SSampMA for SubClass D Missions Steve Jara NASA Ames System Safety amp Mission Assurance Division SSampMA A set of system safety and quality management processes that minimize the risk associated with each system and phase of a projects life cycle They are normally executed ID: 412046
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System Safety & Mission Assurance (SS&MA) for Sub-Class D Missions
Steve
Jara
NASA Ames System Safety & Mission Assurance DivisionSlide2
SS&MA: A set of system safety and quality management processes that minimize the risk associated with each system and phase of a project’s life cycle. They are normally executed by/with:
Independent experts (not responsible for the project’s cost/schedule)
A high degree of independent verification & validation (
V&V
)
A flow-down of requirements throughout the supply chain
A closed-loop root cause analysis based corrective action system
A de-emphasis on their impact to project cost & schedule Slide3
Sub-Class D Missions: Low budget fast paced projects executed under a set of streamlined processes aimed at mitigating only the most significant risks to mission success. They are normally executed by/with:
An atmosphere of innovation & creativity
Cross-trained thinly spread teams (with limited oversight)
A high percentage of COTS & low heritage parts
A high degree of reliance on vendor
SS&MA
processes
An open-loop “make-it-work” corrective action system
An emphasis on cost & scheduleSlide4
Why apply SS&MA on Sub-Class D Missions?
Traditional arguments against:
Stifles innovation & creativity (rules based)
Too costly & time consuming
Unnecessary when risk of mission failure is acceptable
The real story;
SS&MA
is critical to mission success:
Tailorable
, flexible, & identifies where rules are good enough or where innovation is required
Cost can be limited to initial risk assessments followed by the mitigation of the most significant risk
Ensures projects allocate their limited resources judiciously and intelligently
Mission failure is not acceptable due to blindly/poorly applied
processes; SS&MA provides critical insight & intelligenceSlide5
Specifically, with respect to safety, SS&MAHelps project’s understand & comply with applicable safety requirements
Range
Payload Safety Working Group
Launch provider (via Interface Control Documents)
Generates required safety documents
Verifies supporting evidence and closure to supporting documents
Champions a safe working environment during all phase of the project life cycleSlide6
Specifically, with respect to mission assurance, SS&MAHelps project’s understand & comply with applicable quality requirements, including but not limited to:
ISO9001
/
AS9100
Quality Management
Workmanship
EEE
parts
Generates required quality documents
Verifies supporting evidence and closure to supporting documents
Champions a “do it right the first time” working environment during all phases of the project life cycleSlide7
SS&MA during hardware fabrication & assemblySS&MA supports hazard report verification and closure
Supports inspections to verify controls required by hazard reports
SS&MA
helps determine areas that require additional oversight (prioritizing safety over mission success)
Apply an “eyes wide open”
SS&MA
approach; mission success builds upon rather than undermines safety requirements
Establish the level of risk the project
while not compromising
safety
Creative thinking outside the box is acceptable after
safety
definitions
and design are
understood
Workmanship standards are not mandatory for electronic assemblies and COTs unless project (based on
SS&MA
recommendation) deems necessarySlide8
SS&MA during environmental testing: Environmental testing closes many V&V requirements in interface ICD, safety compliance, range safety, and Payload Safety Review Panel (PSRP
) documents
SS&MA should witness each test (including the test set-up) and requirements closing; this ensures each applicable requirement is verified without unnecessary expenditure of time or resources
This ensures that all questions and/or
RIDs
/
RFAs
generated during technical reviews are addressed such that open items and hazard reports can be closed without having to repeat a testSlide9
Fitting SS&MA within a Sub-Class D mission’s budget & scheduleEmbed/integrate
SS&MA
into all project elements & phases
Cross-train key project personnel in basic SS&MA principles
Hold everyone responsible for
SS&MA
Ensure
SS&MA
is a topic during all project meetings & reviews
Use of peer reviews should be employed to compensate for the lack of independence (when a dedicated SS&MA lead is unavailable)
Appoint one individual as the
SS&MA
lead
May be independent & exclusive or a project member with other responsibilities (i.e., systems engineer, discipline lead, etc.)
If not independent & exclusive, the project should use
SMEs
from the
SS&MA
organization as consultants and peer reviewers
The SS&MA lead should work project-wide SS&MA issues
Should assess & prioritize the order in & degree to which
SS&MA
actions are implemented based on project risk, phase, schedule, & budgetSlide10
Lesson Learned (optimizing SS&MA)Documentation must be readable and easily understandable
Streamlining and reducing the amount of documents will save time and can aid in their readability (i.e.,
omit all boiler plate and unnecessary information)
Invest the effort to develop a high fidelity concept of operations description
Shows how each subsystem of the design helps meet the mission goals
Minimizes potential mismatches between system materials and the mission environment(s)
Provides a mission-wide starting point for all hazard analyses
Minimizes the possibility of designing and building to unverifiable requirements
Research, understand, and plan to comply with the safety requirements early
The requirements are defined and the process is clear (e.g., range,
PSRP
)
Leverage the expertise of the groups the project must interface with to meet safety and design requirements
PSRP
, Range Safety, vehicle provider, and others can help clarify and understand requirements
They do this all the time and can save a project from doing unnecessary work: ask for their lesson learned and best practices
And most importantly it establishes their buy-in and support, making the task of presenting a compliance argument to them relatively easier