# data[].attributes.headline
Metadata are accessible, even when the data are no longer available. (A)

# data[].attributes.subject
Metadata are accessible, even when the data are no longer available. (A)

# data[].attributes.headline
The description of the data consists only of metadata with key-value pairs. (R)

# data[].attributes.subject
The description of the data consists only of metadata with key-value pairs. (R)

# data[].attributes.headline
The metadata are registered or indexed in a searchable directory. (F)

# data[].attributes.subject
The metadata are registered or indexed in a searchable directory. (F)

# data[].attributes.headline
The data is provided with an individually described license. (R)

# data[].attributes.subject
The data is provided with an individually described license. (R)

# data[].attributes.headline
(Meta)data include qualified references to other (meta)data. (I)

# data[].attributes.subject
(Meta)data include qualified references to other (meta)data. (I)

# data[].attributes.headline
The data will be archived after the research project. Only the professor has access to the data. (R)

# data[].attributes.subject
The data will be archived after the research project. Only the professor has access to the data. (R)

# data[].attributes.headline
The data are well-described so that they can be replicated. (R)

# data[].attributes.subject
The data are well-described so that they can be replicated. (R)

# data[].attributes.headline
The data is provided with a very restrictive license and therefore no publication of the modified data is permitted. (R)

# data[].attributes.subject
The data is provided with a very restrictive license and therefore no publication of the modified data is permitted. (R)

# data[].attributes.headline
(Meta)data are assigned a globally unique and persistent identifier. (F)

# data[].attributes.subject
(Meta)data are assigned a globally unique and persistent identifier. (F)

# data[].attributes.headline
The data are stored in a special, proprietary file format. (I)

# data[].attributes.subject
The data are stored in a special, proprietary file format. (I)

# data[].attributes.headline
You have to pay to get access to the data. (A)

# data[].attributes.subject
You have to pay to get access to the data. (A)

# data[].attributes.headline
The research data are described with rich metadata. (F, R)

# data[].attributes.subject
The research data are described with rich metadata. (F, R)