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This is another version of the homepage that Ginny would have seen at the beginning of the workflow if there were no open washers or dryers.
Analysis
Learnability
This design features self consistency, well-known UI features such as buttons and popovers, and guided start-to-finish workflow. Because of this, we feel this design is very learnable.
Efficiency
This design has a few efficiency issues. First, using the workflow model, while great for learnability, can potentially slow down an experienced user. Adding some sort of bypass for experienced users might be beneficial. Second, since the washer and dryer workflows are separated very early on in the process, a user cannot select washers and dryers at the same time. A possible solution to this would be to move the split of the two further down the workflow, or remove it entirely; the consequences of this would be a more cluttered design and, in our opinion, a worse user experience.
Safety
There are few safety issues in this design. One example