It is the art and science of estimating the value of real estate property rights. The specific purpose at a specific time and for specific users, taking into account all the characteristics of the property, and all the basic economic years of the market, and this includes all the interests, rights, and obligations relating to the ownership of each permanent improvements and accrued accruals associated with it.For example: owning, disposing of property, mortgaging, Insurance, expropriation, easement, usufruct