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Many systems make use of concurrent tasks, however it is often difficult to test concurrent design. Therefore, many test cases are simplified and do not fully test all concurrency aspects of the system. We encountered this problem when analyzing test cases for concurrent flight software at NASA. To address this problem, we developed and evaluated a model based testing (MBT) technique for testing of...
Systems Modeling Language (SysML) is used to capture systems design as descriptive and analytical system models, which relate text-based requirements to the system design model and provide an infrastructure to support analysis and verification. However, SysML is not a methodology, nor a method. This opens-up discussions of how to utilize SysML provided infrastructure to successfully achieve analysis...
Model-based testing is of high practical relevance and many model-based testing approaches have been developed during the last years. But the key question under which conditions model-based testing pays off and a related decision support procedure for its application has not been sufficiently addressed. In this paper we develop a generic decision support procedure whether to apply model-based testing...
In this paper we present the results of an empirical case study performed at the European Space Agency (ESA). In this major project, the various challenges for testing were tackled using a model-based approach for test design and the generation of executable test automation scripts. An evaluation of this approach''s efficiency identified significant cost savings and quality improvements.
Powerful development frameworks and adoption of agile development methods are continuously increasing release frequency, thus compress test cycles. Test automation, often relying on model based approaches, helps to reduce test time, however the introduction of related heavy weight processes is often quite challenging. In order to tackle this problem, we propose a bottom up testing approach, which...
Software testing tasks are usually time-consuming, especially if one considers complex projects. Requirements engineering artifacts are a valuable starting point for the development of software products, and most of software requirements specifications are written in natural language. This paper presents a tool that implements an approach for generating test cases based on Natural Language (NL) requirements...
Recently, cloud computing has become popular for its unique advantages. Many applications have been migrated to cloud as web services. However, evaluating the performance of cloud services is non-trivial. Performance testing is one of the dominant techniques for evaluating system performance. In this paper, we present a model and template-based approach that automatically generates test scripts and...
Software testing is a key part of software development, so it's important that the testers be as effective as possible. Especially in fast-feedback agile teams, software testers must respond to their teammates' need for information with readily available, easy-to-understand testing materials. The novel twist of turning user experience personas inward to focus on the product team members provides deep...
During the development process of Web application, two essential phases are software testing and code refactoring. However, automatic testing script plays an important role in test automation. It has been a hot research topic in Web application. In order to refactor the JavaScript code of Web application more conveniently, an approach to automatic script generation from the defined test case is introduced...
This poster presents an industrial case study about test automation and test suite maintenance in the context of Web applications. The Web application under test is a Learning Content Management System (eXact learning LCMS). We analysed the costs associated with the realignment of four equivalent Selenium WebDriver test suites, implemented using the page object pattern and different methods to locate...
GUI (Graphical User Interface) testing is complex and inefficient in nowadays software testing. This paper proposed a framework for automated GUI test case generation. The framework includes a reverse engineering of executive GUI to create GUI information and event-flow model. According to these information and model, an ant colony algorithm is applied to generate test cases. Our study shows that...
Business/IT alignment is an important driver of IT-business value, thus, an important topic on researchers' and practitioners' agendas. Achieving alignment is a major goal of IT governance. Accordingly, many articles around alignment have been published. However, they describe a wide range of different sometimes overlapping alignment types. Yet, research depends on precise, unambiguous concepts. While...
Software testing has traditionally focused on evaluating the functionality of implemented modules against feature specifications. This approach assumes that customer requirements and usage scenarios are accurately translated into specifications and that individual modules implemented using the feature specifications would work seamlessly and coherently to solve business problems meant to be addressed...
Global Software Engineering (GSE) involves software engineering projects executed with virtual teams from different time zones and diverse cultures. Over the past decade GSE has become the norm influenced by several factors such as optimal costs, availability of skilled pool of resources and globalization trends such as mergers and acquisitions. Adoption of Customer Value Management (CVM) and implementing...
We present the world's first test compression technique that features automation of compression rules for test time reduction on dynamically reconfigurable processors. Evaluations on an actual 40-nm product show that our technique achieves a 2.7 times compression ratio for original configuration information (better than does GZIP), the peak decompression bandwidth of 1.6 GB/s, and 2.7 times shorter...
Traditional techniques to test a software application through the application's graphical user interface have a number of weaknesses. Manual testing is slow, expensive, and does not scale well as the size and complexity of the application increases. Software test automation which exercises an application through the application's UI using an API set can be difficult to maintain. We propose a software...
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