Consider joining the DITA Machine Industry group on LinkedIn. Then you can discuss what you are missing in the DITA 1.2 standard "out-of-the-box", including the new machine industry specialization, and what you need to make DITA applicable to your business in the machine industry.

Learn from others and consider sharing any specializations have you made etc. Excellent ideas and requirements that are discussed can be considered by the OASIS DITA machine industry sub-committee in future development of the DITA standard.