scholarly journals Architectures for Flexible Collaborative Systems

Author(s):  
Birthe Böhm ◽  
Carmen Cârlan ◽  
Annelie Sohr ◽  
Stephan Unverdorben ◽  
Jan Vollmar

AbstractCollaborative systems are characterized by their interaction with other systems in collaborative system groups in order to reach a common goal. These systems interact based on fixed rules and have the ability to change structurally, if necessary. Changes in the collaboration are usually triggered from outside and are time-discrete with a rather wide time scale. The architectures of these systems and system groups must support flexibility and adaptability at runtime while also ensuring specific qualities, although these changes and their consequences cannot be fully foreseen in all combinations at design time.In order to enable knowledge preservation and reuse for the design of system architectures for flexible collaborative systems and system groups, we present a method for designing reference architectures for systems and system groups. For this approach, we present an example of a reference architecture for an operator assistance system. To adequately consider safety requirements during the design, we further introduce a method which adapts safety argumentation for flexible collaborative systems to changes in their specification or operating context.

Author(s):  
Sebastien Faucou ◽  
Francoise Simonot-Lion ◽  
Yvon Trinquet

The embedded electronic architecture of a modern vehicle is a distributed system composed of several tenths of nodes. The development of these systems relies on a cooperative process involving several partners (carmakers and several suppliers). In such highly competitive domain, three main factors have to be taken into account: the design and production costs, the performance, comfort, and quality of driving, and several stringent safety requirements. In order to fulfill these requirements in such a context, it is vital for the different stakeholders to master the effects of the different sources of complexity. One way to reach this goal is to provide them with a common modeling language capable of representing the system at all its design steps and a common reference architecture in terms of components and organization. This chapter illustrates this approach. It focuses on EAST-ADL, an architecture description language dedicated to the automotive domain. Its links to the reference architecture defined by the AUTOSAR consortium are given. The chapter focuses especially on the ability offered by EAST-ADL to support the validation and verification (V&V) activities in order to fulfill the safety requirements.


Sensors ◽  
2019 ◽  
Vol 19 (4) ◽  
pp. 907 ◽  
Author(s):  
Andrej Grgurić ◽  
Miran Mošmondor ◽  
Darko Huljenić

Many researchers and product developers are striving toward achieving ICT-enabled independence of older adults by setting up Enhanced Living Environments (ELEs). Technological solutions, which are often based on the Internet of Things (IoT), show great potential in providing support for Active Aging. To enhance the quality of life for older adults and overcome challenges in enabling individuals to achieve their full potential in terms of physical, social, and mental well-being, numerous proof-of-concept systems have been built. These systems, often labeled as Ambient Assisted Living (AAL), vary greatly in targeting different user needs. This paper presents our contribution using SmartHabits, which is an intelligent privacy-aware home care assistance system. The novel system comprising smart home-based and cloud-based parts uses machine-learning technology to provide peace of mind to informal caregivers caring for persons living alone. It does so by learning the user’s typical daily activity patterns and automatically issuing warnings if an unusual situation is detected. The system was designed and implemented from scratch, building upon existing practices from IoT reference architecture and microservices. The system was deployed in several homes of real users for six months, and we will be sharing our findings in this paper.


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