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'''Metadata''' means "data about the data". It's a Structured information that describes a resource and makes it easier to retrieve, use, or manage an information resource<br>
== '''Metadata Definition''' ==
Metadata means "data about the data". It's a Structured information that describes a resource and makes it easier to retrieve, use, or manage an information resource<br>
The "meta" prefix (comes from the Greek preposition and prefix μετά-) means "after" or "beyond", it is used to mean "about". <br>
The "meta" prefix (comes from the Greek preposition and prefix μετά-) means "after" or "beyond", it is used to mean "about". <br>
Metadata can be defined as the data providing information about one or more aspects of the data. <br>
Metadata can be defined as the data providing information about one or more aspects of the data. <br>
| [[File:HighwayNoMetadata.png|545x545px]] || [[File:HighwayWithMetadata.png|545x545px]]
| [[File:HighwayNoMetadata.png|545x545px]] || [[File:HighwayWithMetadata.png|545x545px]]
|}
|}
== Why do we need Metadata ==
=== Why do we need Metadata ===
Metadata helps answering the following questions:
Metadata helps answering the following questions:
Who created the data?
Who created the data?
However, if not maintained Metadata becomes ineffective over time due to inconsistencies in structure, vocabulary, and spelling. In this light, metadata by itself could be meaningless.
However, if not maintained Metadata becomes ineffective over time due to inconsistencies in structure, vocabulary, and spelling. In this light, metadata by itself could be meaningless.
== Metadata Formats ==
=== Metadata Formats ===
A Structured documentation in XML format can be used to store/exchange metadata based on agreed upon Standards: ISO, DDI, FGDC, EML, Dublin Core, Darwin Core , SAML...
A Structured documentation in XML format can be used to store/exchange metadata based on agreed upon Standards: ISO, DDI, FGDC, EML, Dublin Core, Darwin Core , SAML...
[[File:MetaDataStandards.jpg|345x345px]]
[[File:MetaDataStandards.jpg|345x345px]]
== Metadata tools ==
=== Metadata tools ===
Multiple free and paid tools are available :
Multiple free and paid tools are available :
* ISA Creator
* ISA Creator