freelancer Java Ecosystem Software Developer
    • Background in enterprise software development
    for small organizations:
    • Most important feature of a product is the shipping date
    • Second most important feature is maintainability
    • Third most important feature is ...
    • Disclaimer: I am a contributor to the camunda BPM platform.
    • Yes, I grew up in the 80‘s and 90’s and I like music a lot! ;-)
    2

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  3. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    What’s ahead?
    1. What is BPM?
    2. Why should I care as a developer?
    3. Approaches to BPM implementation
    4. Demo(s)
    3

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  4. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Business Process Management
    To all developers in the room...
    Close your eyes and take a
    moment to think of what
    comes to your mind
    about... BPM?
    Source: http://en.wikipedia.org/wiki/Sigmund_Freud
    4

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  5. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Business Process Management
    What some developers think?
    Source: http://www.youtube.com/watch?v=otCpCn0l4Wo
    5
    * My own little homage to “Winsongs 95”: http://www.youtube.com/watch?v=rjDSY8LczFw
    “U Can’t Touch This” by MC Hammer
    http://www.youtube.com/watch?v=otCpCn0l4Wo
    U can’t touch this!
    My, my, my... BPM is so hard
    ‘Cause it’s built on a load of crap
    What is this model here?!
    Wanna cover my eyes and plug my ears!*

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  6. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    One Reason Why? The Hype Cycle
    Source: http://en.wikipedia.org/wiki/Hype_cycle
    6

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  7. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    What is BPM?
    7
    Software
    developers
    A tool!
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    ...
    One tool, two purposes:
    human (communication) and technical (communication)

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  8. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    What’s ahead?
    1. What is BPM?
    2. Why should I care as a developer?
    3. Approaches to BPM implementation
    4. Demo(s)
    8

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  9. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Different People, Different
    Languages
    9
    Customers
    Software developers
    Business
    analysts
    System
    administrators
    Product
    owners
    Sales
    Support

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  10. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Different People, Different
    Languages
    10
    Customer
    Software
    developers Business
    analysts
    System
    administrators
    Support
    Sales
    Product
    owners

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  11. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Business Process Model & Notation 2.0
    Example: announcing a job position
    11
    Source: “Praxishandbuch BPMN 2.0” http://www.bpm- uide.de/2012/02/16/praxishandbuch-bpmn-2-0-in-der-3-aufla e/

