I'm not positive, but I believe some companies allow their employees to access Workbrain from home. If so, I don't know what functions are enabled. However, since Workbrain is basically software for forecasting, scheduling, time and labor, just being able to access it from home means those employees have access to at least one of the following: work schedule, shift-swap (some implementations have an option that allows employees to swap shifts, effectively changing their own schedules in the system), time-off requests, applying vacation hours. (Search workbrain scheduling on YouTube for a demo. Note: The company that produces Workbrain is called Infor.)
I'm not sure why Target hasn't given us home-access to our schedules. Maybe we're using an older version of Workbrain because of various custom proprietary applications we've built around it (i.e. technical challenges to upgrading). Maybe Target realizes that many -- if not most -- stores are not scheduling according to best practices. For instance, many stores "publish" a flawed schedule at deadline to avoid an impact to a particular HR score, and continue to make edits afterwards before "posting" a hard copy on the board. This could cause confusion if a team member accesses her schedule from home soon after it's "published" (publishing deadline is either 10A Central or Noon Local on Thursday, not sure) and it's subsequently edited before "posting". But who knows.