Support for Hardware Devices in Component Models for Embedded Systems

Abstract -With the decreasing costs of electronic parts for embedded systems, complexity of their software has drastically increased. A possible solution for handling this high complexity is component-based development, a branch of software engineering that builds complex software systems out of encapsulated units of software named software components. Component-based approach has proven beneficial in enterprise systems and desktop domains. However, embedded system domain introduces some domain-specific problems (e.g. satisfying safetycriticality, real-time requirements and interaction with environment). Therefore, if we want to use the componentbased approach in embedded systems we must address these problems. In this paper we present an overview of how interaction with environment impacts the use of componentbased approach for embedded systems. We present different ways in which component models can enable us to manage hardware devices and provide examples from existing component models. We also present our research plan that addresses the need to improve how component models enable managing hardware devices. Component-based software enginveering; hardware components; hardware devices; non-functional properties; analysi

Software and hardware models in component-based development of embedded systems

As modern embedded systems grow in complexity component-based development is an increasingly attractive approach to make the development of such systems simpler and less error prone. In this approach software systems are built by composing them out of prefabricated software components. One of the challenges for applying component-based development to embedded systems is the tight coupling between the software and the hardware platform. To take full advantage of the component-based approach in the embedded domain, the development process has to provide support for describing and handling this coupling. The goal of this thesis is to provide advancements in development of embedded component-based systems by using a combination of software and hardware models. To achieve the overall research goal, three different aspects are investigated: (i) how to provide support for integration of sensors and actuators in component-based development, (ii) how to utilize a combination of software and hardware models in development of distributed systems, and (iii) how to analyze extra-functional system properties using models of both software and hardware. The thesis goal is addressed by following contributions: (i) a component-based model which allows describing sensors and actuators, and how they are connected to the processing nodes and software components, (ii) a method for automatic synthesis of code for communication with sensors and actuators, (iii) a framework for automatic generation of distributed communication in component-based models and (iv) a compositional model-level analysis of timing and processing node utilization for component-based applications. These contributions are evaluated in separation, by applying prototype tools to either example systems, case-studies, or test scenarios.This is an international double degree doctoral thesis.RALF3PROGRESSASSISTDICE

Software and hardware models in component-based development of embedded systems

As modern embedded systems grow in complexity component-based development is an increasingly attractive approach to make the development of such systems simpler and less error prone. In this approach software systems are built by composing them out of prefabricated software components. One of the challenges for applying component-based development to embedded systems is the tight coupling between the software and the hardware platform. To take full advantage of the component-based approach in the embedded domain, the development process has to provide support for describing and handling this coupling. The goal of this thesis is to provide advancements in development of embedded component-based systems by using a combination of software and hardware models. To achieve the overall research goal, three different aspects are investigated: (i) how to provide support for integration of sensors and actuators in component-based development, (ii) how to utilize a combination of software and hardware models in development of distributed systems, and (iii) how to analyze extra-functional system properties using models of both software and hardware. The thesis goal is addressed by following contributions: (i) a component-based model which allows describing sensors and actuators, and how they are connected to the processing nodes and software components, (ii) a method for automatic synthesis of code for communication with sensors and actuators, (iii) a framework for automatic generation of distributed communication in component-based models and (iv) a compositional model-level analysis of timing and processing node utilization for component-based applications. These contributions are evaluated in separation, by applying prototype tools to either example systems, case-studies, or test scenarios.This is an international double degree doctoral thesis.RALF3PROGRESSASSISTDICE

Classification and Survey of Component Models

Abstract: As component-based software engineering is growing and its usage expanding, more and more component models are developed. In this paper we present a survey of software component models in which models are described and classified respecting the classification framework for component models proposed by Crnković et. al. [1]. This framework specifies several groups of important principles and characteristics of component models: lifecycle, constructs, specification and management of extra-functional properties, and application domain. This paper gives examples three component models using the classification framework