Weighted historical index (WHI) method only supports generating 1-week forecasts; only ABM supports multi-week forecasts.
You could generate WHI forecast for a week and compare that week to one week in ABM forecast.
To compare schedules based on WHI with ABM, for WHI you could temporarily change planning period to 1-week and generate a schedule with WHI and then compare that one week to same week on ABM associated schedule.
What differences/discrepancies would you be looking for? Forecasts generated will differ between WHI and ABM and schedules will differ within confines of constraints due to the forecast differences.
ABM is the preferred forecasting method and the basis for advanced features available today and those in the near future.
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Jay Langsford
VP, R&D
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