A core programming language is presented that allows structural recursion over open LF objects and contexts. The main technical tool is a coverage checking algorithm that also generates valid recursive calls. Termination of call-byvalue reduction is proven using a reducibility semantics. This establishes consistency and allows the implementation of proofs about LF specifications as well-founded...

This paper introduces MetTeL2, a tableau prover generator producing Java code from the specifications of a logical syntax and a tableau calculus. It is intended to provide an easy to use system for nontechnical users and allow technical users to extend the implementation of generated provers.

This paper provides a general technical overview of the Multimedia Home Platform (MHP) specifications. MHP is a generic interface between digital applications and user machines, whether they happen to be set top boxes, digital TV sets or Multimedia Pc’s. MHP extends the DVB open standards. Addressed are MHP architecture, System core, and MHP Profiles.

The cost of knowledge characteristic function was introduced by Card, Pirolli and Mackinlay in 1994 as a design tool. This paper explores the value of deriving the function from system specifications. Automating the process enables technical designers (programmers) to see usability issues.

This article discusses several key provisions and concepts in software license agreements for electronic health records. It offers insight into what physician practices can expect to find in their license agreements, as well as practical advice on beneficial provisions. The article examines contractual language relating to term and termination, technical specifications and support, and complian...

The ideas of object orientation are convenient to describe complex technical systems. This paper describes how an adaptive controller is conveniently structured in this way. This approach is flexible and safe. It also permits reuse and easy modification of models through the mechanisms of inheritance and specifications. The particular implementation is based on the language Omola and the intera...