Announcement: The operation of NSDL has been transferred to ISKME's OER Commons (effective December, 2014) - Read the news release.
This documentation describes the policies, procedures, and services that existed while NSDL was operated by UCAR.
NSDL collection contributors can align resources to a AAAS benchmark and those resources will display in the 'Top Picks' tab within the Science Literacy Maps.
There are two primary methods to enable resources to display within the Top Picks tab: using the Dublin Core metadata record's conformsTo field or by stating the alignment within the resource content. Within the conformsTo field, a resource is considered a match if the search service finds the corresponding Strand Map Service ID (SMS-BMK-0223). A resource is also considered a match if the search service finds the exact sentences from the benchmark text in any of the resource's metadata fields or within the resource's HTML content after being crawled by NSDL. The NSDL Science Literacy Maps is not able to process ASN IDs at this time.
To align a resource using the conformsTo field, you need to include the corresponding Strand Map Service ID (SMS-BMK-0223) for the resource. After your records are harvested and indexed by NSDL, which can take a few weeks, they will be viewable from the Top Picks tab of the benchmark's information bubble in the Science Literacy Maps. If you are managing your collection using the NSDL Collection System (NCS), they will be available within a few days.
To align a resource using the benchmark text, you need to either include the full sentences from the benchmark text within any of the resource's metadata fields (dct:conformsTo, dc:description, etc) or display it on the resource's HTML page so NSDL can crawl and index the page content. If the benchmark contains multiple sentences, only one of those sentences is required to be present to be a match but the exact wording is required.
Scenario: You want to align a resource to the AAAS benchmark statement All motion is relative to whatever frame of reference is chosen, for there is no motionless frame from which to judge all motion. 4F/H2. This benchmark resides within the Waves map of The Physical Setting chapter.
<dct:conformsTo>All motion is relative to whatever frame of reference is chosen, for there is no motionless frame from which to judge all motion.</dct:conformsTo>
If you are working in the NSDL Collection System (NCS), include the alignment into the conformsTo field in the editor (or the equivalent if you are working in a framework other than Dublin Core), and save the record.
If your collection is being harvested by NSDL, place the records in your OAI data provider to be harvested at the next scheduled interval. After harvesting, allow a few days when they will show up in the Top Picks tab for the benchmark.
If your collection is being managed in the NCS, allow a few days after editing for the records to show up in the Top Picks tab for the benchmark.