TLA+ is a formal language for specifying systems, including distributed algorithms, that is
supported by powerful verification tools. In this work we present a framework for checking if …

Distributed protocols, an essential part of modern computing infrastructure, are well-known
to be difficult to implement correctly. While lightweight formal methods such as TLA+ can be …

Newer systems are still tested and validated following techniques which have been
developed decades ago when systems were of a different nature. We report on an attempt to …

We present a case study that illustrates the power of active learning for enabling the
automated quality assurance of complex and distributed evolving systems. We illustrate how …

In multi-agent-based simulation (MABS) the behavior of individual actors is modeled in
detail. The analysis and validation of these models is rated as difficult and requires support …

From operating systems and web browsers to spacecraft, many software systems maintain a
log of events that provides a partial history of execution, supporting post-mortem (or post …

Develo** a business critical system can involve considerable difficulties. This paper
describes part of a new methodology that tackles this problem using co-evolution of models …

Zookeeper atomic broadcast (Zab) is a atomic broadcast protocol specially designed for the
distributed coordination service Zookeeper to support rout recovery. It is widely used in such …

This paper presents a model-based trace testing (MBTT) approach to strengthen verification
and validation techniques for formal co-simulation based wireless sensor network …