Defense Advanced Research Projects AgencyTagged Content List

Systems of Systems

Related to new capabilities based on synergy among multiple diverse systems

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Today, the expeditious delivery of electronic documents, messages, and other data is relied on for everything from communications to navigation. As the near instantaneous exchange of information has increased in volume, so has the variety of electronic data formats–from images and videos to text and maps. Verifying the trustworthiness and provenance of this mountain of electronic information is an exceedingly difficult task as individuals and organizations routinely engage with data shared by unauthenticated and potentially compromised sources.
The sophistication of autonomous systems currently being developed across various domains and industries has markedly increased in recent years, due in large part to advances in computing, modeling, sensing, and other technologies. While much of the technology that has enabled this technical revolution has moved forward expeditiously, formal safety assurances for these systems still lag behind.
Today, code for input data validation is typically written manually in an ad-hoc manner. For commonly-used electronic data formats, input validation is, at a minimum, a problem of scale whereby specifications of these formats comprise hundreds to thousands of pages. Input validation thus translates to thousands or more conditions to be checked against the input data before the data can be safely processed.