FEATURE have disastrous consequences for human life, property, or the environment. Domain knowledge gives insight both on the greater systems in which the designs will function, and on the detailed parts of the systems one develops. This systemic understanding is important in forming the risk awareness needed when designing for such workspaces. It is difficult to gain this domain knowledge and to envision what work and life on a ship are like without having been at sea. Through the workblogs, mariners express in publishable form insights on their domain and the operations in which they are involved. One such blog is Rigmover [8], authored by a mariner who works with moving and positioning drilling platforms. As an example, in a blog post titled “Rig move for dummies”(January 23, 2013), he provides a description of rig-moving operations starting with why rigs are moved, continuing with a description of the operation and the actors involved. He accompanies the text with close-up pictures that show the process of rig moving. This allows the reader to examine the operation in a concrete manner. We find similar accounts of operations in other blogs, for example the shipping company Maersk Line’s Officers Blog [9]. In a post published July 18, 2012, a Maersk officer provides an in-depth description of how he and his colleagues aboard an anchor-handling tug supply vessel spent two weeks towing a jack-up rig from Esbjerg in Denmark to the Gorm Field in the North Sea. A few months later, on September 12, the same officer tells us that he is on his way to Africa: