Documentation Error in USDM IG Extension Example 4 (Page 102)

[JBGed]

Summary

There is an error in Example 4 on page 102 of the USDM Implementation Guide. The example demonstrates extending a code class with two array attributes of differing types, but the JSON example is missing required valueInteger properties for the integer array attribute.

Location

• Page: 102
• Example: Example 4 - Extending a code class with array attributes

Issue Description

The provided USDM JSON example shows extension attributes for an intArrayAttribute, but the extension attribute objects are missing the valueInteger property that should contain the actual integer values.

Current (Incorrect) JSON

The example currently shows:

{
  "id": "ExtensionAttributeValue_21",
  "url": "http://cdisc.org/usdm/extensions/extension-2/intArrayAttribute",
  "extensionAttributes": [],
  "instanceType": "ExtensionAttribute"
},
{
  "id": "ExtensionAttributeValue_22",
  "url": "http://cdisc.org/usdm/extensions/extension-2/intArrayAttribute",
  "extensionAttributes": [],
  "instanceType": "ExtensionAttribute"
}

Expected (Correct) JSON

The extension attributes should include the valueInteger property:

{
  "id": "ExtensionAttributeValue_21",
  "url": "http://cdisc.org/usdm/extensions/extension-2/intArrayAttribute",
  "valueInteger": 11,
  "extensionAttributes": [],
  "instanceType": "ExtensionAttribute"
},
{
  "id": "ExtensionAttributeValue_22",
  "url": "http://cdisc.org/usdm/extensions/extension-2/intArrayAttribute",
  "valueInteger": 12,
  "extensionAttributes": [],
  "instanceType": "ExtensionAttribute"
}

Impact

This error makes the example inconsistent with the stated logical equivalence and could mislead implementers about how to properly structure integer array extensions in USDM JSON.