25 research outputs found
SuperJet International case study: a business network start-up in the aeronautics industry.
No full textThis chapter presents the SuperJet International case study, a start-up in the aeronautics industry characterized by a process-oriented approach and a complex and as yet evolving network of partnerships and collaborations. The chapter aims to describe the key points of the start-up process, highlighting common factors and differences compared to the TEKNE Methodology of Change, with particular reference to the second and third phase, namely, the design and deployment of new techno-organizational systems. The SuperJet International startup is presented as a case study where strategic and organizational aspects have been jointly conceived from a network-driven perspective. The chapter compares some of the guidelines of the TEKNE Methodology of Change with experiences and actual practices deriving from interviews with key players in SJI’s start-up process
Toward a collaborative vocabulary management system
No full textIn the age of knowledge-based economy, the always-growing necessity of an effective means to share concepts and their representation frequently leads to the development of domain specific vocabularies. However, vocabu-laries may fail to capture the real common understanding of a community, mostly because of its low involve-ment in the development phase. The paper gives a first set of considerations about a collaborative approach to vocabulary development and outlines the main issues that such approach would imply. Finally some collabora-tion use cases are proposed for solving some integrity issues that collaboration implicitly entails
Metadata for a reusable business vocabulary element
No full textThe aim of this paper is to present the structure and the metadata needed to construct a business vocabulary element. The business vocabulary element could be considered as the building block of a Domain Specific Language (DSL) dictionary. For creating the desired reusable vocabulary element a set of metadata is used to ensure collective synthesis, flexible categorization, and the integrity with other systems as business rules based ones. One of the most important parts is finding those who can define a vocabulary element by a histogram density processing. Creating a vocabulary element with basic metadata and some hints about who can define it better than the others, is a first step for the creation of a vocabulary element that is well defined, clear, reusable, and maintainable
Building a Process-Based Organization: the Design Roadmap at Superjet International
No full textThe benefits of managing companies through a process-based approach are well recognized in the business literature
and in many corporate contexts. However, there is a limited discussion on how to practically design and develop an
organization based on processes. This paper aims to address this relative ‘gap’ in the literature by presenting the case
of a recent international joint venture in the regional jet industry. In the following paper, we present a story of
organization design based on the identification and description of the core process model of the company, with a
specific focus on customer service activities. Based on interviews and direct observation at the field site, this paper
shows the main steps undertaken to define the process taxonomy levels and to describe process elements, along with a
discussion of the relationships with the business model components of the company. The paper provides practical
value as it provides practical insights relating to the start-up of a new company driven by a process-based approach
A Study on the Collective Perceived Representation of a Real Urban Area through the Usage of an Engaging Framework, Based on a 3D Virtual Environment and Openstreetmap Data
No full textThe need for urban regeneration does not come only by structural requirements, but also by socio-cultural needs. What we are going to propose is the urban regeneration as a way to perceive, in a different way, the surrounding spaces allowing users to receive and provide a wide range of information on the urban environment. Each space of a city has a variety of intrinsic meanings provided by human groups interacting with each other everyday. The purpose is collecting the hidden information thanks to citizens' contribution. The objective is the involvement of citizens as "builders of sense" through a playful attitude as "builders of virtual cities", and using game based on motivation as impetus for the regeneration. Urban regeneration is innovative thanks to a new participatory and cooperative methodology based on the perception of every citizen, and on the collection of players' experiences
Sentiment Analysis for Government: An Optimized Approach
No full textThis paper describes a Sentiment Analysis (SA) method to analyze tweets polarity and to enable government to describe quantitatively the opinion of active users on social networks with respect to the topics of interest to the Public Administration. We propose an optimized approach employing a document-level and a dataset-level supervised machine learning classifier to provide accurate results in both individual and aggregated sentiment classification. The aim of this work is also to identify the types of features that allow to obtain the most accurate sentiment classification for a dataset of Italian tweets in the context of a Public Administration event, also taking into account the size of the training set. This work uses a dataset of 1,700 Italian tweets relating to the public event of “Lecce 2019 – European Capital of Culture”
Control system for over-actuated AUVs in inspection and intervention tasks
No full textThe thesis aim was to design a control system for an over-actuated AUV, with particular focus on the control allocation system. Of the latter problem various resolution algorithms were implemented and compared: Pseudoinverse, Linear Programming and Mixed Integer Linear Programming. The comparison between the various optimization methods was made by defining and evaluating some performance indicators, such as computational time and allocation error.
A request from the project leader of "A2I2" was to evaluate the performance of the robot for two different inspection tasks. Thus, a motion planner emulator was implemented for the two scenarios: the survey of a wall and the survey of a monopile. For each task various mission specifications were provided, such as: image stability, maintaining of a certain viewing angle and a desired distance from the inspected structure.
