Start with category, not with technology. Ask whether the offering is one of the listed products or services. Covered products include consumer general purpose computer hardware and operating systems, specified self service terminals, consumer terminal equipment used for electronic communications services, consumer terminal equipment used for audiovisual media services, and e-readers. Covered services include electronic communications services, services providing access to audiovisual media services, defined elements of passenger transport services, consumer banking services, and e-commerce services.
Then identify role. A manufacturer, importer, distributor, and service provider do not carry the same obligations or evidence burden. Product roles trigger technical documentation, conformity assessment, EU declaration of conformity, and CE related workflows. Service providers need operating controls, accessible information, and a defensible service evidence pack.