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However, at the end of the 10 years, the home owner sells the house and recoups some of the initial additional investment costs. Depending on the residual value estimation approach, the present value net cost savings in life-cycle costs to the homeowner is either $41 714 or $84 997.
Revision 2 of NIST SP 800-64, Security Considerations in the System Development Life Cycle, was developed by Richard Kissel, Kevin Stine, and Matthew Scholl of NIST, with the expert assistance of Hart Rossman, Jim Fahlsing, and Jessica Gulick, of Science Applications International Corporation (SAIC).