This paper contains a comparative analysis of three toolsets and associated techniques for development of embedded systems. The comparison is based on the experience acquired by applying the techniques to a common case study. The results of the analysis are being used to design a unified set of tools for embedded systems development.

Significant part of requirements to avionics software can only be tested on target hardware running non-instrumented software. General purpose functional testing toolsets require loading auxiliary software to target avionics devices to perform target-based testing. This work presents a toolset for functional testing of avionics software, aimed at testing without target instrumentation. The toolset supports automatic and human-assisted testing of software running on target avionics device(s) by providing input data through a variety of onboard interface channels and analyzing devices' responses and inter-device communication. Architecture of software and hardware counterparts of the toolset is described. A family of avionics testbenches based on the toolset is considered as an industrial case study. Special attention is paid to toolset application for testing of dependability requirements to avionics systems.

In this paper we present a technology for integration of distributed real-time embedded systems (RTES) based on hardware-in-the loop simulation. The environment to support this technology is described. This environment also enables simulation-based evaluation of RTES architecture on early stages of RTES development.