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  12. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Activities Conversations
    Events
    Gateways
    Conversation Diagram
    None: Untyped events,
    indicate start point, state
    changes or final states.
    Message: Receiving and
    sending messages.
    Timer: Cyclic timer events,
    points in time, time spans or
    timeouts.
    Error: Catching or throwing
    named errors.
    Cancel: Reacting to cancelled
    transactions or triggering
    cancellation.
    Compensation: Handling or
    triggering compensation.
    Conditional: Reacting to
    changed business conditions
    or integrating business rules.
    Signal: Signalling across differ-
    ent processes. A signal thrown
    can be caught multiple times.
    Multiple: Catching one out of
    a set of events. Throwing all
    events defined
    Link: Off-page connectors.
    Two corresponding link events
    equal a sequence flow.
    Terminate: Triggering the
    immediate termination of a
    process.
    Escalation: Escalating to
    an higher level of
    responsibility.
    Parallel Multiple: Catching
    all out of a set of parallel
    events.
    Start End
    Intermediate
    Catching
    Throwing
    Event Sub-Process
    Interrupting
    Top-Level
    Event Sub-Process
    Non-Interrupting
    Boundary
    Interrupting
    Boundary Non-
    Interrupting
    Sequence Flow
    defines the execution
    order of activities.
    Conditional Flow
    has a condition
    assigned that defines
    whether or not the
    flow is used.
    Default Flow
    is the default branch
    to be chosen if all
    other conditions
    evaluate to false.
    Task
    A Task is a unit of work, the job to be
    performed. When marked with a symbol
    it indicates a Sub-Process, an activity that can
    be refined.
    Transaction
    A Transaction is a set of activities that logically
    belong together; it might follow a specified
    transaction protocol.
    Event
    Sub-Process
    An Event Sub-Process is placed into a Process or
    Sub-Process. It is activated when its start event
    gets triggered and can interrupt the higher level
    process context or run in parallel (non-
    interrupting) depending on the start event.
    Call Activity
    A Call Activity is a wrapper for a globally defined
    Sub-Process or Task that is reused in the current
    process.
    Task Types
    Types specify the nature of
    the action to be performed:
    Send Task
    Receive Task
    User Task
    Manual Task
    Business Rule Task
    Service Task
    Script Task
    Markers indicate execution
    behavior of activities:
    Activity Markers
    Sub-Process Marker
    Loop Marker
    Parallel MI Marker
    Sequential MI Marker
    ~ Ad Hoc Marker
    Compensation Marker
    A Communication defines a set of
    logically related message exchanges.
    When marked with a symbol it
    indicates a Sub-Conversation, a
    compound conversation element.
    A Forked Conversation Link connects
    Communications and multiple
    Participants.
    A Conversation Link connects
    Communications and Participants.
    Inclusive Gateway
    When splitting, one or more
    branches are activated. All
    active incoming branches must
    complete before merging.
    Complex Gateway
    Complex merging and
    branching behavior that is not
    captured by other gateways.
    Exclusive Event-based Gateway
    (instantiate)
    Each occurrence of a subsequent
    event starts a new process
    instance.
    Parallel Event-based Gateway
    (instantiate)
    The occurrence of all subsequent
    events starts a new process
    instance.
    Pool
    (collapsed)
    Multi Instance Pool
    (collapsed)
    Communication
    Sub-Conversation
    Pool
    (collapsed)
    Participant B
    The order of message
    exchanges can be
    specified by combining
    message flow and
    sequence flow.
    Pool Pool
    Pools (Participants) and Lanes
    represent responsibilities for
    activities in a process. A pool
    or a lane can be an
    organization, a role, or a
    system. Lanes subdivide pools
    or other lanes hierarchically.
    Lane
    Task
    Lane
    Task
    Pool
    Message Flow
    symbolizes information
    flow across organizational
    boundaries. Message flow
    can be attached to pools,
    activities, or message
    events.
    Data
    Task
    Input Out-
    put
    Data Store
    A Data Object represents information flowing
    through the process, such as business
    documents, e-mails, or letters.
    A Data Store is a place where the process can
    read or write data, e.g., a database or a filing
    cabinet. It persists beyond the lifetime of the
    process instance.
    A Data Input is an external input for the
    entire process. It can be read by an activity.
    A Data Output is a variable available as result
    of the entire process.
    A Message is used to depict the contents of a
    communication between two Participants.
    A Collection Data Object represents a
    collection of information, e.g., a list of order
    items.
    Pool (Collapsed)
    Collaboration Diagram
    Pool (Expanded)
    Lane
    Lane
    Choreographies
    Choreography Diagram
    A Choreography Task
    represents an Interaction
    (Message Exchange)
    between two Participants.
    Choreography
    Task
    Participant A
    Participant B
    A Choreography Sub-
    Process contains a refined
    choreography with several
    Interactions.
    Multiple Participants Marker
    denotes a set of
    Participants of the
    same kind.
    Swimlanes
    BPMN 2.0 - Business Process Model and Notation
    Collection
    Ad-hoc Sub-Process
    Task
    Task
    ~
    Message
    Start Event
    Message Flow
    Data Object
    Collapsed
    Sub-Process
    Event-based
    Gateway
    Escalation
    End Event
    Timer
    Intermediate
    Event
    Receive Task
    Attached
    Intermediate
    Timer Event
    Link
    Intermediate
    Event
    Manual Task
    End
    Event
    Data
    Store
    Link
    Intermediate
    Event
    Parallel
    Multiple
    Intermediate
    Event
    Text Annotation
    Group
    Multi Instance
    Task (Parallel)
    Message
    End Event
    Send Task
    Parallel
    Gateway
    Exclusive
    Gateway
    Attached
    Intermediate
    Error Event
    Signal
    End
    Event
    Call Activity
    Sub-Process
    Event Sub-Process
    Conditional
    Start Event
    Error End
    Event
    Start
    Event
    End
    Event
    Looped
    Sub-Process
    condition
    http://bpmb.de/poster
    Participant A
    Participant C
    Participant B
    Choreography
    Task
    Participant A
    Participant B
    Choreography
    Task
    Participant A
    Participant C
    Initiating
    Message
    Response
    Message
    Choreography
    Task
    Participant B
    Participant A
    When splitting, it routes the sequence flow to exactly
    one of the outgoing branches. When merging, it awaits
    one incoming branch to complete before triggering the
    outgoing flow.
    Exclusive Gateway
    Is always followed by catching events or receive tasks.
    Sequence flow is routed to the subsequent event/task
    which happens first.
    Event-based Gateway
    When used to split the sequence flow, all outgoing
    branches are activated simultaneously. When merging
    parallel branches it waits for all incoming branches to
    complete before triggering the outgoing flow.
    Parallel Gateway
    Choreography
    Sub-Process
    Participant A
    Participant C
    Participant B
    Model, Notation... and Execution
    PDF: http://www.bpmb.de/ima es/BPMN2_0_Poster_EN.pdf
    Printed: http://www.si navio.com/joomla/de/bpmn-poster.html
    12

