# Available transformations

Available transforms | Direction | Status
--- | --- | ---
2003-FC-to-2007-06.xsl | upgrade | excellent
2003-FC-to-2008-09.xsl | upgrade | excellent
2007-06-to-2008-02.xsl | upgrade | excellent
2007-06-to-2008-09.xsl | upgrade | excellent
2008-02-to-2008-09.xsl | upgrade | excellent
2008-09-to-2009-09.xsl | upgrade | excellent
2009-09-to-2010-04.xsl | upgrade | excellent
2010-04-to-2010-06.xsl | upgrade | excellent
2010-06-to-2011-06.xsl | upgrade | excellent
2011-06-to-2012-06.xsl | upgrade | excellent
2012-06-to-2013-06.xsl | upgrade | excellent
2013-06-to-2015-01.xsl | upgrade | excellent
2010-06-to-2003-FC.xsl | downgrade | poor (very lossy)
2010-06-to-2008-02.xsl | downgrade | fair (lossy)
2011-06-to-2010-06.xsl | downgrade | good
2012-06-to-2011-06.xsl | downgrade | good
2013-06-to-2012-06.xsl | downgrade | good
2015-01-to-2013-06.xsl | downgrade | good

## Quality of transformations

## Key to quality

- poor (very lossy) - the bare minimum of metadata is preserved to allow image display, all other metadata is lost

- fair (lossy) - a portion of the metadata is preserved, at least enough to display the image and some other data, it will be far from complete however

- good - most information is preserved, it may be possible to do a better job but could be difficult for technical reasons or require custom code not just a transform

- excellent - as much information as possible is preserved, some values can still be lost if there are completely incompatible with the new schema

## Matrix of transformation paths

This shows the sequence of transformations used to convert one version of the schema to another version.