Arvind S. Krishna

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Distributed real-time and embedded (DRE) systems have become critical in domains such as avionics (e.g., flight mission computers), telecommunications (e.g., wireless phone services), tele-medicine (e.g., robotic surgery), and defense applications (e.g., total ship computing environments). These types of systems are increasingly interconnected via wireless(More)
Commercial off-the-shelf (COTS) middleware is now widely used to develop distributed real-time and embedded (DRE) systems. DRE systems are themselves increasingly combined to form “systems of systems” that have diverse quality of service (QoS) requirements. Earlier generations of COTS middleware, such as Object Request Brokers (ORBs) based on the CORBA 2.x(More)
Performance-intensive software is increasingly being used on heterogeneous combinations of OS, compiler, and hardware platforms. Examples include reusable middleware that forms the basis for scientific computing grids and distributed realtime and embedded systems. Since this software has stringent quality of service (QoS) requirements, it often provides a(More)
Open-source development processes have emerged as an effective approach to reduce cycle-time and decrease design, implementation, and quality assurance costs for certain types of software, particularly systems infrastructure software, such as operating systems, compilers and language processing tools, text and drawing editors, and middleware. This paper(More)
End-to-end middleware predictability is essential to support quality of service (QoS) capabilities needed by distributed real-time and embedded (DRE) applications. Real-time CORBA is a middleware standard that allows DRE applications to allocate, schedule, and control the QoS of CPU, memory, and networking resources. Existing real-time CORBA solutions are(More)
Distributed real-time and embedded (DRE) applications have become critical in domains such as avionics (e.g., flight mission computers), telecommunications (e.g., wireless phone services), tele-medicine (e.g., robotic surgery), and defense applications (e.g., total ship computing environments). DRE applications are increasingly composed of multiple systems(More)
Model-driven development (MDD) is an emerging paradigm that uses domain-specific modeling languages (DSMLs) and generative technologies to provide “correct-by-construction” capabilities for many software development activities. This paper provides two contributions to the study of applying MDD to distributed real-time and embedded (DRE) systems that use(More)
This paper provides two contributions to R&D on model-driven development (MDD) techniques that help codify the impact of middleware configurations on end-to-end distributed real-time and embedded (DRE) system quality of service (QoS). First, we describe how MDD techniques can help select middleware configuration parameters that satisfy key functional and(More)
Product-line architectures (PLAs) are an emerging paradigm for developing software families for distributed real-time and embedded (DRE) systems by customizing reusable artifacts, rather than hand-crafting software from scratch. To reduce the effort of developing software PLAs and product variants for DRE systems, developers are applying general-purpose --(More)