Home' RTCA Documents for Review : C2 Link Systems MASPS_Draft Contents Appendix A
© 2018, RTCA, Inc.
APPENDIX A CONCEPT OF OPERATIONS
The approach taken to create this MASPS was based on following the key principles of
Systems Engineering (SE) as defined by National Aeronautics and Space Administration
System Engineering is the application of a systematic, disciplined
engineering approach that is quantifiable, recursive, iterative,
and repeatable for the development, operation, maintenance, and
disposal of systems integrated into a whole throughout the life
cycle of a project or program. The emphasis of systems
engineering is on safely achieving stakeholder functional,
physical, and operational performance requirements in the
intended use environments over the system's planned life within
cost and schedule constraints .
The italicized words in the excerpt from the NASA document are the key activities of the
SE process followed and explained within this Concept of Operations (CONOPS), the
Operational Services and Environment Definition (OSED), Operational Safety Assessment
(OSA), and the Operational Performance Assessment (OPA) appendices of this MASPS.
These SE activities are described in the following paragraphs.
The development of the MASPS requirements included multiple iterations of the various
analyses (OSED, OSA, and OPA) wherein each new iteration expanded our knowledge of
how “best” to address the UAS stakeholders’ requirements, goals, and constraints (to
include assumptions). The development of the MASPS’s OSA and OPA safety and
performance requirements will be described within the OSA and OPA appendices and are
to be measurable and thus quantifiable. The performance analysis results are to be
repeatable and allow the same process to be used by others, i.e., the process is recursive.
This appendix describes the systematic, disciplined engineering approach used as it
addresses the standards needed for effective development, operation, maintenance, and
disposal of the C2 Link System. Although most of the CONOPS, OSED, OSA, and OPA
appendices will focus on the operational and functional aspects, the physical (system)
aspects will also be addressed within the CONOPS and OSED and eventually within a link-
specific MOPS. This CONOPS also addresses the needs of the life cycle aspects, the
impacts on/from other subsystems in the whole UAS, and the other systems as the UAS
operates in the U.S. airspace (i.e., the project or program).
The scope of the safety concerns will be defined in the OSED and then expanded within
the OSA. Within this CONOPS, the various stakeholders will be identified and their
stated. The iterative developments of the physical (system), and
operational views (see below) within the CONOPS and OSED will aid in the conduct of
the OSA and OPA wherein the performance requirements will be developed and
demonstrate how they would help achieve the stakeholders’ requirements and goals. The
intended environments will be outlined in this CONOPS and described in greater detail
1 The Webster Dictionary definition of recursive: “of, relating to, or constituting a procedure that can repeat i tself
2 Although the development of the stakeholders’ goals and constraints is not explicitly stated within the SE
definition, they need to be identified and understood. The identification of s uch goals is stated as being part of the
OSED development per DO-264; also see Section 2.2.1 of the RTCA MASPS Development Guide. This is further
discussed in the OSED appendix.
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