ISO 23103:2020 pdf download

ISO 23103:2020 pdf download.Space link extension — Cross support transfer service — Specification framework
1.1 PURPOSE
The purpose of this Recommended Standard is to define the various logical components, also known within this Recommended Standard as procedures that are required for specifying Cross Support Transfer Services (CSTSes).
1.2 SCOPE
1.2.1 This Recommended Standard defines, in an abstract manner, a CSTS in terms of:
a) the procedures necessary to provide the service;
b) the states of the service;
c) the behavior of each procedure;
d) the states of the procedures;
e) the operations necessary to constitute the procedures; and
f) the parameters associated with each operation.
1.2.2 It does not specify:
a) individual application services, implementations, or products;
b) the implementation of entities or interfaces within real systems;
c) the methods or technologies required to acquire data;
d) the methods or technologies required to provide a suitable environment for communications; or
e) the management activities required to schedule and configure services.
1.3 APPLICABILITY
1.3.1 APPLICABILITY OF THIS RECOMMENDED STANDARD
This Recommended Standard provides a basis for the specification and development of Cross Support Services that are intended to be used for developing real systems that implement such services. Implementation of a service based on the CSTS procedures defined in this Recommended Standard in a real system additionally requires the availability of a communications service to convey invocations and responses of the CSTS operations between the service user and the service provider.
This Recommended Standard requires that such a communications service provides a reliable protocol, i.e., that it ensures that invocations and responses of operations are transferred: a) in sequence; b) completely and with integrity; c) without duplication; d) with flow control that notifies the application layer in the event of congestion or backpressure; and e) with notification to the application layer in the event that communications between the service user and the service provider are disrupted, possibly resulting in a loss of data. It is the specific intent of this Recommended Standard to define the CSTS independently of any particular communications services, protocols, technologies, or formatting of the data content.
1.3.2 LIMITS OF APPLICABILITY
This Recommended Standard specifies the CSTS procedures that may be used for the definition of Cross Support Transfer Services. It does not intend to specify a Cross Support Transfer Service.
1.4 RATIONALE
The goal of this Recommended Standard is to create a standard for interoperability between various Agencies’ tracking stations or ground data handling systems and the consumers or producers of spacecraft data and related monitor and/or control information.