What if the new Standard breaks the old tests?

Would you release a product to the public before you run the tests?  Whether you are manufacturing, or software, or agriculture, or anything, if you have a set of tests, you would run the tests before providing the final product to the pubic.  Makes sense, right?  The world of technology standards is different. Continue reading

Joining the DMN TCK

The DMN TCK is a group of people united around a single desire: we want to see DMN succeed as a decision modeling paradigm.  We want it to really work, and not simply be  another passing fad.  We want transparency of what the particular implementations can and can’t do, and we want an independent way to verify vendor claims.  Do you have a vested interest in DMN?  Maybe you should consider joining the TCK team to reduce your risk, and to assure the success of the DMN marketplace. Continue reading

A Strange FEELing about Dates

The new expression language for Decision Model and Notation standard is called the Friendly Enough Expression Language (FEEL).  Over all it is a credible offering, and one that is much needed in decision modeling where no specific grammar has emerged as the standard.   But I found the handling of date and time values a bit odd. Continue reading