Using the LC EAD Schema

As part of the OASIS retirement, Harvard will no longer support a locally developed EAD schema.  As of July 2018, we will be validating against the Library of Congress EAD schema.  In order to make the transition, we need to make changes to our finding aids. Please note: In June 2020 the Library of Congress changed their website URL from http to https.  Earlier versions of finding aids will have the old LC EAD schema link and this link will need to be update in order for finding aids to open automatically.

Here are the steps to follow:

1. Open you finding aid in Notepad or Wordpad (right click on the document and select program from the “open with” option)
2. Identify this opening line of tagging “<?xml version="1.0" encoding="UTF-8"?>” and hit return after the end angle bracket
3. Identify this piece of tagging “<eadheader” and insert a return BEFORE it
4. Taking care not to delete any of the surrounding lines of tag, replace the tagging between the two above identified lines with this tagging:

<ead xmlns="urn:isbn:1-931666-22-9" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:isbn:1-931666-22-9 https://www.loc.gov/ead/ead.xsd">

The tagging you are replacing will look something like one of the following:

     <ead xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://hul.harvard.edu/ois/xml/xsd/oasis/ead2002/ead.xsd">

     <ead digitalLinks="false" fileSize="86031" maxcomponentid="499" xmlns:xlink="http://www.w3.org/1999/xlink">

     <ead digitalLinks="false" fileSize="124555" maxcomponentid="469" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://hul.harvard.edu/ois/xml/xsd/oasis/ead2002/ead.xsd">

    <ead xmlns="urn:isbn:1-931666-22-9" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:isbn:1-931666-22-9 http://www.loc.gov/ead/ead.xsd"> (contains old URL to Library of Congress)

5. Save your document

6. Open the document in XMetaL to make sure the document is still valid.  If the finding aid won’t open or is invalid, ask Paula or Johanna for help

Additionally, please do the following:

1. Replace any locally saved versions of the template you have with the one found here: Harvard University\Schlesinger Library - Documents\MANUSCRIPTS\FINDING AIDS\Finding Aid Templates
   
   
2. Replace any locally saved versions of the schema you may with the version found here: Harvard University\Schlesinger Library - Documents\MANUSCRIPTS\XML\new 2009 schema\LCXlink schema

Browsing for a schema

Occasionally the LOC schema page is down and isn't working as usual. Xmetal will ask you browse for a schema. We keep a local version of the file on the network for this purpose. The file is located here: Harvard University\Schlesinger Library - Documents\MANUSCRIPTS\XML\new 2009 schema\LCXlink schema

Do the following:

1. Open your ead document as usual
2. XMetal will give you a message that you need to browse for a schema or rules file
3. Click okay for this option and follow the following path*:

Harvard University

Schlesinger Library-Documents

MANUSCRIPTS XML

new 2009 schema

LCXlink schema

ead.xsd

*If your Sharepoint is configured differently and this path does not work on your computer, you may want to download a copy of the EAD schema (ead.xsd) and keep it in a folder that you can easily find when you browse, such as your desktop.