No abstract

No abstract

The Department o f Defense Trusted Computer System Evaluation C r i t e r i a (TCSEC) establishes a requirement f o r formal v e r i f i c a t i o n a c t i v i t i e s o f a TCB designed f o r Mandatory o r V e r i f i e d Protection [l]. As a r e s u l t , formal v e r i f i c a t i o n has become an i n t e g r a l p a r t o f todays t r u s t e d systems development w i t h i n t h e DoD C31 community. Design engineers must commit t o a broader understanding o f v e r i f i c a t i o n issues and be a c t i v e p a r t i c i p a n t s i n t h e v e r i f i c a t i o n process.

No abstract

The MITRE Corporation is investigating the benefits of using optimization models to represent and improve national air traffic flow management f o r the Federal Aviation Administration ( F A A ) . Review of transportation and optimization literature yielded no techniques that had been or could be directly applied tc cir traffic management on a nationwide scale. The literature search did identifr some promising approaches. This paper outlines necessary criteria for modeling traflc management in the National Airspace System (NAS) and summarizes the strengths and weaknesses of the most relevant models and techniques in terms of those criteria.