NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 1 of 1
Technology and Tool Development to Support Safety and Mission Assurance
NTRS Full-Text: Click to View  [PDF Size: 12.2 MB]
Author and Affiliation:
Denney, Ewen(SGT, Inc., Houston, TX, United States)
Pai, Ganesh(SGT, Inc., Houston, TX, United States)
Abstract: The Assurance Case approach is being adopted in a number of safety-mission-critical application domains in the U.S., e.g., medical devices, defense aviation, automotive systems, and, lately, civil aviation. This paradigm refocuses traditional, process-based approaches to assurance on demonstrating explicitly stated assurance goals, emphasizing the use of structured rationale, and concrete product-based evidence as the means for providing justified confidence that systems and software are fit for purpose in safely achieving mission objectives. NASA has also been embracing assurance cases through the concepts of Risk Informed Safety Cases (RISCs), as documented in the NASA System Safety Handbook, and Objective Hierarchies (OHs) as put forth by the Agency's Office of Safety and Mission Assurance (OSMA). This talk will give an overview of the work being performed by the SGT team located at NASA Ames Research Center, in developing technologies and tools to engineer and apply assurance cases in customer projects pertaining to aviation safety. We elaborate how our Assurance Case Automation Toolset (AdvoCATE) has not only extended the state-of-the-art in assurance case research, but also demonstrated its practical utility. We have successfully developed safety assurance cases for a number of Unmanned Aircraft Systems (UAS) operations, which underwent, and passed, scrutiny both by the aviation regulator, i.e., the FAA, as well as the applicable NASA boards for airworthiness and flight safety, flight readiness, and mission readiness. We discuss our efforts in expanding AdvoCATE capabilities to support RISCs and OHs under a project recently funded by OSMA under its Software Assurance Research Program. Finally, we speculate on the applicability of our innovations beyond aviation safety to such endeavors as robotic, and human spaceflight.
Publication Date: Oct 30, 2017
Document ID:
20170011551
(Acquired Dec 13, 2017)
Subject Category: AIR TRANSPORTATION AND SAFETY
Report/Patent Number: ARC-E-DAA-TN48258
Document Type: Oral/Visual Presentation
Meeting Information: Stinger Ghaffarian Technologies (SGT) Technology Day; 30-31 Oct. 2017; Webster, TX; United States
Meeting Sponsor: SGT, Inc.; Houston, TX, United States
Contract/Grant/Task Num: NNA14AA60C
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA, United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Description: 39p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Public use permitted
NASA Terms: AIRCRAFT SAFETY; AIRCRAFT RELIABILITY; UNMANNED AIRCRAFT SYSTEMS; CIVIL AVIATION; AIRCRAFT HAZARDS; TECHNOLOGY UTILIZATION; AUTONOMY; RISK ASSESSMENT; RISK MANAGEMENT; COMPUTER SYSTEMS PROGRAMS; SYSTEM FAILURES; SHORT CIRCUIT CURRENTS; SURVEILLANCE RADAR; AIRSPACE; DECISION MAKING
Other Descriptors: ASSURANCE CASES; SAFETY ASSURANCE; MISSION ASSURANC
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: December 13, 2017
Contact Us