EXHIBIT 10.16 PURCHASE AND SALE AGREEMENT This Purchase and Sale Agreement ("Agreement") is made as of this 19th day of December 1997, by and between ARIS CORPORATION, a Washington corporation ("Purchaser") and VANGARD MANAGEMENT COMPANY, JEFF...16 Purchase and Sale Agreement • March 30th, 1998 • Aris Corp/ • Services-computer programming, data processing, etc. • Washington
Contract Type FiledMarch 30th, 1998 Company Industry Jurisdiction