@conference {154, title = {Automated development of web-based modeling services for MSaaS platforms}, booktitle = {Proceedings of the Symposium on Model-driven Approaches for Simulation Engineering (Mod4Sim 2017) {\textendash} part of SpringSim 2017}, year = {2017}, publisher = {The Society for Modeling and Simulation International}, organization = {The Society for Modeling and Simulation International}, abstract = {

MSaaS (M\&S as a Service) is gaining momentum as an effective approach to bring the benefits of service-oriented architectures and cloud computing into the M\&S field, so as to enhance interoperability, composability, reusability and reduce the cost of M\&S efforts. Such significant advantages can be further enhanced by introducing automated model transformations that support the various phases of a M\&S effort, from simulation model building down to model implementation, deployment and execution. In previous contributions we have already addressed the use of automated model transformations that can be effectively adopted to provide simulation services for MSaaS platforms. This paper instead focuses on the automated development of modeling services for MSaaS, i.e., those services that allow platform users to easily build models in their own modeling language by use of a web-based user interface. Specifically, this work proposes an approach to automatically generate web-based visual editors from a metamodel that defines a given modeling language. Once generated, such editors can be made available on demand through a complete MSaaS platform, which also includes simulation services. The paper first describes the architecture of a MSaaS platform that includes modeling services, then illustrates the method for the automated development of web-based modeling services and, finally, gives a complete example application of the proposed method. {\textcopyright}2017 Society for Modeling \& Simulation International (SCS).

}, keywords = {Automation, Information services, Interoperability, Model driven development, Model transformation, Modeling languages, MSaaS, Reusability, Service oriented architecture (SOA), User interfaces, Visual editors, Visual languages, Web services, Web-based modeling, Websites}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020620129\&partnerID=40\&md5=d5baa89a6c01329dba3a44c6afbf1e92}, author = {Bocciarelli, P. and D{\textquoteright}Ambrogio, A. and Mastromattei, A. and Giglio, A.}, editor = {Durak U. and Cetinkaya D. and D{\textquoteright}Ambrogio A.} } @conference {Iazeolla201036, title = {A distributed approach to the simulation of inherently distributed systems}, booktitle = {Simulation Series}, volume = {42}, number = {1 BOOK 4}, year = {2010}, note = {cited By 0}, pages = {36-45}, abstract = {Inherently distributed systems are systems that are distributed by their own nature; in other words, they are composed of subsystems, which are physically and geographically separated. Examples of such systems are the distributed computer systems with various hosts geographically located; the wireless systems with a number of base and subscriber stations geographically separated; the satellite constellations, the military battlefields and so on. Such systems have, in many cases, been studied by use of Local Simulation (LS), in other words, a simulation run by a single host, or by use of Distributed Simulation (DS) in which the simulation system is divided into a number of federates, run by separate hosts for the scope of obtaining resource scalability and simulator reusability. In this paper, the DS approach is seen from a different point of view: a way to give higher representativeness to the simulation of inherently distributed systems. The approach consists of locating the federates in the same geographic positions of the subsystems that are designed to become part of the inherently distributed system. In this way, the distributed system can be studied in a very realistic way before being implemented. In this paper the problems and the advantages of this new DS approach are discussed and the technology is presented that supports and facilitates its introduction.}, keywords = {Computer simulation, Distributed approaches, Distributed simulations, HLA, Military battlefields, Reusability, Satellite constellations, Separation, Simulation in-the-loop, Simulation representativeness, Subscriber stations}, isbn = {9781617382048}, issn = {07359276}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887064085\&partnerID=40\&md5=08dc921115e86c196b23a970cead2f1d}, author = {Iazeolla, G. and Pieroni, A. and Andrea D{\textquoteright}Ambrogio and Gianni, D.} } @conference {Iazeolla2010, title = {A distributed approach to the simulation of inherently distributed systems}, booktitle = {Spring Simulation Multiconference 2010, SpringSim{\textquoteright}10}, year = {2010}, note = {cited By 3}, abstract = {Inherently distributed systems are systems that are distributed by their own nature; in other words, they are composed of subsystems, which are physically and geographically separated. Examples of such systems are the distributed computer systems with various hosts geographically located; the wireless systems with a number of base and subscriber stations geographically separated; the satellite constellations, the military battlefields and so on. Such systems have, in many cases, been studied by use of Local Simulation (LS), in other words, a simulation run by a single