BPM

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July 1, 2010 by huionn

This week I have unexplainable interest in BPM. So, I am basically doing nothing, just surfing for BPM during (most of) working hours.

These are random finding about BPM:

  1. Beats Per Minute (BPM) is a unit typically used as measure of tempo in music. (ref: http://en.wikipedia.org/wiki/Tempo#Beats_per_minute)
  2. Business Process Management (BPM) will be among the fastest growing software market (ref: http://www.gartner.com/it/page.jsp?id=502645). So, BPM skill can be a hot skill in coming years.
  3. I am totally ignorant about BPMS vendors. It seem the leading BPMS are Pegasystems and Lombardi Software. (Lombardi Software was acquired by IBM end of last year.)
  4. I am quite aware of open source BPM in Java (jBPM, OSWorkflow, Apache ODE etc) http://java-source.net/open-source/workflow-engines
  5. There are two ways of using/deploying BPM(S) – embedded or standalone BPMS.
  6. There are two ways of implementing BPM – process oriented (Lombardi, jBPM) or rule based (Pegasystems, Drools Flow). Rule based BPM seems to be more flexible – Drools Flow supports Unstructured, Ad-Hoc Processes, and it integrates business rules with business process.
  7. Java developers hate BPM products. So BPM suites target at business people, promising that no technical programming skills are required to use BPMS.
  8. As a exercise of learning Drools Flow, I do a simplistic performance testing.

    The script action prints “Hello World”.
    After 100 times of warm ups, invoking 10,000 times of StatefulKnowledgeSession.startProcess() took ~350ms (0.035ms per process execution). As comparison, 10,000 times of System.out.println(“Hello World”) took ~0.0125ms per execution.
    So in other words, the overhead of process execution in Drools Flow is about 2 System.out.println(…) statement, which is considerably fast.

Which to use? jBPM or Drools Flow? Both are from JBoss and possibly somehow merged in jBPM 5…

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