When a proposal nears the end of its Definition, it undergoes a final review by the Community Team to see if and how it fits with the rest of the network. During the final review, any discussions and surrounding activities are considered, and the title and description are finalized in preparation for launch at 100% Commitment.
Yes, this site is slated to launch as "Operations Research". It was the community's top choice and we concur. This article summarizes some of the issues of naming sites. Wikipedia [Operations Research] is also sometimes a good source to provide a higher-level mainstream view of a how subject is commonly referenced. While the other options were more elaborate and detailed, the titles were too long for our design and the title need only to be easily identified among those already familiar with the subject. If it's difficult to distill the subject down to a concise title without enumerating all of the topics it includes, it will have a much harder time being considered as a viable topic for a site.
This site has been fully approved, and it is on its final approach to becoming a full Q&A site.