Developing Autonomic and Secure Virtual Organisations with Chemical Programming

International audienc

Embedded Systems Unsuitable for Object Orientation

Abstract. It is argued that the current focus on object technology is detrimental to progress in embedded systems. The core of the problem is that object orientation is fine for analysis but does not answer the design needs. Solutions for shortcomings are sought within the OO dogma, making things worse. This paper will outline a different approach and will discuss benefits of that approach relative to object orientation.

Compiling constraint handling rules into Prolog with attributed variables

1 Introduction In the beginning of constraint logic programming (CLP), constraint solving was "hard-wired " in a built-in constraint solver written in a low-level language. While efficient, this so-called "black-box " approach makes it hard to modify a solver or build a solver over a new domain, let alone debug, reason about and analyze it. This is a problem, since one lesson learned from practical applications is that constraints are often heterogeneous and application-specific. Consequently, several proposals have been made to allow more for flexibility and customization of constraint systems ("glass-box " or even "no-box " approaches):- Demons, forward rules and conditionals in CHIP [6] allow the definition o