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Information Centric Development of Component-Based Embedded Real-Time Systems


Research group:

Publication Type:

Licentiate Thesis


Mälardalen University Press


This thesis presents new techniques for data management of run-time data objects in component-based embedded real-time systems. These techniques enable data to be modeled, analyzed and structured to improve data management during development, maintenance and execution. The evolution of real-time embedded systems has resulted in an increased system complexity beyond what was thought possible just a few years ago. Over the years, new techniques and tools have been developed to manage software and communication complexity. However, as this thesis show, current techniques and tools for data management are not sufficient. Today, development of real-time embedded systems focuses on the function aspects of the system, in most cases disregarding data management. The lack of proper design-time data management often results in ineffective documentation routines and poor overall system knowledge. Contemporary techniques to manage run-time data do not satisfy demands on flexibility, maintainability and extensibility. Based on an industrial case-study that identifies a number of problems within current data management techniques, both during design-time and run-time, it is clear that data management needs to be incorporated as an integral part of the development of the entire system architecture. As a remedy to the identified problems, we propose a design-time data entity approach, where the importance of data in the system is elevated to be included in the entire design phase with proper documentation, properties, dependencies and analysis methods to increase the overall system knowledge. Furthermore, to efficiently manage data during run-time, we introduce database proxies to enable the fusion between two existing techniques; Component Based Software Engineering (CBSE) and Real-Time Database Management Systems (RTDBMS). A database proxy allows components to be decoupled from the underlying data management strategy without violating the component encapsulation and communication interface.


author = {Andreas Hjertstr{\"o}m},
title = {Information Centric Development of Component-Based Embedded Real-Time Systems},
number = {114},
month = {December},
year = {2009},
publisher = {M{\"a}lardalen University Press},
url = {}