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Overview

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Metadata is data [information] that provides information about other data. Information such as: the data source, date of the dataset, how the dataset was created, how it can be shared, and other details about its use. The creation of metadata is vital to ensure that the copyright of the data are preserved and any specifics on the use of the data are maintained.  Everyone loves having lots of metadata attached to their datasets, but creating and maintaining these metadata is often too burdensome during field operations.  

When metadata is included with a dataset: 
  • It improves understanding of the dataset (reduces questions and confusion of it use and history)
  • Increases credibility/reliability of data
  • Provides transparency about data that is not complete or not perfect (sets expectations and can provide purpose of dataset)
  • It can increase interest by others iwho may have data you are missing
  • Directly related to discoverability on HDX. These specific elements are used in the search algorithm
    • Tag
    • Title
    • Description
    • Location
    • Contributor (Organization)
    • Source


Where Metadata can be found 

When developing metadata for Common Operational Datasets (or any dataset that is shared on HDX) consider where it will be located: 

on HDXIn / with the Datasetin COD-AB web services


  • This is the most public version of metadata and has a direct impact on the credibility and discoverability of the dataset
  •  It is downloaded with the dataset, ensure the client has the metadata for reference in the future
  • Located in the geodatabase, on a worksheet in excel, as a text file that accompanies a csv.
  •  This is information available with the web service
  • Consider impact metadata has on discoverability on HDX
  • For COD-AB use as much material as possible from ITOS (can use it in the web services metadata)
  • Use the metadata that will be used for HDX to create information for Excel and text files (can copy/paste)
  • For COD-AB use as much material as possible from ITOS (can copy/paste)
  • ITOS creates this with their process, it is reliant on metadata provided with the COD-AB


Process

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To balance the need for metadata against the burden of creating and maintaining it, OCHA recommends a 3-tiered system of metadata options:

Tier 1: Emergency Metadata
Tier 2: Basic Metadata
Tier 3: Full Metadata

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