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  13. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    When do I need a business
    process?
    Business process modeling acid test*:
    1. Long-running: hours, days, weeks, months, years, ...
    2. Bursty, sleeps most of the time:
    when awake, a flurry of activities and then finished or to sleep again!
    3. Persisted state: what happens between different steps or
    when the application server goes down?
    4. Orchestration of system or human communications:
    who has to do what until when? what happens afterwards?
    5. Flexibility to change it!
    * “Essential Business Process Modeling”, Michael Havey, O’Reilly Press
    http://shop.oreilly.com/product/9780596008437.do via http://stackoverflow.com/questions/4869734/how-do-you-know-when-you-need-a-bpm-solution
    13

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  14. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    What’s ahead?
    1. What is BPM?
    2. Why should I care as a developer?
    3. Approaches to BPM implementation
    4. Demo(s)
    14

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  15. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Different Approaches
    All code Less code Zero code
    Look ma,
    no frameworks or
    libraries!
    Look ma,
    no programming!
    Look ma!
    ...
    Logging (Log4J, SLF4J, ...)
    ORM (Hibernate)
    MyBatis
    Template engines
    (Velocity, FreeMarker, ...)
    MVC frameworks
    (Spring MVC, Struts, ...)
    “It’s just a
    state machine”
    “You can model all
    your process needs
    down to the latest
    detail”
    15
    “I can implement
    that in two days”
    BPM engines
    (jBPM, Activiti, camunda BPM)

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  16. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    All Code Approach
    • Customers pay for features not
    for infrastructure
    • Flexibility for changing business logic?
    • The best code is the one others
    have written, tested and maintain
    for you!
    “Under Pressure” by Queen:
    http://www.youtube.com/watch?v=4-rkJmRiFug
    Mm ba ba de
    Um bum ba de
    Um bu bu bum da de
    Under pressure
    16

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  17. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    All Code Approach
    Who’s going to maintain all that code?
    17
    From the movie: “Raiders of the Lost Ark” by Steven Spielberg. 1981.

