A CSP-Based Trajectory for Designing Formally Verified Embedded Control Software

This paper presents in a nutshell a procedure for producing formally verified concurrent software. The design paradigm provides means for translating block-diagrammed models of systems from various problem domains in a graphical notation for process-oriented architectures. Briefly presented CASE tool allows code generation both for formal analysis of the models of software and code generation in a target implementation language. For formal analysis a highquality commercial formal checker is used

CSP design model and tool support

The CSP paradigm is known as a powerful concept for designing and analysing the architectural and behavioural parts of concurrent software. Although the theory of CSP is useful for mathematicians, the programming language occam has been derived from CSP that is useful for any engineering practice. Nowadays, the concept of occam/CSP can be used for almost every object-oriented programming language. This paper describes a tree-based description model and prototype tool that elevates the use of occam/CSP concepts at the design level and performs code generation to Java, C, C++, and machine-readable CSP for the level of implementation. The tree-based description model can be used to browse through the generated source code. The tool is a kind of browser that is able to assist modern workbenches (like Borland Builder, Microsoft Visual C++ and 20-SIM) with coding concurrency. The tool will guide the user through the design trajectory using support messages and several semantic and syntax rule checks. The machine-readable CSP can be read by FDR, enabling more advanced analysis on the design. Early experiments with the prototype tool show that the browser concept, combined with the tree-based description model, enables a user-friendly way to create a design using the CSP concepts and benefits. The design tool is available from our URL, http://www.rt.el.utwente.nl/javapp

THAWS: automated design and deployment of heterogeneous wireless sensor networks

This research focuses on the design and implementation of a tool to speed-up the development and deployment of heterogeneous wireless sensor networks. The THAWS (Tyndall Heterogeneous Automated Wireless Sensors) tool can be used to quickly create and configure application-specific sensor networks, based on a list of application requirements and constraints. THAWS presents the user with a choice of options, in order to gain this information on the functionality of the network. With this information, THAWS uses code generation techniques to create the necessary code from pre-written templates and well-tested, optimized software modules from a library, which includes an implementation of novel plug-and-play sensor interface. These library modules can also be modified at the code generation stage. The application code and necessary library modules are then automatically compiled to form binary instruction files for each node in the network. The binary instruction files then wirelessly propagate through the network, and reprogram the nodes. This completes the task of targeting the wireless network towards a specific sensing application. THAWS is an adaptable tool that works with both homogeneous and heterogeneous networks built from wireless sensor nodes that have been developed in the Tyndall National Institute. Its advantage over traditional methods of WSN development is simplification of development

Automatic creation of mobile web applications from design models

This paper shows a methodology and a support tool for automatically creating the source code of a mobile web application from design models. A designer only needs performing two models: Data model and User Interface with Navigation Model. All models are based on UML extended with stereotypes and tagged values allowing behavior configuration. Models extensions contain all necessary information for creating the complete source code of an application. A support tool was build easiness the process of modeling and configuring with the proposed methodology. This support tool has an example implementation allowing the generation of an ASP.NET MVC 4 mobile web application.XI Workshop de Ingeniería de Softwar

Automatic creation of mobile web applications from design models

This paper shows a methodology and a support tool for automatically creating the source code of a mobile web application from design models. A designer only needs performing two models: Data model and User Interface with Navigation Model. All models are based on UML extended with stereotypes and tagged values allowing behavior configuration. Models extensions contain all necessary information for creating the complete source code of an application. A support tool was build easiness the process of modeling and configuring with the proposed methodology. This support tool has an example implementation allowing the generation of an ASP.NET MVC 4 mobile web application.XI Workshop de Ingeniería de SoftwareRed de Universidades con Carreras en Informática (RedUNCI

Automatic creation of mobile web applications from design models

This paper shows a methodology and a support tool for automatically creating the source code of a mobile web application from design models. A designer only needs performing two models: Data model and User Interface with Navigation Model. All models are based on UML extended with stereotypes and tagged values allowing behavior configuration. Models extensions contain all necessary information for creating the complete source code of an application. A support tool was build easiness the process of modeling and configuring with the proposed methodology. This support tool has an example implementation allowing the generation of an ASP.NET MVC 4 mobile web application.XI Workshop de Ingeniería de SoftwareRed de Universidades con Carreras en Informática (RedUNCI

Generating Network Security Protocol Implementations from Formal Specifications

We describe the Spi2Java code generation tool, which we have developed in an attempt to bridge the gap between formal security protocol specification and executable implementation. Implemented in Prolog, Spi2Java can input a formal security protocol specification in a variation of the Spi Calculus, and generate a Java code implementation of that protocol. We give a brief overview of the role of code generation in the wider context of security protocol development. We cover the design and implementation of Spi2Java which we relate to the high integrity code generation requirements identified by Whalen and Heimdahl. By defining a Security Protocol Implementation API that abstracts cryptographic and network communication functionality we show that protocol logic code can be separated from underlying cryptographic algorithm and network stack implementation concerns. The design of this API is discussed, particularly its support for pluggable implementation providers. Spi2Java's functionality is demonstrated by way of example: we specify the Needham-Schroeder Public Key Authentication Protocol, and Lowe's attack on it, in the Spi Calculus and examine a successful attack run using Spi2Java generated implementation of the protocol roles

Rapid prototyping with Matlab/Simulink-- A case study.

In order to minimise development time it is important to be able to implement and test control functions at an early stage in a project, even before the electronic hardware of the new product is available. For this purpose, a PC based rapid prototyping system including a graphical modelling/simulation tool and automatic C code generation for real-time simulations with hardware in the loop may be used. In this thesis an evaluation of Matlab/Simulink as a tool for rapid prototyping of control functions in dialysis machines has been done. A comparison has also been done to the tool that is in use today at Gambro Lundia AB, MatrixX/SystemBuild. The sections that have been investigated are block diagram modelling including translation from SystemBuild block diagram, state machine implementation, Graphical User Interface, data acquisition, simulation with hardware-in-the-loop, and code generation. The Matlab/Simulink tool has been tested on a hydraulic system prototype during the evaluation and advantages and disadvantages have been noted. The report gives an overview of howMatlab/Simulink meets the requirements that can be expected of a rapid prototyping tool, for control functions and design tips to avoid problems during the development phase

Schedulability analysis and automated implementation of real-time object-oriented design models

There is a growing interest in adopting object technologies for the development of real-time systems. Several commercial tools, currently available, provide object-oriented modeling and design support for real-time systems. While these products provide many useful facilities, such as visualization tools and automatic code generation, they are all weak in addressing the central characteristic of real-time system design, i.e., providing support for a designer to reason about timeliness properties. We believe an approach that integrates the advancements in both object modeling and design methods, and real-time scheduling theory is the key to successful use of object technology for real-time software. We propose a methodology based on this idea for uni-processor multi-threaded environments. Specifically, given an application design model and end-to-end timing requirements, we synthesize a feasible implementation model using a built-in schedulability analysis tool. The synthesis process is supported by automatic code generation that can take the application design model and the synthesized implementation model and generate code for the target platform. In this thesis, I have designed and implemented some of the key components to support this methodology. First, I have developed a schedulability test that determines whether a particular implementation model satisfies the real-time requirements of an application. This can be used during the automatic synthesis process. Second, I have developed an initial implementation supporting automatic code generation, which takes textual specifications of the application design model and a synthesized implementation model, and automatically generates executable code for i