host, or by use of Distributed Simulation (DS) in which the simulation system is divided into a number of federates, run by separate hosts for the scope of obtaining resource scalability and simulator reusability. In this paper, the DS approach is seen from a different point of view: a way to give higher representativeness to the simulation of inherently distributed systems. The approach consists of locating the federates in the same geographic positions of the subsystems that are designed to become part of the inherently distributed system. In this way, the distributed system can be studied in a very realistic way before being implemented. In this paper the problems and the advantages of this new DS approach are discussed and the technology is presented that supports and facilitates its introduction. {\textcopyright} 2010 SCS.}, keywords = {Distributed approaches, Distributed computer systems, Distributed simulations, Distributed systems, HLA, Network security, Reusability, Satellite constellations, Simulation in-the-loop, Simulation representativeness, Simulation systems, Subscriber stations, Wireless systems}, isbn = {9781450300698}, doi = {10.1145/1878537.1878675}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-78650620361\&partnerID=40\&md5=2f9f3dded848b3a4a02c6b3a7b5e898c}, author = {Iazeolla, G. and Pieroni, A. and Andrea D{\textquoteright}Ambrogio and Gianni, D.} } @conference {Gianni2008118, title = {A domain specific language for the definition of extended queueing network models}, booktitle = {Proceedings of the IASTED International Conference on Software Engineering, SE 2008}, year = {2008}, note = {cited By 7}, pages = {118-124}, abstract = {The use of design patterns and modular decomposition for the development of component-based software products brings significant improvements in terms of several quality attributes (e.g., reusability, reliability, maintainability). In addition, the modular design of interacting software components allows the foundation of a flexible Domain Specific Language (DSL) that acts as a model description language rather than a coding language, bringing significant savings in terms of development effort. This is particularly true in the field of simulation, in which the use of a common language both to represent and to simulate a given simulation model practically eliminates the need and the effort to fill the gap between the model specification and the simulator implementation. This paper introduces the design features of jEQN, a language for the specification and implementation of simulation models based on extended queueing networks. Details concerning the application of design patterns, modular decomposition and generic type parameters are also presented.}, keywords = {Coding languages, Common languages, Component-based softwares, Computer simulation, Computer simulation languages, Computer software reusability, Design, Design features, Design patterns, Domain-specific languages, DSL, EQN, Generic types, Interacting softwares, Java, Java programming language, Linguistics, Maintainability, Model description languages, Model specifications, Model-driven design, Modems, Modular decompositions, Modular designs, Quality attributes, Queueing network models, Queueing networks, Reusability, Simulation, Simulation models, Software engineering, Software reliability, Specifications, Spontaneous emission, Systems analysis, Telecommunication lines}, isbn = {9780889867154}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-58049139201\&partnerID=40\&md5=0ba8c0ea76e037065fe93e4f9456b413}, author = {Gianni, D. and Andrea D{\textquoteright}Ambrogio} } @conference {Ambrogio2008292, title = {A UML profile for modeling software applications based on grid services}, booktitle = {Proceedings of the IASTED International Conference on Software Engineering, SE 2008}, year = {2008}, note = {cited By 1}, pages = {292-297}, abstract = {Grid environments and software applications based on Grid Services are currently receiving a strong consid- eration. Nevertheless the development of such appli-cations is still di cult and error-prone because of the lack of appropriate notations based on widely used lan-guages such as UML. This paper introduces a classi- cation of services that interact in Grid environments and proposes an UML extension for Grid service- oriented applications. The extension is carried out by use of a UML pro le, that is a lightweight standard ex- tension mechanism that allows to specify the roles of the di erent services within UML diagrams and that can easily be incorporated into UML-based integrated development environments. The proposed pro le facil- itates the development of applications based on Grid Services and increases their reusability and maintain- ability. An example application is introduced to show how the pro le can be e ectively used to annotate ac-tivity diagrams, component diagrams and deployment diagrams.}, keywords = {Applications, Deployment diagrams, Error-prone, Graphic methods, Grid, Grid computing, Grid environments, Grid services, Integrated development environments, MDA, Modeling softwares, Positive ions, Reusability, Service-oriented, Software applications, Software engineering, Spontaneous emission, Standardization, Uml diagrams, UML extensions, UML profile}, isbn = {9780889867154}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-62849118302\&partnerID=40\&md5=7c2372c396d896a454b5c2251fd400e3}, author = {Andrea D{\textquoteright}Ambrogio and Conticelli, L.