Management system user interface for comparative trend view

摘要

Methods mediums and systems include use of a system manger application in a data processing system to manage a building automation system to display a trend view chart on a graphical user interface based on a trend view definition showing the changing value of point data over time from a building automation system device and to automatically display a comparative chart based on the trend view definition of historical point data from the building automation system device upon selection of a predefined comparative trend view button and an offset time period.