scope:

This Recommendation addresses specifications for the metadata, which especially focus on semantics aspects, related to general digital signage services. This Recommendation defines metadata for the following digital signage functionalities:

- terminal devices;

- play logs;

- content delivery scheduling;

- playlist and content;

- playlist schedule;

- screen layout and region;

- interactive service.

This revision updates the data types of elements/attributes of identifiers. The update aims to widen applicability of the specifications at the price of easy XML validation.