} } @article {Gianni200776, title = {A language to enable distributed simulation of extended queueing networks}, journal = {Journal of Computers (Finland)}, volume = {2}, number = {4}, year = {2007}, note = {cited By 15}, pages = {76-86}, abstract = {Distributed simulators are increasingly being used for their intrinsic advantages in terms of reusability, fault tolerance, performance, and geographic distribution. The development of a distributed simulator, however, requires significant investments in terms of effort if compared to the development of traditional local simulators. This paper introduces jEQN, a Java-based language that significantly reduces the extra effort needed to develop a distributed simulator of extended queueing networks (EQNs), by enabling simulator developers to build distributed simulators as they were to be locally executed. By use of jEQN, simulator developers are enabled to easily switch from a local to a distributed version of an EQN simulator by only modifying few statements of the given local simulator. Moreover, these statements can be easily inferred by a very intuitive graphical procedure. The paper illustrates both the jEQN architecture, based on a layered approach, and the implementation details that contribute to achieve the above mentioned advantages. {\textcopyright} 2007 ACADEMY PUBLISHER.}, keywords = {Computer simulation languages, Distributed simulations, Fault tolerance, Geographic distribution, High level architecture, Java programming language, Queueing networks, Reusability, Simulators, Software architecture}, issn = {1796203X}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-50149099857\&partnerID=40\&md5=5715034653b5f3887aceb678fc9e510d}, author = {Gianni, D. and Andrea D{\textquoteright}Ambrogio} } @conference {D{\textquoteright}Ambrogio2007210, title = {Software technologies for the interoperability and reusability of distributed simulators}, booktitle = {SISO European Simulation Interoperability Workshop 2007, EURO SIW 2007}, year = {2007}, note = {cited By 2}, pages = {210-219}, abstract = {Giving interoperability and reusability capabilities to distributed simulators is fundamental to the widespread use of distributed simulation. The HLA standard has introduced considerable improvements with respect to previous standards, though it suffers from shortcomings such as (1) lack of interoperability among different IEEE-compliant implementations, (2) no support to the adaptation and integration of individual federates and (3) poor reusability, which is limited to entire federates only. In this paper, we present two independent technologies that overcome such shortcomings. The first technology consists of a CORBA-HLA architecture that overcomes limitation (1), the second technology is a new development framework called SimJ that overcomes limitations (2) and (3). The CORBA-HLA architecture decouples federates from the specific HLA implementation so that federates can be effortlessly run on top of any HLA implementation that exposes services through an IEEE-complaint IDL interface. The SimJ framework eases the development of individual federates by providing a uniform and standard interface for local and distributed simulators, and makes it possible the reuse of components smaller than entire federates in both local and distributed simulators.}, keywords = {Adaptability, Common object request broker architecture (CORBA), Computer architecture, Computer software reusability, Distributed simulations, Framework, HLA, Interoperability, Middleware, Reusability, Simulators, Software technology, Standard interface, Technology}, isbn = {9781615671700}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865354509\&partnerID=40\&md5=3cad39842c91176c439ae7bf7e6b17a1}, author = {Andrea D{\textquoteright}Ambrogio and Gianni, D. and Iazeolla, G.} } @article {D{\textquoteright}Ambrogio2004696, title = {Using CORBA to enhance HLA interoperability in distributed and web-based simulation}, journal = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)}, volume = {3280}, year = {2004}, note = {cited By 8}, pages = {696-705}, abstract = {In distributed simulation, various simulation programs, or else components of a given simulation program, interact as elements of a simulation-oriented distributed computation. The High Level Architecture (HLA) is a standardization effort that provides a general framework for promoting interoperability and reusability in the simulation field. When applied to distributed simulation HLA shows some drawbacks that limit the desired degree of interoperability and reusability. This paper proposes a CORBA-based approach to overcome such drawbacks and improve HLA capabilities. The paper also illustrates how to combine the use of HLA and CORBA for Web-based simulation, which is the extension of distributed simulation to Web-based network infrastructures. {\textcopyright} Springer-Verlag 2004.}, keywords = {Cold rolling, Common object request broker architecture (CORBA), Computer software reusability, Distributed computations, Distributed simulations, High level architecture, Interoperability, Network infrastructure, Reusability, Simulation program, Web based, Web-based simulations, Websites}, issn = {03029743}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-35048819478\&partnerID=40\&md5=c82459b12703bfc7d078f01abef2a9c5}, author = {Andrea D{\textquoteright}Ambrogio and Gianni, D.} }