Overview

Data Selection

The table below shows the collection included in this evaluation as well as the record count for each collection.

Table 1. Collections and record counts

Note: GSFCS4PA 2016 records were moved to the GES_DISC collection in 2017

NASA 2016 vs NASA 2017

This analysis compares element usage (elements and attributes) in the 18 NASA collection with the 8 non NASA (Other) collections.  This evaluation identifies elements which exist in collections.  In order for an elements to exist in a collection it must be present in at least 1 metadata record included in the collection.

element usage for NASA collections and Other collections is shown below using bubble charts.  The bubble chart interpretation graphic provides a schematic for interpreting the bubble plots. 

Bubble Chart Interpretation

NASA 2016 Exists vs NASA 2017 Exists

Chart 1 below compares element existence in 2016 NASA Collections with 2017 NASA collections.  The X axis shows the number of NASA collections that include an element. The Y axis shows number of Other collections that include an element.  The bubble size shows the number of elements included in the 2 collections.

The large blue bubble in the upper right corner of the plot shows the elements that exist is all 17 NASA 2016 and 2017 collections.  This bubble includes 51 items, as shown in the legend.  The large red bubble in the lower left corner of the plot shows items that exist is 1 NASA collection and in 0 Other collections.  This bubble includes 44 items, as shown in the legend. The data for Chart 2 is accessible in Google Sheets.  To view the data and bubble chart in Google Sheets click on the image. 

Chart 1: NASA 2016 EXIST vs NASA 2017 Exists

Accessing the Chart

To access the data for this chart, click on the chart graphic above to view an interactive version in Google Sheets.  The interactive version enables data identification for each bubble and includes a look up table for identifying the ISO items associated with the bubble. To access and use the interactive version:

1. Click on the chart graphic above to view the chart in Google Sheets
2. Hover over the bubbles with your mouse to identify the concept existence in NASA collections and concept existence in Other collections associated with the bubble.  The hover identification also shows the number of items (Counts) associated with each bubble.
3. To the right of the chart is a lookup table for identifying the xpaths associated with each of the bubbles.  To identify the xpaths associated with a bubble, match the NASA Exists and Other Exists values from the bubble hover with the values in the look up table.

Elements in all NASA and Other Collections

Twenty-seven items (elements and attributes) are complete in all NASA and all Other Collections:  See the All NASA and All Other filtered view to identify these items.

Elements in all Other Collections and some NASA Collections

Nineteen items (elements and attributes) are complete in all Other collections and complete in a smaller number of NASA collections. See the All Other and Some NASA filtered view to identify these items.

Ted please double check this filter.  The table below includes 52 items not 19

Table 2. Metadata Elements that are in all Other and in a smaller number of NASA collections

Elements in some NASA Collections and no Other Collections

One hundred and fifteen items (elements and attributes) are complete in 0 Other collections and are complete some number of NASA collections. See the No Other and Some NASA filtered view to identify these items.

Other Filters

• View just Elements
• View just Attributes