To become effectively visible, a firm, persistent link from the metadata of the deposited specimen to the respective character data in a repository would be a solution.
Metadata-based methods developed in this investigation relied on the assumptions that certain systems were reliable, persistent sources of truth for specific metadata elements, that the copies of metadata elements in external systems were faithful representations of the original, and that these copies had been properly assigned as attributes of entities in those systems.
The obvious conclusion should therefore be the establishment of an unambiguous association between the character states and ranges recorded for each specimen, or for each sample substantiated by a specimen, and their persistent connection with the specimen metadata.
In a data-intensive workflow, data and metadata, either temporary or persistent, are created and read at a high rate.
However, the MAX IV data catalog will permanently store the experimental metadata and provide a persistent identifier for each data collection.
Thirdly, there is still a lack of persistent identifiers and open standards of metadata for grey literature, which complicates the identification of relevant publications.
This last URL that identifies the actual source of the data itself is not available via metadata and is probably not persistent.
We argue that adoption of metadata-based standards based on persistent identifiers requires little or no additional code to be written to allow access to any specific instance.
Metadata is collected automatically during the submission process whenever possible and is registered with DataCite in accordance with their current metadata schema, in exchange for a persistent digital object identifier.
A = Accessibility is achieved by assigning persistent identifiers to the datasets and again associating them with appropriate metadata to enable automated retrieval processes if appropriate.
