Current approaches to refactoring automation [1] are focused on finding and applying each individual transformation step. When decided which and where a refactoring opportunity exists, development tools are used to automatically apply the refactoring and test its effects. This kind of methodologies are directed to improve certain design characteristics. In some cases deeper redesigning is neede...

1 Department of AI, Vrije Universiteit Amsterdam, The Netherlands, [email protected] 2 Illyan Amsterdam, The Netherlands {mkentrop, mleenaarts}@illyan.nl 3 Initi8 Rotterdam, The Netherlands {melis, miller}@initi8.nl Abstract This paper presents the engineering and development process of a software tool (APPROACH) that is designed for decentralised rotation planning for container barges in the port...

In this paper knowledge representation and inference issues for rule-based systems are discussed. The paper deals with improving the logical calculus of Set Attributive Logic founding an expressive rule language XTT. Representation extensions are introduced, and practical inference rules provided. The original includes an extended state specification, as well as interpreter design. Examples of ...

The quest for the formal certification of properties of security protocols is one of the most challenging research issues in the field of formal methods. It requires the development of formal models together with effective verification techniques, methods of detecting malicious behaviour, and so on. In this paper, we describes a formal methodology for verifying cryptographic protocols based on ...

The paper is devoted to the mutation testing technique that is widely used when testing different software tools. A short survey of existing methods and tools for mutation testing is presented in the paper. We classify existing methods: some of them rely on injecting bugs into a program under test while other use a formal model of the software in order to inject errors. We also provide a short ...

by Alfred Aho, Sean Gallagher, Nancy Griffeth, Cynthia Schell, and Deborah Swayne Abstract We describe a language called Chisel and an editing tool for Chisel called Sculptor for defining requirements for communications services. The purpose of Sculptor and Chisel is to speed the service creation process by improving communication between organizations, by automating tedious manual work, and by...

There are many existing software tools for identifying specific and severe IT security threats (virus checkers, firewalls). But it is more difficult to detect less severe and more general problems, such as disclosure of sensitive or private data. In theory, security problems could be detected with existing tools, but the amount of information provided is often too overwhelming. FCA is a promisi...

Engineers use software tools to model and analyze designs for critical systems. Because important design decisions are based on tool results, tools must provide valid modeling constructs; engineers must understand them to validate their models; and tools must implement these constructs without significant error. Such tools thus demand careful conceptual and software design. An important aspect ...

This paper is a tutorial on performing formal specification and semi-automatic verification of Java programs with the formal software development tool KeY. This tutorial aims to fill the gap between elementary introductions using toy examples and state-of-art case studies by going through a self-contained, yet non-trivial, example. It is hoped that this contributes to explain the problems encou...

This paper presents a projection-based approach for solving conic feasibility problems. To find a point in the intersection of a cone and an affine subspace, we simply project a point onto this intersection. This projection is computed by dual algorithms operating a sequence of projections onto the cone, and generalizing the alternating projection method. We release an easy-to-use Matlab packag...