Many sites, thin connections, and staff who should not be operating a media system.
A price change, a promotion, a seasonal message. Decided once and live in every store at the time you set it for, whether that is forty sites or four hundred. Nobody behind a counter opens anything, and no store manager is asked to be a media operator.
Retail estates share three constraints: many sites, connectivity that varies by location, and store staff who are not media operators. All three are the same problem, which is that nothing can depend on somebody being in the building.
Nothing is distributed. A screen composes what it shows from the prices, promotions and hours you have declared, so changing them once changes every screen that reads them. Rules carry their own dates and regions, which is why a promotion can run in the south, start on Monday and stop on its own.
Where connectivity is genuinely poor, Ava Display Edge puts a server in the building so large content crosses the internet once for the site instead of once per screen. It is optional, and screens fall back on their own if it stops.
Video sells what a still cannot. A product film above the aisle it belongs to, a seasonal campaign across every store at once, a supplier-funded spot that has to be proven to have run. Cached in each store beforehand, so a slow line in one shop does not drop the campaign in that shop.
One place to change it, and every location follows. No file sent to each site and hoped for.
Scheduled by location, region, format and daypart, with an end time as well as a start.
No on-site operation. Store staff are never required to interact with the device.
Every screen reports whether it is actually rendering, not whether a command was sent.
Outbound connections only, so no inbound rules and no store network reconfiguration. Most sites need no changes at all.
Changed once from one screen, held on every device in advance, and live at the time you chose.
None of the above is a playlist somebody maintains. Each screen is a surface for Ava, which holds one understanding of the place and knows which room it is in, so what belongs there at that hour is composed rather than authored. A price change and a promotion window are enough for her to correct an aisle overnight across every site.