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MARTE (Modeling and Analysis of Real-Time and Embedded Systems) is a profile of UML (United Modeling Language). MARTE provides support for specification, design and verification of real-time and embedded systems. Even though MARTE time model offers a support to describe multiform clocks, it lacks the ability to model both discrete and continuous behaviors of a hybrid system. To address the problem...
Modeling and Analysis of Real-Time and Embedded systems (MARTE) is a profile of United Modeling Language (UML), which provides support for specification, design and verification for Real-Time Embedded Systems (RTES). MARTE sequence diagram can deal with both discrete and dense time in which a clock can be either chronometric or logical. However it lacks the ability to describe the continuous behavior...
Energy consumption evaluation is one of the most important steps in Cyber-Physical Energy System (CPES) development. However, due to the lack of accurate and effective modeling and evaluation approaches considering the uncertainty of environment, it is hard to conduct the quantitative analysis for the energy consumption of CPESs. To address the above issue, this paper proposes an environment-aware...
Under the increasing complexity and time-to-market pressures, functional validation is becoming a major bottleneck of smartphone applications running on mobile platforms (e.g., Android, iOS). Due to the GUI (Graphical User Interface) intensive nature, the execution of smartphone applications heavily relies on the interactions with users. Manual GUI testing is extremely slow and unacceptably expensive...
Cyber-Physical Systems (CPSs) integrate computing, communication and control processes. Close interactions between the cyber and physical worlds occur in time and space frequently. Therefore, both temporal and spatial information should be taken into consideration when specifying properties of CPS systems for verification. However, how to formulate properties specifying spatial together with temporal...
Modeling and testing for parallel software systems is difficult, because the number of states and execution fragments expand significantly caused by parallel behaviors, so that many traditional testing methods cannot work effectively for this kind of software. In this paper, a test sequence generation method based on model reduction for parallel software systems is shown. Firstly, a formal model for...
The Model-Driven Architecture approach defines system functionality using a platform-independent model(PIM).The PIM is translated to one or more platform-specific models (PSMs) that computers can run. The analysis and verification to these models is necessary at the first stage of software development process. Due to lack of formal semantics, UML model describing software character need to be translated...
Cyber-Physical Systems (CPSs) integrate computing, communication and control processes. Therefore, both time and space information are required in the design and modeling of CPS systems. CPS also requires demanding real time property. However, unified modeling of continuous and discrete variables is still an unsolved problem in the CPS development. In this paper we propose an extended UML state chart,...
We have seen growing interest in validation of a business process model before it is implemented due to the complexity to model business process. In this paper, we propose a method for analyzing and validating the functional correctness of a business process model. Based on our previous work, we model a business process in UML activity diagrams with OCL constraints, then we give a formal semantics...
The Clock Constraint Specification Language (CCSL) provides expressions and relations to specify the time requirements and causal dependencies of systems. It was initially proposed, in the context of MARTE: the UML profile for Modeling and Analysis of Real-Time and Embedded Systems. In this paper, we propose a method to verify CCSL specifications. We give a formal state-based interpretation of a fundamental...
Assuring the consistency between collaborative services is a challenge problem in service oriented architecture. In this paper, we propose an approach to verifying the consistency of collaborative services based upon model checking. We first introduce an Extended UML Sequence Diagram for modeling dynamic behavior of collaborative service combining with UML State Chart Diagram. And then we define Collaboration-Contracts...
It is very costly if a software project development has to recover from an error that is due to a mistake made in the construction of the requirements model. Validation of requirements model is thus always an effective means for detecting defects in the requirements model. In this paper, we present an approach to modeling requirements by UML with OCL, and the design of a tool EOC (executable OCL checker),...
Service component architecture (SCA) is a new promising programming model for constructing service-oriented application, which facilitates the development of business integration in SOA. However, there still lacks the unified theory foundations for the service component assembly based on SCA in a rigorous way. Firstly, a metamodel of the contract-based SCA is proposed by applying the idea of design...
This paper presents an approach to validation and verification of the WSCDL specification. In order to validate whether the CDL document is well defined or not, we introduce OCL to precisely describe the constraints which was expressed by natural language, and design a simple validator to check the static properties of the CDL document. The validator is created based on a Java model and the Java model...
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