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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 this 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 its use and history)
  • Increases credibility/reliability of data
  • Provides transparency about data that is not complete or not perfect (sets expectations and can provide the purpose of the dataset)
  • It can increase interest by others iwho who 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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  1. Open ArcCatalog
  2. Go to Tools > Options
  3. Go to the Metadata tab
  4. Choose the Default Style sheet Stylesheet as ISO
  5. Chose the Metadata Editor as ISO Wizard

Overview of the metadata toolbar in ArcCatalog:

Metadata templates may be exported as an xml for use in other data catalogs or reloaded in ArcCatalog to populate metadata for data with like information (e.g. 5 different layers from the same datasets/source).  To export the metadata as an xml, use the Export metadata tool in the metadata toolbar and to import metadata from an xml use the Import metadata tool.

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