When to reassess a location: data, changes and comparisons
Start with a specific change
A territorial assessment may need revisiting when a project assumption changes: another candidate address, a different business format, updated rent or a question about the catchment. Before requesting more analyses, identify which information could change the decision.
Choose the timing around the decision, new information and the update schedules of relevant sources. A monthly, quarterly or annual interval applied to every sector may produce unhelpful comparisons.
Distinguish the report date from the data date
Opening a saved report today does not automatically update its sources. A new analysis may also use data with the same reference period as the previous one: a different processing date alone does not establish that the territory changed.
ISTAT Permanent Population Census results are published for reference years through different dissemination tools. To interpret a demographic difference, check the report’s reference period and whether its areas are comparable.
What you can do in Theorem©
- •Revisit an existing report: return to its initial assumptions, sources and observations collected after the analysis.
- •Extend or modify an analysis: use Edit analysis to select available changes and review the quote before confirming. A change produces a new version, while earlier versions remain available.
- •Compare locations: place two to four completed analyses of the same business category side by side. Check module and catchment differences before attributing a score difference to the area.
- •Consult demographic history, where available: the module compares census data available for the area. It is not a monthly measurement, and coverage depends on available data.
These operations start at the user’s request. They do not describe continuous area surveillance or automatic periodic delivery of new reports.
Document what you are comparing
A fictional example: you increase the catchment travel time and obtain more residents in the next report. Before describing this as population growth, check whether it simply reflects the larger area considered.
For each comparison, record the location, category, catchment parameters, modules, version and available reference periods. If the configuration changes, make clear that you are also comparing different analysis assumptions.
Choose the follow-up that answers the question
If the asking rent changed, updating your economic checks may be enough. Assessing another area or format may call for a different configuration. Available operations have their own quotes; reassessment does not mean every change is free.
Read the FAQ on analyses, modules and costs or book a free demo to discuss which follow-up would help your case.