Which of the following best represents a uniform data reference?

A uniform data reference is characterized by its structured and systematic approach to data collection and valuation. In the context of property assessment, this means utilizing standardized methods and criteria that can be consistently applied across different properties. Having a structured system of valuation ensures that properties are assessed fairly and accurately based on comparable factors, such as location, size, type, and market conditions. This consistency not only aids in reducing discrepancies in assessments but also enhances transparency and trust in the valuation process.

The other options do not uphold the principles of a uniform data reference. A random selection of data points lacks the necessary structure and consistency, making it unreliable for valuation purposes. A subjective appraisal introduces personal biases and interpretations, which can lead to discrepancies and unfair assessments. An inconsistent reference point does not provide a stable foundation for comparison and can create confusion and inaccuracies in property valuations. Therefore, the structured system of valuation is the most appropriate representation of a uniform data reference.