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DMN Method and Style 2nd Edition

Blog: Method & Style (Bruce Silver)

In any emerging area it is possible to be too early, and with DMN Method and Stylepublished in 2016, I plead guilty to that.  It seemed like a good idea at the time.  DMN 1.1 was finalized, and the bugs that had prevented implementation of DMN 1.0 were fixed.  But it’s one thing to have a standard be implementable and quite another for real tools actually to implement it.  The best tool at that time didn’t support BKMs or proper decision table syntax or FEEL, and it couldn’t execute everything it could model.  So yeah, it was too early for a serious book.

But times have changed!  It’s 2018.  Even though DMN 1.2 has just gone final, the best tools already fully support it – DRDs, decision tables, BKMs, decision services, model import, etc. – all with the proper boxed expressions, XML serialization and model interchange, model execution, even one-click cloud deployment.  Much better!

And back in 2016, I admit, I myself did not have enough experience in decision modeling to give good advice.  Now I have a lot more, along with a better understanding of what matters, what decision modelers care about, what’s too technical.  A few months back, Edson Tirelli and I published the DMN Cookbook, a DMN guide for technical modelers and programmers.  Now I’ve gone back and updated DMN Method and Style in a second edition, addressed to business users, completely rewritten and updated to DMN 1.2, and closely aligned to my DMN Basics and DMN Advanced training.  It should be on Amazon in about a week.  Below is the table of contents.

Preface to the Second Edition. v

1.    Business Decision Modeling. 9

2.    Fundamentals. 19

3.    Decision Requirements. 37

4.    Basic Decision Logic. 47

5.    Routing Decisions. 59

6.    Decision Table Hit Policy. 65

7.    Decision Table Analysis. 77

8.    Data Modeling and Logic Reuse. 87

9.    Classification Patterns. 97

10.  Decision Services. 109

11.  DMN Beyond the Basics. 121

12.  Literal Expressions. 127

13.  Contexts. 137

14.  Calendar Arithmetic. 145

15.  Handling Lists and Tables. 151

Index. 171

About the Author. 175


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