Integrating object-oriented modeling techniques with formal specification techniques

The increasing complexity of software systems makes their development complicated and error prone. A widely used and generally accepted technique in software engineering is the combination of different models (or views) for the description of software systems. The primary benefit of this approach is to model only related aspects (Iike structure or behavior). Using different models cIarifies different important aspects of the system, but it has to be taken into consideration that these models are not independent and they are semantically overlapping.\nThe models constitute the fundamental base of information upon which the problem domain experts, the analysts and the software developers interact. Thus, it is of a fundamental importance that it clearly and accurately expresses the essence of the problem. On the other hand, the model construction activity is a critical part in the development process.\nSince models are the result of a complex and creative activity, they tend to contain errors, omissions and inconsistencies. Model verification is very important, since errors in this stage have an expensive impact on the following stages of the software development process.Eje: Teorí

Integrating object-oriented modeling techniques with formal specification techniques

The increasing complexity of software systems makes their development complicated and error prone. A widely used and generally accepted technique in software engineering is the combination of different models (or views) for the description of software systems. The primary benefit of this approach is to model only related aspects (Iike structure or behavior). Using different models cIarifies different important aspects of the system, but it has to be taken into consideration that these models are not independent and they are semantically overlapping. The models constitute the fundamental base of information upon which the problem domain experts, the analysts and the software developers interact. Thus, it is of a fundamental importance that it clearly and accurately expresses the essence of the problem. On the other hand, the model construction activity is a critical part in the development process. Since models are the result of a complex and creative activity, they tend to contain errors, omissions and inconsistencies. Model verification is very important, since errors in this stage have an expensive impact on the following stages of the software development process.Eje: TeoríaRed de Universidades con Carreras en Informática (RedUNCI

A Formal Metamodeling Approach to a Transformation between Visual and Formal Modeling Techniques

Formal modeling notations and visual modeling notations can complement each other when developing software models. The most frequently adopted approach is to define transformations between the visual and formal models. However, a significant problem with the currently suggested approaches is that the transformation itself is often described imprecisely, with the result that the overall transformation task may be imprecise, incomplete and inconsistent. This paper presents a formal metamodeling approach to transform between UML and Object-Z. In the paper, the two languages are defined in terms of their formal metamodels, and a systematic transformation between the models is provided at the meta-level in terms of formal mapping functions. As a consequence, we can provide a precise, consistent and complete transformation between a visual model in UML and a formal model in Object-Z

Towards a Formal Model of Privacy-Sensitive Dynamic Coalitions

The concept of dynamic coalitions (also virtual organizations) describes the temporary interconnection of autonomous agents, who share information or resources in order to achieve a common goal. Through modern technologies these coalitions may form across company, organization and system borders. Therefor questions of access control and security are of vital significance for the architectures supporting these coalitions. In this paper, we present our first steps to reach a formal framework for modeling and verifying the design of privacy-sensitive dynamic coalition infrastructures and their processes. In order to do so we extend existing dynamic coalition modeling approaches with an access-control-concept, which manages access to information through policies. Furthermore we regard the processes underlying these coalitions and present first works in formalizing these processes. As a result of the present paper we illustrate the usefulness of the Abstract State Machine (ASM) method for this task. We demonstrate a formal treatment of privacy-sensitive dynamic coalitions by two example ASMs which model certain access control situations. A logical consideration of these ASMs can lead to a better understanding and a verification of the ASMs according to the aspired specification.Comment: In Proceedings FAVO 2011, arXiv:1204.579

Framework for Product Lifecycle Management integration in Small and Medium Enterprises networks

In order to improve the performance of extended enterprises, Small and Medium Enterprises (SMEs) must be integrated into the extended networks. This integration must be carried out on several levels which are mastered by the Product Lifecycle Management (PLM). But, PLM is underdeveloped in SMEs mainly because of the difficulties in implementing information systems. This paper aims to propose a modeling framework to facilitate the implementation of PLM systems in SMEs. Our approach proposes a generic model for the creation of processes and data models. These models are explained, based on the scope and framework of the modeling, in order to highlight the improvements provided