Which type of forecasting method uses personal perspectives and opinions?

Indirect forecasting methods involve utilizing data or projections from other sources rather than personal opinions. This approach often relies on trends, historical data, or external expert analyses, which are not based on the forecaster's subjective views but rather on aggregated information from various channels.

Direct forecasting refers to methods that utilize observable data or straightforward measurements to predict outcomes. This approach typically involves using quantitative data and established models rather than personal insights, making it distinct from subjective methods that depend on individual perspective.

Objective forecasting methods are characterized by their reliance on measurable, empirical data and statistical analysis, minimizing the influence of personal biases or opinions. This contrasts with subjective methods, which prioritize individual judgment and interpretation over factual data.