Glossary

collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally (Source: Wikipedia)

a collection of data which is organized and stored electronically. Databases are designed for storing and managing data efficiently 

a collection of data, usually for analysis or archiving purposes

an actionable, interoperable, persistent link to any entity (thing: physical, digital, or abstract) (Source: DOI Foundation)