Measured Progress uses the IMS APIP and QTI standards enabling clients to create, share, and use assessment content with rich support for accessibility.  With a wealth of accessibility preferences, our clients can tailor, in real-time, the presentation of the question items to fit the accessibility needs of the user.

The Accessible Portable Item Protocol (APIP) v1.0 standard is based on the IMS Question and Test Interoperability (QTI) v2.1 specification. The APIP Standard expands the QTI model into a comprehensive framework that encompasses the requirements for creating accessible tests.

For detailed information on the IMS Global QTI/APIP standards, please visit: http://www.imsglobal.org/apip/

Item Package

Item Packages are defined in the imsmanifest.xml file which is the top-level manifest file that describes the content of the package.

For detailed information on the IMS Content Packaging Information Model, please visit: http://www.imsglobal.org/content/packaging/

Classification Metadata (VDEX)

For detailed information on IMS Global VDEX usage, please visit: http://en.wikipedia.org/wiki/IMS_VDEX

Term Description Data Type Examples
AssetID The AssetID is a unique identifier of an item, stimulus/passage, Cluster or MIC (Miscellaneous Item Content) within the Measured Progress Item Authoring system Alphanumeric 123456A
GradeLevel The grade, grade span, or course name for which the item is written Client Specific Alpha, Numeric, or Alphanumeric, or Test Grade 3 or 03Grades 3-4 or 3-4Biology
Subject The curricular subject or content area for which the item is written Text MathematicsEnglish Language Arts
ClientItemTypeAbbreviation The client-specific, abbreviated form of the item type name Alpha MC = Multiple ChoiceSR = Short ResponseSA = Short Answer

CR = Constructed Response

SampleType The psychometric function the item performs in the test design Text Common – used for scoringMatrix – an embedded field test item, Field Test/Pilot
IsEquatable Indicator of whether the item is being used for equating or not Alpha Y/N
PassageType ELA Curriculum Standard category for which a reading selection is designed to test Text LiteraryInformational
IsFlawed Information related to a problem/flawed item Text Flawed Status: Not Flawed, Flawed, Under reviewRationale: Publishing Error, Content Error, Bad Statistics, Asset Misaligned to Standard, otherPIN: Problem Item Notice #

Score this Asset: Y/N

Explanation: Text field 1500 characters

Recommended Action: Reject, Reuse

IsReleased Is the item released for public viewing Text Not ReleasedNever ReleaseRelease Pending


CalculatorStatus Denotes the appropriate calculator designation for the Asset Text N/ACalcNon Calc



LegacyItemId Field for item id, if item was originally developed in a different system so we have the link to the id from original system N/A N/A
PassageGenre Self-Explanatory Text BiographyFictionFolktale/mythology







PassageLength Self-Explanatory Text LongMediumShort
Our rubric blocks have an HTML DIV element as their first child and they have a class attribute with one of the following names:
sample_response Notes for scoring student responses tagged as <div class="sample_response">, within the <rubricBlock> found in the item XML.
training_notes An example of responses and tagged as <div class="training_notes">, within the <rubricBlock> found in the item XML.
rubric A matrix/table that describes the expectations of quality around a task and distribution of score points in a short answer or constructed response item. It is tagged as <rubricBlock> and found in the item XML.


We support passages as follows – For clusters, an assessment section is created and the passages (rubric blocks) are included in the assessment sections via XInclude (http://www.w3.org/TR/xinclude/).

They are generally followed by items (assessmentItemRef elements). For example:

Assessment SectionXInclude -> a file containing a rubric block with the passage HTML inside.Assessment Item Ref

Assessment Item Ref

Image Format

Images associated with items or passages in the QTI-XML files are predominantly in the Scalable Vector Graphics (SVG) file format.

For detailed information on Scalable Vector Graphics, please visit: http://www.imsglobal.org/accessibility/accessiblevers/

Equation Format

Equations provided in the QTI-XML files associated with mathematics items can be presented as images or as MathML (see above for image formats).

Process Framework – Depth of Knowledge (DOK)

DepthOfKnowledge: is the code for the specific level within the framework associated with the levels of understanding required to correctly respond to questions of varying degrees of complexity, tagged as <curriculumStandardsMetadata> in the imsmanifest.xml.