Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Testing protocols in Internet of Things by a formal passive technique


Protocol conformance and performance testing are two branches of testing designed to determine compliance and performance of protocol implementations to their standard.

Dr. CHE Xiaoping and Dr. MAAG Stephane from Laboratory UMR 5157 of French Centre national de la recherché scientifique (CNRS) focus on converging these two kinds of testing in a same formal approach. After several years of innovative research, they eventually created a formal approach to formally specify conformance and performance requirements.

This is distributed testing architecture.

Credit: ©Science China Press

They successfully applied their approach on Extensible Messaging and Presence Protocol (XMPP) and designed a distributed testing framework for XMPP services. Their work, entitled "Testing protocols in Internet of Things by a formal passive technique", is published in SCIENCE CHINA Information Sciences.2014, Vol 57(3).

Extensible Messaging and Presence Protocol (XMPP) has gained more attention as a communication protocol in Internet of Things (IoT), which is a standardized protocol by Internet Engineering Task Force (IETF) and well established in the Internet.

XMPP is available for commonly used programming languages and device platforms. Several studies have investigated the potentialities of applying XMPP in IoT. With the tendency that XMPP is more and more widely used in many aspects of IoT, the problem of formally testing this protocol in a wireless environment is coming out in the wash.

Some works have tried to test the XMPP protocol under different conditions. However, they either simply evaluate the protocol performance or only test several conformance issues. It is worthwhile to note that conformance and performance testing are often associated within the protocol testing process. They are mainly applied to validate or verify the scalability and reliability of the system.

Many benefits can be brought to the testing process if both inherit from the same approach. Besides, very few works have tried to formalize the performance requirements which are mandatory for accurately testing the performance of protocols.

The main objective of this work is then to propose a passive distributed testing approach, for testing both the conformance and the performance of XMPP under IoT environment, based on the formal testing technique. Although some crucial works have been done in similar testing area, they studied runtime verification of properties expressed either in linear-time temporal logic or in timed linear-time temporal logic.

Different from their works focusing on testing functional properties based on formal models, this work concentrates on formally testing functional and nonfunctional properties without formal models. Also note that, this work is absorbed in the performance testing, not in performance evaluation. While performance evaluation of network protocols focuses on the evaluation of its performance, performance testing approaches aim at testing performance requirements that are expected in the protocol standard.

In this work, formalism is defined to specify conformance and performance requirements of XMPP represented as formulas tested on real protocol traces. Horn clauses based syntax is used in the approach to express properties that are checked on extracted traces. And then, since several protocol requirements need to be tested on different wireless entities, a distributed framework is designed for testing the approach on runtime wireless network execution traces.

The approach has been implemented into a distributed framework which provides the possibility to test individual nodes of a complex network environment. The results from testing several properties on large traces have been obtained with success. The subtesters and global monitor in the approach can intuitively reflect the current conformance and performance requirements conditions.

Some researchers suggested that the authors can work on building a standardized performance testing benchmark system for XMPP protocol in future. In that case, the efficiency and processing capacity of the system when massive subtesters are performed through complex network situations would be the crucial point they need to handle.


See the article:

Xiaoping CHE, Stephane MAAG. Testing protocols in Internet of Things by a formal passive technique. SCIENCE CHINA Information Sciences, 2014, 57(3): 032101(13)

Science China Press Co., Ltd. (SCP) is a scientific journal publishing company of the Chinese Academy of Sciences (CAS). For 60 years, SCP takes its mission to present to the world the best achievements by Chinese scientists on various fields of natural sciences researches.

CHE Xiaoping | Eurek Alert!

More articles from Information Technology:

nachricht Graphene teams up with two-dimensional crystals for faster data communications
06.10.2015 | ICFO-The Institute of Photonic Sciences

nachricht Simple detection of magnetic skyrmions
06.10.2015 | Sonderforschungsbereich 668

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Physicists shrink particle accelerator

Prototype demonstrates feasibility of building terahertz accelerators

An interdisciplinary team of researchers has built the first prototype of a miniature particle accelerator that uses terahertz radiation instead of radio...

Im Focus: Simple detection of magnetic skyrmions

New physical effect: researchers discover a change of electrical resistance in magnetic whirls

At present, tiny magnetic whirls – so called skyrmions – are discussed as promising candidates for bits in future robust and compact data storage devices. At...

Im Focus: High-speed march through a layer of graphene

In cooperation with the Center for Nano-Optics of Georgia State University in Atlanta (USA), scientists of the Laboratory for Attosecond Physics of the Max Planck Institute of Quantum Optics and the Ludwig-Maximilians-Universität have made simulations of the processes that happen when a layer of carbon atoms is irradiated with strong laser light.

Electrons hit by strong laser pulses change their location on ultrashort timescales, i.e. within a couple of attoseconds (1 as = 10 to the minus 18 sec). In...

Im Focus: Battery Production: Laser Light instead of Oven-Drying and Vacuum Technology

At the exhibition BATTERY + STORAGE as part of WORLD OF ENERGY SOLUTIONS 2015 in Stuttgart, the Fraunhofer Institutes for Laser Technology ILT and for Ceramic Technologies and Systems IKTS will be showing how laser technology can be used to manufacture batteries both cost- and energy-efficiently.

In the truest sense, it’s all about watts at the Dresden-based Fraunhofer Institute for Ceramic Technologies and Systems IKTS and the Aachen-based Fraunhofer...

Im Focus: New Sinumerik features improve productivity and precision

EMO 2015, Hall 3, Booth E06/F03

  • Drive optimization called automatically by the part program boosts productivity
  • Automatically switching the dynamic values to rapid traverse and interpolation...
All Focus news of the innovation-report >>>



Event News

EHFG 2015: Securing healthcare and sustainably strengthening healthcare systems

01.10.2015 | Event News

Conference in Brussels: Tracking and Tracing the Smallest Marine Life Forms

30.09.2015 | Event News

World Alzheimer`s Day – Professor Willnow: Clearer Insights into the Development of the Disease

17.09.2015 | Event News

Latest News

Graphene teams up with two-dimensional crystals for faster data communications

06.10.2015 | Information Technology

Laser-wielding physicists seize control of atoms' behavior

06.10.2015 | Physics and Astronomy

Flipping molecular attachments amps up activity of CO2 catalyst

06.10.2015 | Life Sciences

More VideoLinks >>>