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Uploading investigation data to the CSSI DCC Portal allows you to curate, manage, and reuse datasets in a standards-compliant way. The ISA-TAB Tab specification
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An ISA -TAB archive file is a compressed (.ZIPzip) file containing multiple text files and data files. Each tab-delimited text file in an ISA -TAB file archive describes the structure, meaning the column headers and row values when considered in spreadsheet format, of the investigation, study, and assay components of the archive. The data files correspond to each assay and are included in the archive in their native format, for example, Microsoft Excel. An ISA -TAB archive file may also contain images and other files.
Only users who have registered for and logged in to the CSSI DCC Portal can upload investigation data.
Registering to Use the CSSI DCC Portal
Before you can log in for the first time, you must register.
To register on the CSSI DCC Portal
- Navigate to the CSSI DCC Portal.
The home page appears. - Click Login.
The Please Sign In page appears. - Click Register.
The Registration page appears. - Provide information in all of the following required fields:
- First name
- Last name
- Institution
- Email address
- Password
- Confirm password
- If you want to upload investigation data to the CSSI DCC portal in the future, select the I would like to upload investigation data box. Doing so ensures that your future submissions are correctly tracked.
- Select the I'm not a robot box.
- Click Register.
A message box appears. - Check your inbox for an email with the subject line "CSSI DCC Account Activation." Click the link in the email to complete account activation.
- Get started using the CSSI DCC Portal.
Logging In to the CSSI DCC Portal
Before you can upload investigation data, you must register and then log in.
You do not need to log in to browse, search, and download investigation data.
To log in to the CSSI DCC Portal
- Navigate to the CSSI DCC Portal.
The home page appears. - Click Login.
The Please Sign In page appears. - Enter your email address and password you specified when you registered.
- Click Sign In.
The CSSI DCC Portal home page appears.
Uploading ISA-TAB Files
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Files that you upload to the portal must be in one of the following archive formats: Also, before uploading files <ask about preparation, verification> |
To upload ISA-TAB files
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Click New Project.
The Project Properties page appears.
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A project is simply a container for the ISA-TAB file. It allows you to track multiple versions of ISA-TAB file uploads to this project. It is a best practice for each investigation to have its own project. |
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Click Save Project.
The new project is listed under Investigation Projects.
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If the File Upload section of the page is not visible, click Open next to the project name to show it. |
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If needed now or later, click Edit to change the project name. Depending on your privileges, you may not see the Delete button. |
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Select the file you want to upload to this project in one of the following ways:
Drag and drop the ISA-TAB archive file from your computer to the Drop your files here box surrounded by the dashed lines:
Click the Drop your files here box image and browse to where the file is stored.
Info ISA-TAB files that you upload must be in
.zip
format. The file can be no larger than 20 GB.
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- Uploading
- Processing Queued
- Queued
- Preparing uploaded files
- Parsing ISA TAB Metadata
- Preparing Data Files
- Validating assay files and file sizes
- File processed successfully
Success: file processed successfully
Info You may encounter an upload error. A sample error message follows:
Missing Data Files: File processed successfully. 1 files referenced in the assay(s) were not found. Click here to view the missing file lists (limited to 1000 entries each).
The CSSI DCC Portal validates uploaded ISA-TAB files usingstandards and conventions described in the ISA-TAB specification
. The ISA tools siteMultiexcerpt include MultiExcerptName ExitDisclaimer nopanel true PageWithExcerpt wikicontent:Exit Disclaimer to Include
provides additional technical information about validating ISA-TAB files.Multiexcerpt include MultiExcerptName ExitDisclaimer nopanel true PageWithExcerpt wikicontent:Exit Disclaimer to Include
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The first time you upload an ISA TAB file to a new project, it is the first version of that file. It is a best practice to associate only one investigation with a project. You can upload multiple versions of an ISA-TAB file to that project. You may want to do this if you change your investigation data or need to fix it due to an upload error. Each time you upload a new ISA TAB file to a project, the version number increases by one. |
You are now ready to publish the ISA-TAB file to CSSI DCC.
Publishing ISA-TAB Files to CSSI DCC
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Uploading investigation data requires a logged-in CSSI DCC user account with permission to upload. For details on requesting permission to upload data, refer to Managing Your Account.
You can upload a single ISA archive and save it to a folder. If you need an administrator to delete an investigation version from a folder, contact the Center for Strategic Initiatives (CSSI) Data Coordinating Center (https://cssi-dcc.nci.nih.gov/cssiportal/contactus) or click the Contact Us link at the bottom of any DCC page.
The following page family describes how to upload investigation data and request open access for your uploaded data.
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Unpublishing ISA-Tab Files After publishing a file, you may want to unpublish a version of it to remove that version completely from the CSSI DCC server.
To unpublish an ISA-Tab file
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