A 3D simulation environment, in ROS / GAZEBO, using AUV dynamics as well as models for thrusters and for navigation sensors, has been developed, starting from the open-source package uuv_simulator, in order to validate the software and acquire the results. The simulator is designed to be as generic as possible, in order to facilitate future developments and adapt to user's needs.
From the results of the simulations it was possible to carry out a more in-depth analysis of the allocation algorithms and a comparison of the vehicle performance with three different thruster configurations. From these verifications the LP was chosen as the allocation method, since it represents a trade off between allocation error and computational time.
As far as the comparison on the three configurations is concerned, it is chosen to evaluate the performance, in terms of compliance with mission specifications, energy used during the mission and mission time.
Once the software is tested, it is integrated with the On-board Control System, a vehicle-independent software developed by NOC engineers, respecting certain new constraints.
In order to make simulations, as realistic as possible, external disturbances (e.g. sea current) and faults in the actuators were added. A new vehicle performance analysis, evaluating the new results, was given.
Finally a fault reaction system was studied, in a theoretical way. This system should allow the robot to decide, in case of identified fault, whether or not to abort the mission. To avoid faulty thrusters some on-line change in thruster algorithm method are implemented, and a comparison in case of fault between the "standard" algorithm and the updated one was given
Abstracting IoT Complexity Through an Innovative Virtual Environment of Things
No full textAbstract: Background: While smart objects are present in our cities everywhere, the real aim of the In- ternet of Things is not turned into reality yet. Each smart object is still designated to a specific task and requires proprietary procedures for interaction. Thus, it becomes more necessary to have a connection platform for abstracting the complexity of smart objects and to present their data to the end-users through a simpler interaction procedure.
Objective: This paper aims at defining a model that represents a connection/interaction layer between smart objects and people, building a more intuitive human interface towards the Internet of Things.
Method: We propose an immersive virtual platform, able to engage end-users and let them be aware of the following strategic factors: where smart objects are deployed in the city, what features/data they of- fer, and how this data represents context for the urban areas.
Results: We have developed and tested a prototypical Virtual Environment of Things, within an immer- sive 3D environment in which the user can explore the virtualized urban area and interact with the available smart objects through gestures and affordable Virtual Reality devices. The virtual environment is fed by real-time data produced by a multiprotocol sensing middleware that simplifies the interaction with physical devices through high-level RESTful APIs.
Conclusion: Paying attention to interconnection of people and things, this prototype empowers final us- ers with engaging tools in order to enhance the fruition of the IoT paradigm. The developed system was compared with existing solutions and fully tested in a real scenario
Generalized quantum-assisted digital signature service in an SDN-controlled quantum-integrated optical network
No full textDigital signature (DS) is an essential application of cryptography, used to certify the provenance of a message and its authenticity, guaranteeing the non-repudiation, unforgeability, and transferability of messages. However, the forthcoming advent of quantum computation poses a significant threat to classical signature schemes. A possible solution could be the introduction of novel DS schemes based on the fundamental laws of quantum physics. Recently, several quantum DS (QDS) protocols have been proposed, even relying on the exploitation of off-the-shelf quantum key distribution (QKD) solutions. However, their efficiency and large signature size, uncorrelated to the size of the message to sign, represent the main limitation in their employment in a practical scenario. A trade-off solution could be a quantum-assisted DS (QADS), where the QKD technology is exploited together with classical cryptographic functions to achieve a stronger DS scheme, more resistant even to quantum attacks. We propose a generalized quantum-assisted digital signature (G-QADS) protocol based on a hybrid system, composed by the standard Wegman-Carter Message Authentication Code (WG-MAC) together with symmetric QKD keys, to enhance the security of the DS, allowing messages with arbitrary lengths to be signed while maintaining a suitable DS length. In this work, the G-QADS process is proposed for a three-party configuration (one signer and two verifiers), where the third participant is involved in the procedure just in the case of contention between the other two parties. The G-QADS protocol is then experimentally tested to prove its resilience to forging and non-repudiation attacks, demonstrating its capability in securing the message signature (with a success probability of the attacks 10^-18). The performance is experimentally tested exploiting QKD prototypes based on standard BB84 protocol with decoy states and polarization encoding, in a software-defined network (SDN) infrastructure supervised by a single SDN controller, which provides the management of both classical and quantum communication channels. The proposed solution could push the practical exploitation of QKD into a new application domain, leading to a more pervasive integration of quantum technology in realistic scenarios
Monitoring Business Processes in the Networked Enterprise
No full textThe Object Management Group (OMG) is promoting the Model Driven Architecture (MDA) approach to support interaction among enterprises based on business process models. Based on this approach, we discuss in this paper how to specify performance indicators among the levels with different degree of abstraction suggested in MDA. These indicators will drive the monitoring activities to check the execution of business processes involving networked enterprises. Connecting the different levels we also decrease the cost of implementing metrics as the measurement of the entities at one level can be based on the lower level
