In many systems, items of information have owners associated with them. An owner of an item of information may want the system to enforce a policy that restricts use of that infor...
Condition Data Flow Diagrams (CDFDs) are a formalized notation resulting from the integration of Yourdon Data Flow Diagrams, Petri Nets, and pre-post notation. They are used in th...
Graphic designers and other visual problem solving experts now routinely use computer-based imageediting tools in their work. Recently, attempts have been made to apply learning a...
We describe Elf, a metalanguage for proof manipulation environments that are independent of any particular logical system. Elf is intended for meta-programs such as theorem prover...
Creating and editing source code are tedious and error-prone processes. One important source of errors in editing programs is the failure to correctly adapt a block of copied code...