=Paper= {{Paper |id=Vol-3762/479 |storemode=property |title=Design the modern supply chain: The SmarTwin Projec |pdfUrl=https://ceur-ws.org/Vol-3762/479.pdf |volume=Vol-3762 |authors=Michele Di Capua,Emanuel Di Nardo,Angelo Ciaramella,Gennaro Iannuzzo,Aniello De Prisco,Daniele Ruggeri Laderchi,Pietro Catalano,Pietro D'Ambrosio,Salvatore Moscariello |dblpUrl=https://dblp.org/rec/conf/ital-ia/CapuaNCIPLCDM24 }} ==Design the modern supply chain: The SmarTwin Projec== https://ceur-ws.org/Vol-3762/479.pdf
                                Design the modern supply chain: The SmarTwin Project
                                Michele Di Capua1*,†, Emanuel Di Nardo1,†, Angelo Ciaramella2,†, Gennaro
                                Iannuzzo2,†, Aniello De Prisco3,†, Daniele Ruggeri Laderchi3,†, Pietro Catalano4,† ,
                                Pietro D’Ambrosio4,†, Salvatore Moscariello4,†

                                1US srl, via Porzio, Centro Direzionale di Napoli Isola G2, Naples, 80143, Italy.

                                2DIST – Dipartimento di Scienze e Tecnologie – Università di Napoli “Parthenope”, Naples, 80143, Italy.
                                3Magsistem spa, Zona Industriale, 81030 Gricignano di Aversa (CE). Italy.
                                4LinearIT spa, Via Giovanni Severano, 28, 00161 Rome, Italy.



                                                   Abstract
                                                   The SmarTwin project aims to define and explore an innovative service model with two main
                                                   strategic objectives: on the one hand, to anticipate needs arising from both the market (growing
                                                   demand for quality and consumer awareness) and the business world (cost reduction,
                                                   environmental sustainability, optimization); on the other hand, to identify and begin to occupy a
                                                   strategic convergence space related to future and emerging trends in a number of key enabling
                                                   technologies such as Artificial Intelligence, IoT, Digital Twin and others. The basic idea is to
                                                   enable supply chains (and especially those dealing with perishable goods) to achieve new levels
                                                   of efficiency in terms of overall quality and service cost reduction, certification and tracking of
                                                   each activity carried out in the production process, minimization of human health risks and
                                                   reduction of the ecological footprint of products. The supporting software platform of the project
                                                   has been designed on AI (Artificial Intelligence) components and will extend a number of key
                                                   enabling technologies such as IoT, Blockchain, AI and Digital Twin to be able to represent and
                                                   manage the new levels of complexity expected to be required to effectively address the market
                                                   needs identified.

                                                   Keywords
                                                   Supply Chain, Digital Twin, Machine Learning, Blockchain, Internet of Things.1



                                1. Introduction                                                     and one financial. The methodological aspect is aimed
                                                                                                    at providing normative and operational support to
                                    The SmarTwin project aims to investigate an                     supply chain actors for the implementation of the new
                                innovative service model for cost optimization, risk                hypothesized service model.
                                reduction, micro-traceability of a product's                            The technological aspect is aimed at automatically
                                processing steps, certification of the ecological                   detecting events, typical activities, quality levels (of
                                footprint and, finally, financial support for complex               products) and operating conditions (of the various
                                supply chains [2], with a focus on production chains                contexts in which activities take place) through the
                                dealing with perishable products (i.e. vegetables).                 use of IoT technologies, Artificial Intelligence
                                    The project has several innovative aspects. The                 (machine learning [3] and computer vision [4]) and
                                first is represented by the approach to the problem,                predictive analytics systems (e.g., with artificial
                                which is developed on three parallel and integrated                 neural networks and big data analytics systems). This
                                logical levels: one methodological, one technological               information properly collected and analyzed will



                                Ital-IA 2024: 4th National Conference on Artificial Intelligence,        0000-0001-8904-180X (M. Di Capua); 0000-0002-6589-9323
                                organized by CINI, May 29-30, 2024, Naples, Italy                     (E. Di Nardo); 0000-0001-5592-7995 (A. Ciaramella); 0009-
                                ∗ Corresponding author.                                               0003-5962-8302 (G. Iannuzzo);
                                † These authors contributed equally.                                              © 2024 Copyright for this paper by its authors. Use permitted under
                                                                                                                  Creative Commons License Attribution 4.0 International (CC BY 4.0).
                                   m.dicapua@usmail.it (M. Di Capua); e.dinardo@untec.it (E. Di
                                Nardo); angelo.ciaramella@uniparthenope.it (A. Ciaramella);
                                gennaro.iannuzzo@uniparthenope.it (G. Iannuzzo);




