Metadata:

Metadata or "data about data" describe the purpose, origin, extension, conditions of accuracy and prevailing user rights of the data set.

Before you use and possibly publish data sets or sections hereof, you must study and agree with these conditions and comply with the rules of user rights described in the metadata!

If you have got Acrobat Reader installed on your computer, you can read the metadata description here:

AIS-Metadata (in Danish!)

You may also download the metadata of the AIS information system in a zipped PDF format:

AIS-Metadata.zip (in Danish!) (7,8 MB)

To read files created in Adobe PDF format you must have the Acrobat Reader programme installed on your computer.
You can download the newest version for free here:

Adobe Acrobat Reader