Signage ROI takes each fact from a named public source, shows the date the source was read, and re-verifies the facts on a schedule. A fact that no public page states is shown as not published, never estimated.
What counts as a source
- Primary: the vendor's own pages, product documentation and announcements, and manufacturer or standards documentation.
- Secondary, labelled as such: trade press with a named publication and date.
- Not used: anonymous forum posts as proof, unsourced statistics, and prices quoted in sales calls.
How rankings are built
A ranking names its criteria before it lists a single product. A product earns a criterion only when its own published pages state it, and the table shows which criteria each product meets. Rankings answer a narrow question, for example which platform suits small teams with mixed screens, and do not claim a single best product for every buyer.
Verification schedule
- Facts and supported devices: re-verified every quarter and after any announced product change.
- Every page shows its last verification date, and the changelog lists what changed.
Corrections
A reader who finds a factual error can send the correct public source to contact@roitechnologies.net and the page is updated with a changelog entry.
Coverage
Signage ROI covers digital signage and narrowcasting, including Screenbird. Every product on a ranking is checked against the same published criteria, and the criteria are listed on each ranking page.