Computer-assisted mass appraisal
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Conceptualized, developed, implemented and promoted by John Q. Ebert beginning in Lansing, Michigan in 1965 as computer-assisted rather than computer-generated calculations of market value appraisals. Further implemented in Spartanburg County, South Carolina in 1970.
Use of acronym
Melton Spivak, 1973 IAAO Conference, Miami, Florida following a presentation by John Q. Ebert and Dr. Robert J. Anderson regarding computer-assisted mass appraisal for smaller jurisdictions, during the Q&A portion, Mr. Spivak asked a question from the audience with the very first utterance of the acronym “CAMA” with his pronunciation of “Ka-mah.” From that point on the word/term became ubiquitous and universal to the many versions of computer-processed mass appraisal systems for property tax administration. Mr. Ebert and Dr. Anderson continued in definition and preachment of the concept which soon spread throughout the world of mass appraisal of market values in property tax administration.
First automated commercial properties CAMA system
1982, by TEC International, Boston, Massachusetts. Designed by Mr. Joseph E. Beres and Mr. John Q. Ebert as the first full integration of the cost, market, and income approaches to valuation of urban commercial properties. Technically designed and programmed by Richard A. Carn of TEC.
The first real time, fully synchronized CAMA Cloud was implemented by Data Cloud Solutions, LLC. Daniel T. Anderson's (DCS President) patent-pending technology allows for real time data transmission both to and from mobile field devices. All data, including sketches, photos, and video, is transmitted in real-time back to administrative devices, allowing for immediate quality control.
Property tax laws and rates policies are forcing property managers (like local governments) to take responsibility for the standardisation of market valuation. National standardization as well as creating consistency will also smooth the real estate market fluctuations, further benefiting the macro economy.
A valuation company is bound to declare all components used for arriving at a fair value. Using a CAMA model enables valuation companies to create and impose a standard system of evaluation.
- Slovenian real estate appraisal system, based on Sinergise's Application Server and Academa's Valuation modelling - see also Academa
- NCSS (statistical software) includes tools for mass appraisal, such as multiple regression and hybrid appraisal models.
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