Release: Amazon Mechanical Turk on 2006-08-07

Release Notes>Amazon Mechanical Turk>Release: Amazon Mechanical Turk on 2006 08 07
This release of Amazon Mechanical Turk introduces two new features for creating HITs: XHTML formatted content, and questions hosted on external web sites.


Submitted By: Dan@AWS
Created On: August 5, 2006 12:09 AM GMT
Last Updated: August 7, 2006 9:46 PM GMT

Release Date: 2006-08-07
Latest WSDL/API Version: 2006-06-20

New Features

Feature Description
XHTML Formatted Content in HIT questions

You can now include blocks of "formatted content" in your HIT and Qualification test questions using XHTML markup, such as to include tables, or paragraphs of formatted text. A rich subset of XHTML is supported in a block of formatted content.

A formatted content block can only include formatting for text and images. If you need to apply formatting to the form fields, consider an external question (see below).

HIT questions hosted on an external web site

Instead of a set of questions in a QuestionForm, you can create a HIT that uses a question form hosted by an external web site. Amazon Mechanical Turk will display the web site in a frame in the worker's browser, in the middle of the Mechanical Turk worker interface. When the worker submits your form, the form submits the data back to Mechanical Turk. The external form's fields become the fields in the HIT's answer. Using an external question gives you complete control over the appearance and behavior of the question form.

Be sure your web server can handle a large amount of traffic before using an external question. (For inexpensive high-availability pay-per-use hosting of web page data, consider Amazon S3.)

Same API version

The latest version of the API is still 2006-06-20. This release does not include changes to the core API, only to the QuestionForm schema used to describe HIT questions. Two new schemas describe the format for an external question and for a formatted content block.

The Amazon Mechanical Turk Service Developer Guide for API version 2006-06-20 has been updated to include descriptions of these new features.

Known Issues

Issue Description
External Questions not available in Qualifiation tests At this time, you can only use the External Question feature with HITs. You cannot use an External Question with a Qualification test.

If you have any questions or information regarding a potential bug, please let us know using the "Contact Us" form on the Requester website. Visit, select "FAQ" from the upper-right-hand corner, then select "Contact Us."

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