We propose a method to automatically generate software and hardware test cases from a UML model developed through a model-based development process. Where languages such as source-code languages are used within the model, input and expected values for each test case are generated using a custom parser. As a next step, unit test cases are combined to generate integration test cases using a bottom-up approach. Then these cases are converted into hardware test cases for approval testing of embedded systems, using XQuery and hardware mapping tables. We demonstrate this process by applying it to the power window switch module of a Hyundai Santa Fe vehicle. Our approach provides an automatic testing procedure for embedded systems developed by model-based methods, and generates test cases efficiently using a recombination of signals. In conclusion, our proposed method could help reduce the resources needed for test case generation from software to hardware.
"This book is exactly what is needed at the exact right time in this fast-growing area. From its beginnings over 10 years ago of deriving tests from UML statecharts, model-based testing has matured into a topic with both breadth and depth. Testing embedded systems is a natural application of MBT, and this book hits the nail exactly on the head. Numerous topics are presented clearly, thoroughly, and concisely in this cutting-edge book. The authors are world-class leading experts in this area and teach us well-used and validated techniques, along with new ideas for solving hard problems.
Model-based Testing For Embedded Systems Pdf Download
"This handbook is the best resource I am aware of on the automated testing of embedded systems. It is thorough, comprehensive, and authoritative. It covers all important technical and scientific aspects but also provides highly interesting insights into the state of practice of model-based testing for embedded systems."
"As model-based testing is entering the mainstream, such a comprehensive and intelligible book is a must-read for anyone looking for more information about improved testing methods for embedded systems. Illustrated with numerous aspects of these techniques from many contributors, it gives a clear picture of what the state of the art is today."
Prof. Schieferdecker works since 1994 in the area of design, analysis, testing and evaluation of communication systems using specification-based techniques like Unified Modeling Language, Message Sequence Charts and Testing and Test Control Notation (TTCN-3). Prof. Schieferdecker authored many scientific publications in the area of system development and testing. She is co-founder of the Testing Technologies IST GmbH, Berlin and member of the German Testing Board. She received in 2004 the Alfried Krupp von Bohlen und Halbach Award for Young Professors and became member of the German Academy of Technical Sciences in 2009. Her work on this book has partially being supported by the Alfried Krupp von Bohlen und Halbach Stiftung.
Ansys SCADE Suite is a model-based development environment for reliable embedded software, which provides linkage to requirements management, model-based design, verification, qualifiable/certified code generation capabilities and interoperability with other development tools and platforms.
Modern automobiles, aircraft, and other complex industrial products are composed of multiple electronic components, perfectly integrated to provide critical functionality. Underlying these advanced systems are millions of lines of embedded software code that ensure their flawless operation under every operating scenario.
Ansys SCADE Suite, a model-based development environment for critical embedded software, lets users design and validate critical embedded software with minimum project certification costs. Its formally-defined Scade language makes notation intuitive and unambiguous
Ansys SCADE Suite easily integrates with tools for systems architecture design, HMI development and testing and application life cycle management, providing a complete environment for all embedded software development activities
This methodology handbook provides detailed explanations on how to fully satisfy requirements of EN 50128:2011 (Software for communication, signaling and processing systems) and EN 50657:2017 (Software for rolling stock applications) with a SCADE model-based development approach to achieve safe and reliable software, while promoting an efficient model-based development and verification strategy.
This technical obstacle is broken down by Tricentis Tosca, which simplifies API testing using a codeless, model-based approach. The Tosca API Scan provides a simple, no-code solution that supports the easy creation, management, and execution of automated API tests. One can easily test the performance and error handling of your API with its rapid end-to-end tests. To put it simply, it lets you design and automate API test cases.
MODICA is a powerful tool for the model-based testing. It accelerates the test process significantly and automatically generates relevant test sequences for complex systems such as embedded systems. MODICA offers an intuitive, graphical user interface to map the specified behaviour of the test object in usage models. Generated tests can linked easily to textual requirements from requirements management tools, e.g. DOORS.The executable test scenarios are generated directly within MODICA. By defining specific sequence rules, the user can control the generation process in terms of test content and scope. For the generation itself, the powerful and deterministic test case generator from Conformiq is used. MODICA supports numerous test automation systems such as EXAM or MESSINA. As a proven tool for model-based test case generation, MODICA is used among others in the automotive industry.
Paper deals with embedded systems for mechatronics products. The problem of design of embedded systems can be solved via using of model based design. Hardware-in-the-loop (HIL) simulation is as device for designing of embedded systems. Simulation model of real product is running in hardware simulator and embedded systems can control the simulation model. This way enables try also dangerous situations.
Actually, several billions of microprocessors are made per year, but only few percent of them are used a brain of personal computer. Overwhelming majority of microprocessors becomes a part of embedded systems. Embedded systems are special computer systems, which are completely embedded into devices, which are controlled with them. Embedded systems as a basic part of everyday used products as car, printers, cameras, medical devices, gaming devices, washing machine, grass-cutting robots, vacuum cleaner robots, aeroplane, missile rockets, mobile phones, etc. (Figure 1).
Using of embedded systems is practically unlimited and new products with embedded systems are daily introduced in market. This fact still causes that the price of microprocessors, microcontrollers and FPGA chips, fall down. Developing of new product with implemented flexible embedded systems is much cheaper then developing of complicated control structure. Developing of control system via using of embedded system became very simple thing.
Standard personal computer is usable for more purposes (text processing, image processing, internet, email, listening of music, watching the video, playing game etc., but embedded system is used only for one purpose related to product. Striking impact of embedded systems is visible in automotive industry. One car includes several tenths of embedded systems used for various activities as battery management, blind spot detection, air suspension system, parking assistant and self parking system, security system, tire pressure monitoring system, seat control, window lift, emergency brake system, internal combustion motor control, engine cooling system, cruise control, cross-traffic alert system, lane change assistant, collision avoidance system, air condition etc 1, 2, 3, 4, 5, 6, 7, 8, 9.
Tasks of embedded systems is very frequently related to specific time frame and time keeping is marginal important for right functionality of whole product. Very good example of embedded system is auto-pilot in aeroplane, where embedded system has to react very fast during the fly. This is the reason, why real time response is expected from embedded systems.
Embedded systems are applied for controlling of processes and functions of products. It is necessary to obtain amount of information for this controlling and embedded system evaluate these information in running programme and make decision about next activities. Mechatronic product also can communicate with user and can make advice what user should make. This product with embedded system behaves as intelligent system and it is able to automatically decide about its activities (Figure 2). Behaviour of this product is subjected to user, which has possibility to affect to its functions. Besides this, the product can has also other functions unknown for user as checking of product status, check of battery status, user security checking, damage protection, etc. Product should be designed also for unexpected situations caused by user or by others impacts. Key task of mechatronic product is to help to user with safely using of product. Also the product should eliminate bas steps of user, which can be dangerous for product or for user or their environment.
Previous solution of controlling system required amount of logical circuits, timers, buffers, driver circuits etc. Application of embedded systems fully replaces all these systems and provides more flexible and powerful platform. Many improvements can be achieved only via upgrade of control program with minimum intervention to hardware.
The broad set of native CAE and test result readers accelerates system understanding and works with Altair Activate to support model-based development, for multi-domain and system of systems simulations. Altair Embed completes the model-based design portfolio with automated code generation, allowing for the testing and verification of embedded systems. 2ff7e9595c