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The Metadata Utility can facilitate the creation of the tab-delimited text files for an ISA archive. This page describes how to save these files for continued development at a later time, or for import into CSSI DCC.

1. Create or import an investigation, as described in one of the following pages:
   • Creating an Investigation
   • Importing an Existing Investigation
2. Add or edit items, as described in one of the following pages:
   • Adding Items
   • Editing Items

3. In the Action panel, click Save ISA TAB Investigation.

   

   The system performs a validation check. 

   • If the investigation fails validation, a message appears requesting your confirmation. If you save the investigation with validation errors, you might not be able to import the resulting investigation file. To save anyway, click Save.
   • After the validation check, a dialog box appears for saving the investigation. Navigate to and select the folder in which you want to save the investigation. The recommended filename for the investigation is i_investigation.txt. Click Save. 

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If you change the filename of a study or assay and then save the investigation, the system creates a new file for the renamed study or assay. If you import an investigation, rename a study or assay, and save the investigation to the same folder, multiple versions copies of your study/assay files remain in your investigation folder, for your reference. If you want to (one copy with the current filename and one copy with each previous filename). 

To create a set of files for import into DCC, consider :

1. Discard copies of study/assay files with old filenames, by saving the investigation to an empty folder.
2. Add your data files to the same folder. 
3. Compress that folder to a file in .zip format. 

For instructions on uploading the resulting ISA archive, refer to Uploading Investigation Data and Making it Open Access.