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An Overview of RTT: A Design Framework for Real-Time Systems


Publication Type:

Journal article


Journal of Parallel and Distributed Computing


RealTimeTalk (RTT) is a design framework for developing distributed real-time applications with both hard and soft requirements. The framework supports design via hierarchical decomposition.We believe that object-orientation is the best way to go about structuring a problem, hence the RTT language is based on Smalltalk with an analysis frontend to infer type information for run-time safety, and to yield more precise estimations of execution times.Unlike most real-time systems, RTT does not force the designer to embed constructs for timing requirements, communication, and synchronization in the code. Rather, such information is specified on a higher level of abstraction using graphical tools. This not only keeps the code "clean" but also simplifies timing analysis and resource allocation.A comparison with other real-time systems concludes the paper.


author = {Christer Norstr{\"o}m and Jukka M{\"a}ki-Turja and Jan Gustafsson and Kristian Sandstr{\"o}m and Ellus Brorson},
title = {An Overview of RTT: A Design Framework for Real-Time Systems},
month = {August},
year = {1996},
journal = {Journal of Parallel and Distributed Computing},
url = {}