Scope of ActivityDefinition of cross support space communications architecture. Rationale for ActivityCCSDS has many recommendations that range from very specific physical spacelink protocols to (an eventual) routed space internetworked environment. CCSD offers no guidance as to how the broad set of recommendations fit together and more importantly what are the best approaches with regard to the various options identified in the various recommendations. A cross support architecture definition is needed. This will benefit CCSDS member agencies by providing a ready reference and guide for implementation of services that more often than not involve many aspects of standardization.GoalsThe goals of the Working Group are development of:
1) A reference model that includes the concept and the detailed technical rationale for a normative Space Communication Architecture, and
2) Space Communication Cross Support Architecture normative recommended practice that
a) Identifies the cross support forward and return services including, but not necessarily limited to the following classes of data
i. Telemetry,
ii. Telecommand,
iii. Radiometric (Raw and Processed)
iv. Audio,
v. Video,
vi. Time correlation and synchronization;
b) Identifies the management functions including, but not necessarily limited to
i. Mission Support Planning,
ii. Mission Service Agreement,
iii. Service Package Management, include service package execution monitoring and control,
iv. Service Delivery Assessment and Accounting;
c) Offers various views to fully describe the architecture, including, but not necessarily limited to
i. Physical View
ii. Communication View
iii. Service View
iv. Information View
v. Enterprise View
d) Defines a framework for addition or modification of services offered;
e) Is coordinated with the CSS CSTS and CSSM draft recommendations;
f) Addresses the above, as applicable, from both a link-layer and inter-networked cross support perspectives.
Survey of Similar Work Undertaken in Other BodiesInteragency Operations Advisory Group (IOAG)
DRAFT GUIDANCE DOCUMENT FOR
SPACE OPERATIONS STANDARDS
CROSS SUPPORT SERVICE ARCHITECTURE
(June 2007)
Patent Licensing Applicability for Future Standards
There are no patents and associated licensing concerns. Technical Risk Mitigation StrategyFrom a technical perspective the most significant risk is the scoping and attainment of common conceptual models among the participants of the various agencies. . Alignment of the architecture definition with scenarios and use cases from member agencies and IOAG serves as a risk mitigation.
The demonstration that the scenarios and use cases are accommodated within the architecture will help validate the architecture developed. Furthermore, it is expected that each agency will check that the standards developed are technically applicable with respect to processes, political environment, and current implementation and future implementation plans.
Management Risk Mitigation StrategyLack of resources or reassignment of previously-committed personnel is a constant risk to all standards-making processes. Risk for this WG is minimized by keeping the number deliverables to a minimum, i.e. one Green Book and one Magenta Book.
Approved Projects |