Solving constraints over the oating point numbers is a key issue in the process of software validation and veri cation. Techniques to solve such constraints on the basis of projection functions have been successfully developed. However, though correct, this approach can lead to slow convergence phenomena for very common constraints like addition and subtraction constraints. In this paper, we in...

Graph Grammars have been often used for modeling dynamic changes in software architectures. In particular, we have previously characterized some classes of dynamicity in terms of particular aspects of graph grammars. Moreover we have identified classes of properties that can be naturally associated to any of such kinds of dynamicities. In this paper we approach the problem of verifying such pro...

Electronic institutions are a formalism to define and analyse protocols among agents with a view to achieving global and individual goals. In this paper we elaborate on the verification of properties of electronic institutions based on the dialogues that agents may hold. Specifically, we provide a computational approach to assess whether an electronic institution is normatively consistent. In t...

Cocktail II (a further development of Cocktail) is an interactive tool for deriving programs from specifications. Instead of verifying a program after it was constructed, Cocktail II aids the goal oriented derivation of a program. First, the user provides a preand postcondition. Then, the gap between these conditions is filled by manually inserting statements, constructing the program step by s...

Verification and Validation (V&V) of simulation models have been strongly investigated in the context of defense applications. Significantly less substantial work can be found for applications in production and logistics, which is surprising when taking into account the massive impact that wrong or inadequate simulation results can have on strategic and investment-related decisions for large pr...

Model Verification, Validation and Accreditation (VV&A) is as complex as developing a Modeling and Simulation (M&S) application itself. For the purpose of structuring both Verification and Validation (V&V) activities and V&V results, we introduce a refined V&V process. After identification of the major influence factors on applicable V&V, a conceptual approach for subphase-wise organization of ...

Why Read This Chapter? To help you decide how to check your simulation – both against its antecedent conceptual models (verification) and external standards such as data (validation) – and in this way help you to establish the credibility of your simulation. In order to do this the chapter will point out the nature of these processes, including the variety of ways in which people seek to achiev...

Serious games are developed with the goal of having a certain impact on players which goes beyond mere entertainment. This purposedriven design is immanent to serious games and can be stated as the key characteristic that distinguishes serious games from other digital games. Hence, verifying that a serious game has the intended effect on the players needs to be an essential part in the developm...