Project Title

Functional Resource Model



Document Number



3.06 Cross Support Transfer Services Working Group

Document Type


Description of Document

The Functional Resource Model Recommended Practice (a) defines the concepts and organizing principles of Functional Resources, (b) identifies the sets of functional resources needed to model the functions of an Earth Space Link Terminal (ESLT, commonly known as a ground station), (c) specifies the behavior of each of the Functional Resources, and (d) provides the necessary linkages into the SANA Functional Resource registry, which defines the set of parameters, events, and directives for each Functional Resource and assigns Object Identifiers to each of them. The concept of Functional Resources is fundamental to Cross Support Service Management (CSSM) and to several CSTSes. Functional Resources are abstract, standardized representations of the behavior, parameters, events, and directives of systems that conform to various Recommended Standards and other international standards relevant to space communications and navigation. Functional Resources are the building blocks for the definition of cross support service configurations, and they define the standardized monitored data that can be obtained regarding such service configurations.

Applicable Patents

There are no patent issues for this technology that are known by the CCSDS community

Patent Comments

Survey of Similar Standards
Documents or Projects
Undertaken in Other Bodies
and elsewhere in CCSDS

The concept of Functional Resources is inspired by the managed objects of the Internet Protocol Suiteā€™s Simple Network Management Protocol (SNMP) and ISO Open Systems Interconnection (OSI) Systems Management. As with those non-CCSDS standards, Functional Resources make extensive use of ISO Object Identifiers for formal and globally-unique identification.


Book Editor


Book Editor Resources

1.4 person-month

Prototype 1

Prototype 1 Resources

Prototype 2

Prototype 2 Resources

Prototype 3

Prototype 3 Resources



Monitor Only

Resource Comments


Legend for Schedule Milestones
Orange Bullet = Required for Orange Books
Green Bullet = Required for Green Books
Magenta Bullet = Required for Magenta Books
Blue Bullet = Required for Blue Books
Note - Red Books are Draft Blue/Magenta Books

Schedule Milestones
Orange BookGreen BookMagenta BookBlue Book
Original Completion Date
(Date in M/D/YYYY format.)
(Date in M/D/YYYY format.)
Project ApprovedOrange BulletGreen BulletMagenta BulletBlue Bullet11/5/2020
Project Start DateOrange BulletGreen BulletMagenta BulletBlue Bullet12/1/2020
Internal WG Review
First Draft Circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet2/15/2021
First Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet4/15/2021
Second draft circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet6/15/2021
Second Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet7/15/2021
Final WB Submitted to AD for Further ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet9/1/2021
External Milestones
Secretariat Document ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet10/15/2021
First Agency ReviewMagenta BulletBlue Bullet12/15/2021
RID ResolutionMagenta BulletBlue Bullet4/15/2022
Secretariat Document Processing 2Magenta BulletBlue Bullet6/1/2022
Final Agency ReviewMagenta BulletBlue Bullet
RID ResolutionMagenta BulletBlue Bullet
First Prototype DevelopmentBlue Bullet
Second Prototype DevelopmentBlue Bullet
CMC ApprovalOrange BulletGreen BulletMagenta BulletBlue Bullet6/30/2022
Total Time to Complete
(in months)
Version: 147.0
Created at 11/16/2020 5:24 AM by Holger Dreihahn
Last modified at 10/21/2022 5:31 AM by Erik Barkley