Direct versus stigmergic information flow in systems-of-systems

Kopetz, Hermann; Frömel, Bernhard; Höftberger, Oliver

doi:10.1109/sysose.2015.7151963

Cited by 17 publications

(16 citation statements)

References 6 publications

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“…Stigmergic Information Flows: A stigmergic information flow is present if one sending CS acts on the physical environment and changes the state of the environment and later on another receiving CS observes the changed state in the environment with a sensor that captures the sensor specific aspect of the environment [24]. Consider, for example, the coordination of cars on a busy highway to realize a smooth flow of traffic.…”

Section: Message-based Information Flowsmentioning

confidence: 99%

Emergence in Cyber-Physical Systems-of-Systems (CPSoSs)

Kopetz

Bondavalli

Brancati

et al. 2016

Lecture Notes in Computer Science

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Section: Message-based Information Flowsmentioning

confidence: 99%

Emergence in Cyber-Physical Systems-of-Systems (CPSoSs)

Kopetz

Bondavalli

Brancati

et al. 2016

Lecture Notes in Computer Science

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“…There are two kinds of interactions a CS can have with its environment: message-based interactions with cyber space and physical or stigmergic interactions [28]. In order to model stigmergic interactions it is useful to define the concept of an entourage of a CS, i.e.…”

Section: Architectural Elements Of Cyber-physical Systems-of-systemsmentioning

confidence: 99%

“…It provides an abstraction over cyber-physical channels to context-independent [27], direct and indirect information flows among systems and their environment [28]. The abstraction over cyber-physical channels removes any lower-level details of the interactions that is not relevant for describing the information processing behavior of CSs.…”

Section: Informational Layermentioning

confidence: 99%

“…Environmental dynamics (e.g., heat dissipation through walls) act additionally to other CSs on the physical state. CSs that interact with each other over a common physical environment establish a stigmergic channel [28], i.e., they communicate indirectly by influencing and measuring the physical state.…”

Section: Rui Cyber-physical Layermentioning

confidence: 99%

“…A hidden channel is a latent information flow among CSs that has not been considered by the modeler. Hidden channels might close feedback loops that are believed to be liable for possibly undesired detrimental emergence [28]. In case some behavior is observed at the RUIs of CSs during CPSoS operation, but cannot be reproduced in a simulation at the informational layer, there are hidden channels present that should be identified.…”

Section: Rui Informational Layermentioning

confidence: 99%

See 2 more Smart Citations

Interfaces in Evolving Cyber-Physical Systems-of-Systems

Frömel

Kopetz

2016

Cyber-Physical Systems of Systems

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Systems‐of‐systems modeling using a comprehensive viewpoint‐based SysML profile

Mori

Ceccarelli

Lollini

et al. 2017

J Software Evolu Process

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In recent years, more and more efforts have been devoted in supporting the design of systems-ofsystems (SoS). Designing such systems is a multidisciplinary problem which involves considering emergent phenomena, assuring the achievement of dependability/security requirements, guaranteeing system responsiveness, and supporting dynamicity/evolution and multicriticality of provided services. A first step towards a viable design approach is to provide a conceptual model of SoS which captures SoS concepts, and their interrelationships aiming at enhancing the understandability of SoS to stakeholders and providing the basis for further automated analysis. In this context, the AMADEOS European project is bringing together researchers and practitioners to provide the support to design SoS starting from the definition of a domain specific ontology serving as a vocabulary for SoS. Our contribution consists in the modeling of the key SoS concepts and relationships defined in AMADEOS adopting a systems modeling language visual modeling language. We propose a systems modeling language profile for SoS, and we show its applicability in a Smart Grid scenario. We show how to use the profile in a model-driven engineering process to support different types of analyses, and we discuss how to integrate the profile in a user-friendly model-driven engineering tool for SoS rapid modeling, validation, code-generation, and simulation. approach. Indeed, different techniques can be found in SoSE to evolve an SoS, handle its dynamicity requirements, achieve time-dependent and dependability/security requirements, early identify, and mitigate detrimental emergence phenomena, and fulfill multicriticality requirements. However, a relevant challenge is to integrate all these techniques in a design methodology that produces a high-level SoS architecture ensuring the delivery of the envisioned global goals. This target architecture should be amenable to refinement and design patterns facilities thus supporting automated analysis wherever possible.With this aim, the adoption of an architectural description language (ADL) 2 is useful for abstracting and understanding SoS design-related problems thus fostering information sharing and reuse among SoS stakeholders and describing an SoS using several viewpoints of analysis. Such a language also reduces development risks and flaws by enabling analysis and experimentation processes at early stages of the design cycle.The copyright line for this article was changed on 25 May 2017 after original online publication. --------------------------------------------------------------------------------------------------------------------------------This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Direct versus stigmergic information flow in systems-of-systems

Cited by 17 publications

References 6 publications

Emergence in Cyber-Physical Systems-of-Systems (CPSoSs)

Emergence in Cyber-Physical Systems-of-Systems (CPSoSs)

Interfaces in Evolving Cyber-Physical Systems-of-Systems

Systems‐of‐systems modeling using a comprehensive viewpoint‐based SysML profile

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