NAFRU Scout uses OpenStreetMap and businesses’ open web data to find businesses in an area. The reason is straightforward: OpenStreetMap is an open data source and it allows an area to be scanned systematically.
But like any data source, it has a particular way of being produced — and that shapes where it is strong and where it is weak. This post is about the limits worth knowing while reading your list.
How the data comes to exist
OpenStreetMap is a contributor-built map: the data is entered by volunteers and organisational contributors, not by a central authority. A café enters the map when someone who went there adds it.
Two consequences follow directly.
First, coverage is uneven. In city centres with an active contributor community, business coverage is very good; in smaller settlements it thins out noticeably. Expecting a similar number of results from two different districts is the wrong expectation.
Second, freshness is uneven. A closed business stays on the map until somebody removes it. A newly opened business is absent until somebody adds it. In one area that lag is measured in weeks, in another in months.
Tags are optional
In OpenStreetMap, a business record is a set of tags attached to a feature: its type, name, address, phone, website, opening hours.
Only some of those are filled in consistently. Name and type are usually there. Phone, website and opening hours are frequently missing — and that does not mean the business has no website. It means nobody has entered that information on the map.
Carrying that distinction into your list matters: “no website tag” and “no website” are not the same thing. The first is a data gap; the second is a finding. A message that treats the first as if it were the second is a message the recipient can disprove in one sentence.
The same business can be recorded in different shapes
A business may be recorded as a single point or as an entire building. Shops inside a shopping centre sometimes appear individually and sometimes under one record. Branches of a chain may have been named differently by different contributors.
In practice: you can meet the same business twice in one list, and the two entries may not carry identical names. Scanning for duplicates before you start using the list prevents two different messages going to the same business.
Licensing: open, but conditional
OpenStreetMap data is published under an open licence (ODbL). “Open” does not mean “no obligations”; there are conditions about attributing the source and about sharing derived databases.
In everyday use that means: using a prospect list inside your own work is fine; if you are thinking about republishing that data as a product, you need to read the licence terms. This post is not legal advice — but it is worth saying that “open data” should not be read as “unconditional use.”
Three checks before you use the list
1. Is the business still open? Do a quick verification before making contact: if there is a site, look at it; if not, check the date of the last post on a social account. A message sent to a closed business is not only wasted, it erodes your trust in the list.
2. Is the finding still true? An audit is a snapshot. Open the site once more right before sending. Writing about a problem that has since been fixed is the weakest possible opening move.
3. Did the contact detail come from the business itself? A detail on a map tag may not be what the business published; another contributor may have entered it. Where possible, prefer the contact route on the business’s own site.
Why knowing the limits helps
Knowing the limits of a data source is not a reason to abandon it; it is what lets you read it correctly.
OpenStreetMap is genuinely a good starting point for local business discovery: it is open, systematic, and suited to area-based scanning. But the list it produces is a beginning, not a conclusion — and the final step, the decision of whether this business is actually worth writing to, always has to be made by a person.
That is why Scout shows the list and the reasoning behind each finding, and leaves the decision to you.