PURPOSE : A real estate investment and trust operation business model is provided to offer off-line real estate investment mutual fund service and on-line real estate brokerage service at the same time.CONSTITUTION : A company investigates a specific estate, builds an enterprise plan, determines an investment value, establishes an all-out plan, and enters it in an Internet site to invite investors. Utilizing the invested capital of investors, the company purchases the estate, selects a construction company, forms an investor supervision group, and pushes on with the enterprise. Then the company enters the progress of the enterprise and the investment share percentages in the Internet site. The company provides the trust operation/management service of the invested capital and the real estate brokerage service of the enterprise and carries out public relations service for the sale and lease of real estate. After completing the sale and lease of the enterprise, the company allots profits to investors according to the share percentages and has a business talk with investors for re-investment.? KIPO 2002