17,788 research outputs found
An experimental Study using ACSL and Frama-C to formulate and verify Low-Level Requirements from a DO-178C compliant Avionics Project
Safety critical avionics software is a natural application area for formal
verification. This is reflected in the formal method's inclusion into the
certification guideline DO-178C and its formal methods supplement DO-333.
Airbus and Dassault-Aviation, for example, have conducted studies in using
formal verification. A large German national research project, Verisoft XT,
also examined the application of formal methods in the avionics domain.
However, formal methods are not yet mainstream, and it is questionable if
formal verification, especially formal deduction, can be integrated into the
software development processes of a resource constrained small or medium
enterprise (SME). ESG, a Munich based medium sized company, has conducted a
small experimental study on the application of formal verification on a small
portion of a real avionics project. The low level specification of a software
function was formalized with ACSL, and the corresponding source code was
partially verified using Frama-C and the WP plugin, with Alt-Ergo as automated
prover.
We established a couple of criteria which a method should meet to be fit for
purpose for industrial use in SME, and evaluated these criteria with the
experience gathered by using ACSL with Frama-C on a real world example. The
paper reports on the results of this study but also highlights some issues
regarding the method in general which, in our view, will typically arise when
using the method in the domain of embedded real-time programming.Comment: In Proceedings F-IDE 2015, arXiv:1508.0338
Spacelab software development and integration concepts study report, volume 1
The proposed software guidelines to be followed by the European Space Research Organization in the development of software for the Spacelab being developed for use as a payload for the space shuttle are documented. Concepts, techniques, and tools needed to assure the success of a programming project are defined as they relate to operation of the data management subsystem, support of experiments and space applications, use with ground support equipment, and for integration testing
Top down, bottom up structured programming and program structuring
New design and programming techniques for shuttle software. Based on previous Apollo experience, recommendations are made to apply top-down structured programming techniques to shuttle software. New software verification techniques for large software systems are recommended. HAL, the higher order language selected for the shuttle flight code, is discussed and found to be adequate for implementing these techniques. Recommendations are made to apply the workable combination of top-down, bottom-up methods in the management of shuttle software. Program structuring is discussed relevant to both programming and management techniques
COST Action IC 1402 ArVI: Runtime Verification Beyond Monitoring -- Activity Report of Working Group 1
This report presents the activities of the first working group of the COST
Action ArVI, Runtime Verification beyond Monitoring. The report aims to provide
an overview of some of the major core aspects involved in Runtime Verification.
Runtime Verification is the field of research dedicated to the analysis of
system executions. It is often seen as a discipline that studies how a system
run satisfies or violates correctness properties. The report exposes a taxonomy
of Runtime Verification (RV) presenting the terminology involved with the main
concepts of the field. The report also develops the concept of instrumentation,
the various ways to instrument systems, and the fundamental role of
instrumentation in designing an RV framework. We also discuss how RV interplays
with other verification techniques such as model-checking, deductive
verification, model learning, testing, and runtime assertion checking. Finally,
we propose challenges in monitoring quantitative and statistical data beyond
detecting property violation
Systems engineering and integration and management for manned space flight programs
This paper discusses the history of SE&I management of the overall program architecture, organizational structure and the relationship of SE&I to other program organizational elements. A brief discussion of the method of executing the SE&I process, a summary of some of the major lessons learned, and identification of things that have proven successful are included
Model-based dependability analysis : state-of-the-art, challenges and future outlook
Abstract: Over the past two decades, the study of model-based dependability analysis has gathered significant research interest. Different approaches have been developed to automate and address various limitations of classical dependability techniques to contend with the increasing complexity and challenges of modern safety-critical system. Two leading paradigms have emerged, one which constructs predictive system failure models from component failure models compositionally using the topology of the system. The other utilizes design models - typically state automata - to explore system behaviour through fault injection. This paper reviews a number of prominent techniques under these two paradigms, and provides an insight into their working mechanism, applicability, strengths and challenges, as well as recent developments within these fields. We also discuss the emerging trends on integrated approaches and advanced analysis capabilities. Lastly, we outline the future outlook for model-based dependability analysis
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