OneSource Property Tax 9.4.02 from Thomson Reuters utilizes Microsoft Silverlight to deliver a completely browsed-based application. The Tax Manager browser-interface provides updates to data such as bills, assessments, real estate, personal property and returns while the Tax Center offers analytical tools. An overview screen displays multiple years of valuation and tax history for any parcel or property while graphs show the valuation of property through each stage of the assessment process from projected, to rendered, to initial through final values.