Table 1 illustrates room occupancy for the existing system. Each row in the table follows the patients who checked in on a given day. The columns indicate the number of patients in the hospital on a given day. For example, the first row of the table shows that 30 people checked in on Monday and ware in the hospital for Monday, Tuesday, and Wednesday. Summing the columns of the table for Wednesday indicates that there are 90 patients staying in the hospital that day.