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 You are here » Download Documents » NDM-U

Document Releases

Network Data Management - Usage (NDM-U) Specification, Version 3.1.1

Download your free copy of the NDM-U Technical Specification Version 3.1.1

Download IPDR.org Service Specifications

This production-ready standard is the culmination of 2+ years work by IPDR.org member companies, staff and specialized contractors. Also referred to as the IPDR standard, it delivers on the vision of IPDR.org founders and gives the industry a ready-to-deploy record format for next-generation services. NDM-U 3.1 features the following improvements and benefits:

  • Multi-Service Support - The NDM-U v2.0 and up supports multiple classes of service (from access to applications). Thanks to "Service Specifications" and schemas for each, the industry can agree on a well-defined record and do correlation across service types.
  • Human and Machine Readable - v3.0 and up permit both binary (XDR) and XML encodings. This means that data can be made available to partners or integrators in human-readable mode, but compacted by a factor of 5 for high-volume production.
  • Vendor Extensibility - Traditional CDR's permit vendors to make proprietary extensions. Unfortunately, they remain just that - proprietary. IPDR schemas permit vendors to make extensions to standard "Service Specifications" and publish the extension so that other applications can automatically support them.
  • Capabilities Discovery - The NDM-U permits vendor systems to query each other for details of their IPDR support and to dynamically adapt.

Click here for access to the following past versions of the NDM-U specfication.

  • NDM-U Technical Specification Version 2.0
  • NDM-U Technical Specification Version 2.5
  • NDM-U Technical Specification Version 2.6
  • NDM-U Technical Specification Version 3.0
  • NDM-U Technical Specification Version 3.1

What We Need from You
IPDR.org would appreciate the following feedback from the readers of the NDM-U specification:

Comments, contributions, and insights relative to the clarity, meaning, and usefulness of the specification can be made via E-mail to comments@ipdr.org

Please provide a description of any implementation experiences you have had using the specification. The evolution of this document depends on those who are utilizing its contents in the every day work environment. By sharing your experiences, IPDR.org can better identify the future direction and the past usefulness of the document. This information can be sent via E-mail to comments@ipdr.org.

If you are interested in contributing or assisting in the next release of the NDM-U specification, contact Ken Sarno, IPDR.org Technical Director, via E-mail at kensarno@ipdr.org. Work needs to be done in the areas of transport mechanisms, description of new services, service activation and provisioning, and interoperability testing. Your time and expertise will be greatly appreciated.

Join IPDR.org if your company is not already a member. The membership program is structured to accommodate any company regardless of size and financial capability. For more information, on membership, click here.