The Design of a Resource-Aware Reflective Middleware Architecture

Abstract

Abstract. Middleware has emerged as an important architectural component in supporting distributed applications. With the expanding role of middleware, however, a number of problems are emerging. Most significantly, it is becoming difficult for a single solution to meet the requirements of a range of application domains. Hence, the paper argues that the next generation of middleware platforms should be both configurable and re-configurable. Furthermore, it is claimed that reflection offers a principled means of achieving these goals. The paper then presents an architecture for reflective middleware based on a multi-model approach. The main emphasis of the paper is on resource management within this architecture (accessible through one of the meta-models). Through a number of worked examples, we demonstrate that the approach can support introspection, and fine-and coarse-grained adaptation of the resource management framework. We also illustrate how we can achieve multi-faceted adaptation, spanning multiple meta-models.

A Smart IoT-Aware System For Crisis Scenario Management

“…The paper analyzes, compares and consolidates past research work. One of the first approaches is in [19] that presents an architecture for reflective middleware based on a multimodel approach. Through a number of working examples, they demonstrate that the approach can support introspection, and fine-and coarse-grained adaptation of the resource management framework.…”

“…• LM35AH or LM35DZ sensors, with the associated signal conditioning circuit, for measuring the air temperature in • PIR sensor 18 or a more accurate MEMS Thermal sensor 19 to detect the presence of people in a room. Figure 2 shows the schema of a possible implementation of the environmental monitoring device, based on the Arduino MKR1000, whose analog and digital input pins are used according to the typology of the attached sensors.…”

A Generic Language for Dynamic Adaptation

“…This architecture allows dynamic adaptation and extension of the system functions, and it allows exposing some number of container properties, using control , interception and coordination mechanisms. OpenORB [9] is a flexible architecture of component oriented middleware. OpenORB is based on the reflexion.…”

Research Advances in Middleware for Distributed Systems: State of the Art

“…In mission-critical systems, adaptive middleware must make such modifications dependably, i.e., while meeting stringent end-to-end QoS requirements. Reflective middleware [Bla99] goes further to permit automated examination of the capabilities it offers, and to permit automated adjustment to optimize those capabilities. Reflective techniques make the internal organization of systems-as well as the mechanisms used in their construction-both visible and manipulatible for middleware and application programs to inspect and modify at runtime.…”