CEUR
                  ceur-ws.org
Workshop      ISSN 1613-0073
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                                                            specific    specification),   and      reduction     of
                                                            environmental impact (e.g. minimization of energy
                                                            consumption). These objectives are essentially
                                                            pursued by realizing a technological platform that
                                                            combines the dynamic functionalities required to
                                                            manage the configuration and constant evolution of
                                                            the proposed service model and those of descriptive
                                                            and predictive analysis on the Digital Twin of the
                                                            supply chain ecosystem (see figure 1), with a series of
                                                            specific technological components, based on AI, for
                                                            the recognition of events, activities occurring in the
Figure 1. The Digital Twin schema.
                                                            operational context, potential critical scenarios and
                                                            for the constant verification of consistency between
enable the feeding of a much more extensive product
                                                            what is detected in the real process with what is
certification and tracking system than those currently
                                                            provided for at the contractual and regulatory level.
used. The financial aspect, on the other hand,
represents an absolute novelty for this type of
solution and will allow for versatile and secure
                                                            3. Data integration
management of economic relations between the                    As already mentioned, the main idea of the project
various supply chain partners. In particular, within        is to approach the problem of managing a complex
the system, in addition to supporting with specific         supply chain ecosystem in a holistic way, constantly
functions the process of evaluation and analysis of         monitoring every aspect, every phase of work, every
each step of the economic stage, a virtual currency will    relationship between partners and every event that
be introduced (to be connected to the Digital Twin of       may be useful to ensure the quality specifications
the supply chain [1] model) to manage payments,             expected by the customer and to maximize the
anticipate liquidity within the circuit and to securitize   benefits for the operators in terms of optimizing costs,
credit. Overall, the presence of the financial              time and the objectives set. Obviously, the model must
"dimension" in the governance of supply chain               be adaptable to any supply chain context and be able
processes allows us to enhance the new level of "trust"     to follow the natural evolutions that occur in these
that we aim to achieve with the application of the          contexts to manage seasonality, workload
proposed service model and that not only involves the       discontinuities and any contingencies that may arise.
economic operators in the supply chain but also             It will therefore be necessary to define all the
extends to end consumers.                                   information relating to the actors, the processes, the
                                                            quality objectives to be guaranteed (including
2. The Digital Twin metaphor                                sustainability    objectives,    specific   production
                                                            specifications, etc.) and, of course, the commercial
    The proposed service model is characterized by its
                                                            relationships established between the various actors.
innovative features and, in particular, by its focus on
                                                                Furthermore, for each "measurable" element to be
defining a digital twin of the entire supply chain
                                                            detected in the process, it is assumed that an IoT
ecosystem to achieve a holistic view and a new level
                                                            sensor network or different types of cameras (e.g.
of detail and pervasiveness of process monitoring,
                                                            thermal), whose data streams are constantly analyzed
tracking, quality control and certification activities to
                                                            by the AI components of the system, can be plugged in
address and resolve the typical complexity of contexts
                                                            and used. All the configuration information required
such as productive supply chains.
                                                            to build the model should be defined, captured and
    The digital model aims to represent the various
                                                            managed by the software platform in such a way that
organizational, economic and regulatory dynamics of
                                                            its acquisition is easy and immediate and does not
a modern supply chain, analyzing the huge amount of
                                                            create functional access or operational cost barriers to
data collected by the network of integrated sensors
                                                            adoption. Therefore, it is necessary to provide
and devices (e.g. cameras), in order to suggest
                                                            functions for defining the configuration logic and the
optimization actions aimed at cost reduction (e.g.
                                                            rules behavior of the system that are, as far as
avoidance of waste), prevention of risks to people (e.g.
                                                            possible, driven by automatic processes and are
timely control of the correct arrangement of goods in
                                                            dynamically adaptable and reusable in other phases of
the warehouse), constant monitoring of product
                                                            the supply chain. On the other hand, as far as the IoT
quality (e.g. verification of consistency of storage and
                                                            sensor network and image stream acquisition sources
transport conditions with what is required by the
                                                           is used to detect the status of activities and
                                                           operational contexts both referring to working