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  18. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Less Code Approach
    • Focus on what brings value
    • Learn transferable skills
    • Yes, all abstractions are leaky
    • Yes, all software has bugs (yours too!)
    “You Can’t Always Get What You Want” by The Rolling Stones:
    http://www.youtube.com/watch?v=oqMl5CRoFdk
    “You can’t always get what you want.
    But if you try, you will find,
    you get what you need”
    Source: http://en.wikipedia.org/wiki/Keith_Richards
    18

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  19. • No developers as the implicit promise?
    • Will indeed work in some cases
    • Will not work in all cases
    Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Zero Code Approach
    Huey Lewis and the News - Trouble in paradise:
    http://www.youtube.com/watch?v=kk9TFRmWCH0
    19
    “Business analyst's home,
    he just got back from a modeling workshop.
    Plenty of models but nothing to execute.
    Developer said I, seen this before and
    it don't end nice.
    Looks like trouble in paradise. ”

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  20. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Zero Code Approach?
    Rod (Spring Framework) Johnson - ScalaDays 2013 Keynote (at 39 min.)
    http://www.parleys.com/play/51c1ffe7e4b0d38b54f46231
    20
    “Much, indeed arguably, most real-world
    programming has very little to do with
    elegant expression of algorithms.
    It has to do with interacting with the fact that
    the world is a total mess. Wherever you look.
    [...] It’s a nasty mess out there.
    And a great deal of the code that we write is
    far more to do with navigating that nasty
    mess than it is with elegantly expressing
    algorithms.”
    BTW, there’s a Scala User Group in Vienna!
    http://www.meetup.com/scala-vienna/

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  21. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Open-Source and Cloud BPMS
    21
    2010
    ... ...
    2011 2013
    Drools Flow^H^H^H^H^H
    jBPM 5.0 camunda fox 6.0 camunda BPM 7.x
    Amazon Simple
    Workflow Service
    Activiti 5.0 Effektif BPM
    2012
    KISBPM
    Amazon is a trend-setter.

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  22. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    All-Inclusive Platforms/Suites?
    22
    Source: http://www.amazon.de/Wenger-Schweizer-Offiziersmesser-Messer-Schatulle/dp/B000R0JDSI/
    Thanks to Bernd Rücker for the idea!
    http://de.slideshare.net/camunda/vortrag-auf-der-seacon-2013-in-hamburg-prozessautomatisierung-mit-bpmn-20-und-java
    Tightly integrated tools!

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  23. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Anatomy of a Process Application
    “The Anatomy Lesson of Dr. Nicolaes Tulp” by Rembrandt: http://en.wikipedia.or /wiki/The_Anatomy_Lesson_of_Dr._Nicolaes_Tulp
    23

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  24. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Talk is cheap.
    Show me the code.
    Source: http://en.wikipedia.org/wiki/Linus_Torvalds
    http://en.wikiquote.org/wiki/Linus_Torvalds#2000-04
    Anatomy of a Process Application
    24
    Demo

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  25. • Drive your process and assert your expectations:
    Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Fluent Process Testing API
    25
    https://github.com/camunda/camunda-bpm-fluent-testing

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  26. • Mock your process dependencies (services):
    Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Fluent Process Testing API
    26
    https://github.com/camunda/camunda-bpm-fluent-testing

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  27. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    The Job Announcement
    A kick-start application
    for your business process-
    centric project!
    Java EE 6 technology stack
    camunda BPM Platform
    Try online at:
    http://the-job-announcement.com/
    Source code at:
    https://github.com/plexiti/the-job-
    announcement
    27

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  28. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
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    Order Confirmation Rules Demo
    28
    https://github.com/camunda/camunda-bpm-examples
    Drools
    integrated!

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  29. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Conclusion
    • Why do I need...
    • ... in 1996 a language with a very slow virtual machine?!
    • ... in 2000 an MVC framework to implement my web application?!
    • ... in 2004 an ORM framework to implement my persistence concerns?
    • ... in 2010 an XML database?
    • ... in 2012 a NoSQL database?
    • ... in 2013 a business process engine to develop applications with
    processes as first-class citizens?
    29

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  30. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Give it a try!
    30
    http://camunda.or @camundaBPM #camunda

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  31. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
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    BPM and the Eclipse Ecosystem?
    31

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  32. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    Q&A
    32

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  33. Eclipse DemoCap Kepler 2013 – June 28th 2013 | Vienna
    rafael.cordones.me
    33
    Thanks!

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