WikiWork is a concept originally developed in April 2007 that approximates how many classes or "steps" a project's articles need to ascend for all of the project's articles to reach Featured status. You can read about it in detail in this Signpost article.
To disable WikiWork metrics for your project, visit User:WP 1.0 bot/WikiWork and fill out the form at the top of the page. Note that this does not stop your project's WikiWork data from being computed -- it just hides it in the table. If you would like to incorporate WikiWork data somewhere else, leave us a message.
The omega represents "relative WikiWork" or the average workload per article. This involves adding up the number of steps all of the project's articles must pass to reach Featured status (with A-class articles considered one step, Good Articles two steps, B-class three steps, etc.) and then dividing this number by the total number of articles under the project's scope, including articles that have already reached Featured status. The resultant number will be between zero and six with lower numbers considered more desirable. For example, the relative WikiWork for WikiProject Aircraft is 4.39, meaning that the average article about aircraft is between C-class and start-class. By comparison, WikiProject Elements has a less daunting workload with a relative WikiWork rating of 3.62 while WikiProject Olympics is bogged down with a relative WikiWork of 5.79.
This is because different WikiProjects have different numbers of columns. You'll need to contact us and then we can implement a fix for your table.
Please get in touch!
This FAQ incorporates content from Wikipedia:Wikipedia Signpost/2013-02-25/WikiProject report.