| 摘要 |
A computer system for providing a remote service including among other steps, the steps of selecting a reference item, wherein the reference item comprises at least one of a reference service and a reference service provider, selecting a specification of the reference item, evaluating the specification of the reference item against a specification of one or more alternatives to the reference item, and determining interchangeability between the reference item and the one or more alternatives to the reference item based on evaluating the specification of the reference item in relation to the specification of the one or more alternatives to the reference item.
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