Architectures for Cooperative Embedded Real-Time Systems

in conjunction with the 25th IEEE International Real-Time Systems Symposium (RTSS04)
 December 5-8, 2004
Lisbon, Portugal

  Technical Program
Program Committee
Call for Papers
Author guidelines
Important dates

Faster and more economic computing devices, sophisticated sensor technologies and advanced communication including wireless networks form today's technological basis to think about cooperative systems which support large real-time applications. These systems will comprise myriads of components, themselves with significant embedded functionality. Key characteristics of these applications include awareness of the physical environment and capability of interacting with it, geographical dispersion, time and safety criticality, mobility and the ability for long term system evolution. Autonomy of components and decentralized control are indispensable to put these systems to work.

The focus of the workshop is: "how to manage uncertainty and complexity of modular, distributed and potentially large-scale systems, which otherwise must possess timeliness properties, including forms of hard real-time behavior".

Challenges to be addressed by the workshop:

bulletDependable models of temporal adaptation

For the envisaged class of systems it may be impossible to define precisely the operational environment. Because of the need to cooperate dynamically over inherently unreliable links, temporal uncertainty of cooperation has to be considered. We may not be able to handle uncertainty by worst case assumptions. On the other hand, environment interaction requirements may dictate the need for some form of real-time hardness. In consequence, new dependably adaptive models are sought to achieve temporally consistent interactions.

Topics: flexible temporal guarantees for interactions; models of temporal consistency.

bulletSystem construction from autonomous components

Autonomy of components is recognized as a means to construct robust systems and handle system evolution. It is also seen as the basis to hide low level temporal issues and compose a system of well defined entities in the functional and temporal domain. This view is well supported on the technological side by the emerging use of smart sensors and actuators which incorporate computational and communication capabilities. In the design process for building large scale systems, component-based system design is a research topic and already has reached practical exploitation. Concerning operational aspects at the distributed system level there still is a need to address appropriate communication models and component interfaces to encapsulate temporal, dependability and functional properties

Topics: architectures for interacting among autonomous components; component interfaces; self-description of components and dynamic interactions.

bulletControl of information dissemination

To support dynamic and spontaneous interactions of autonomous components, active dissemination and notification schemes have been recognized as appropriate communication models. New real-time communication paradigms are emerging which allow to confine propagation of information by thematic, temporal, geographical, security, or physical scopes. This allows to control the trade-off between global accessibility of information and the quality required for a local interaction of components.

Topics: encapsulating and scoping; filters and aggregators.

bulletEmbedded systems middleware

Particularly, the abstractions and services of advanced middleware technology play a decisive role to manage the complexity of embedded systems. The attributes form the makings of a new breed of such systems, or better put, embedded systems-of-systems, based on visions like pervasive and ad-hoc computing, or ambient intelligence.

Topics: time- and event-based middleware; sentient object platforms; protocols for smart transducers; wireless infrastructures.

The workshop addresses research on such visionary systems taking place in Europe, US and Asia/Pacific. The goal of the workshop is to: 

bulletbring together researchers in the area
bulletpresent a range of ongoing projects, activities and results on these topics
bulletstimulate the discussion about the challenges in this area of research


Last edited on 25-06-2004

WACERTS'04 - Call For Papers