The version number is printed at the bottom the page with the ISBN, just before the Table of Contents, as seen below:

The image above indicates version 2.1.  The original version, which became available on October 31, 2011, is 2.0.   A minor revision, version 2.1, became available on Amazon November 15, 2011.

Changes in Version 2.1

The following table lists the changes from v2.0 to v2.1:

Page Para v2.0 v2.1
28 4 and an
38 4 activities subprocesses
38 4 activity subprocess
41 2 out signifies out, signifies
41 3 case). case.
62 4 end state identified end state
62 activity activity identified in Step 2
67 4 diagram, one end event per end state. diagram, with one top-level end event per process end state.
67 5 Expand top-level subprocesses in Expand each top-level subprocess in a
75 2 implies the message flow source and target participants are the same participant… which is not allowed by the specification. suggests the message flow source and target participants are the same participant… which is not allowed and makes no sense.
80 1 Level 1 palette Level 1 or Level 2 palette
2 Use a single start event and remove the ambiguity. In a subprocess, always use a single start event, removing the ambiguity.
82 2 and along with
91 1 in addition, a in addition, upon occurrence of the trigger, a
105 5 end event to boundary event end event to a boundary event
108 5 process to announce process or system to announce
111 3 unlinke a regular subprocess, it has it has
3 active inside a running process level, active while the process level is running,
125 2 two factors: whether two factors: 1) whether
2 and the and 2) the
3 or normal and exception flow exits from or
129 1 support transactions support for transactions
136 4 detail elements and attributes not included in the Analytic conformance class. details omitted in most models and not represented in the notation.
150 5 it is possible that a “Ref” element or attribute may some “Ref” elements or attributes will
151 1 value by QName value referenced by QName
158 2 XPath), is implied XPath) is implied
4 recommended the export recommended if the export
162 7 processType signifies processType, signifies
169 5 specify specific
182 1 has id and name has id and name and belongs to a process
4 complicates the serialization makes the serialization more verbose
220 5 indicating a physical item indicating data or a physical item
5 an element an element or complex type


Errata in Version 2.1

These may be corrected in a future revision.  Please contact with any errors you find.

  1., para 2.  Should say “The approach rests…”
  2. P.xi, para 4.  Should say “Some of the shapes…”
  3. p4, para 7.  Should say “The diagram should not violate the rules…”
  4. p5, para 7.  Should say “and the like, not in the diagram…”
  5. p7, para 5.  Should say “In the world…”
  6. p9, para 2.  Should say “overall structure of the model…”
  7. p9, para 4.  Should say “may be able to comprehend…”
  8. p11, para 2.  Should say “functions rather than actions…”
  9. p67, para 5, item 4.  Should say “in a child-level diagram…”
  10. P206 – R1200…  These include task, userTask, serviceTask, sendTask, receiveTask, callActivity, subProcess
  11. P206 – R1300… @triggeredByEvent=false().  Actually this rule is redundant to R1200 – delete it.
  12. P206 – R1303… @isForCompensation=true()
  13. P207 – R1500… @parallelMultiple=true()
  14. P207 – R1600… @parallelMultiple=true()
  15. P207 – R1624… @cancelActivity=false()