The call-by-need lambda calculus provides an equational framework for reasoning syntactically about lazy evaluation. This paper examines its operational characteristics. By a seri...
WS-SecurityPolicy is a declarative configuration language for driving web services security mechanisms. We describe a formal sefor WS-SecurityPolicy, and propose a more abstract ...
We study the specification of access control policy in large-scale distributed systems. Our work on real-world policies has shown that standard policy idioms such as role hierarc...
We present a formal specification of unCurrying for a higher-order, functional language with ML-style let-polymorphism. This specification supports the general unCurrying of func...
Typed -calculus is an important tool in programming language research because it provides an extensible framework for studying language features both in isolation and in their rel...