                                                           environments (e.g., warehouses for the storage of
                                                           goods) and to the mobile network of multimodal
                                                           transportation (e.g., sensors on board refrigerated
                                                           trucks for the transport of perishable goods).
                                                               These data, appropriately normalized and
                                                           aggregated, can already represent an element of
                                                           interest for the purposes of tracking and monitoring
Figure 2: The general architecture of the designed         the operating conditions of the supply chain
software platform.                                         ecosystem, but at the same time they also constitute a
                                                           knowledge base that can be used for the creation of
are concerned [6], the system must be able to census       predictive models suitable for recognizing
the devices, identify their location and usefulness for    characteristic behaviors or events, that can be
the purpose of assessing the operating conditions and      associated with the statements of supply chain
the associated rules for normalizing, aggregating and      operators or for evaluating elements of optimization
analyzing the collected data.                              and risk prevention. From this point of view the IoT
    The goal of the system in this case is to be able to   platform, integrated into the SmarTwin system,
verify continuous compliance with the optimal              provides for collecting data, aggregating them on a
operating conditions and, at the same time, to certify     time basis, doing systematic checking of predefined
the consistency of what is detected in the real            rules and triggering any alerts, making them
environment with what is stipulated in the                 searchable by the application functions that
agreements and work processes defined in the service       implement the supply chain Digital Twin and making
model.                                                     them available to the various AI-based analytics tools
    Finally, the monitoring of all events in the supply    and optimization components working in the
chain (micro-traceability) and the certification of        background.
processes and activities carried out, together with the
digitalization of contractual agreements through           4.2. Video analysis and machine learning
smart contracts, will also enable the designed
platform to automatically settle economic aspects              This subsystem is in charge of the camera network
between parties, both by generating payment flows          census activities and the management of video
and by offering operators the possibility of               streams, from the various devices installed in the
securitizing their acquired (and certified) receivables    supply chain environment (in places where typical
for use within the system as an alternative form of        activities take place such as warehouses, loading and
liquidity.                                                 unloading pallets, etc.), and for each of them it is
                                                           concerned with submitting the streams to the analysis
                                                           and image processing components to identify events,
4. The software platform
                                                           typical activities or situations of potential interest.
    The software platform, that implements the                 The final components (see figure 3) that will be in
service model, represents the basic technological          charge of image stream analysis (thus based on
infrastructure into which are integrated both the          machine learning and computer vision), will be
dynamic system configuration functionalities               designed as Artificial Neural Networks (ANN) with
(necessary to digitize the model), the services offered    different tasks, each of which is concerned with
by the specific components (such as the IoT platform,      detecting particular types of events (e.g. the presence
Blockchain and AI components), and the operational         of people in the area) or capturing particular
functionalities and those that make the Digital Twin of    information (e.g. the license plate of a vehicle that is in
the overall supply chain ecosystem usable to various       a loading/unloading area). Obviously due to the
types of users. The different components of the            specificity of the technology used, the context and the
platform will be detailed below and are shown in           purpose of the analysis, it is not always possible to
figure 2.                                                  successfully use pre-trained or fully reusable
                                                           components in different similar contexts. We will
4.1. The IoT layer                                         therefore proceed on the one hand with the
                                                           identification of a set of typical events or actions that
   It presides over all activities of continuous
                                                           can be generalized and, on the other hand, with the
acquisition of data from the IoT sensor network that
                                                            artificial neural networks. The main objective here is
                                                            to predict potential problems and recurring data
                                                            patterns, to improve supply chain performance, from
                                                            the data collected by the IoT platform envisaged by
                                                            the project. From a design perspective, it's necessary
                                                            to develop versatile and reusable machine learning
                                                            modules that can be "plugged" into the platform to
                                                            provide information about potential problems that
                                                            may arise along the supply chain being analyzed. The
                                                            models will learn the normal dynamics of information
                                                            flows that characterize one or more processes and
                                                            will be able to recognize "anomalous" patterns of data
                                                            to prevent risks and consequent process-related
                                                            damage or waste, with a view to making the supply
                                                            chain more effective and sustainable. The theoretical
                                                            approach adopted for this purpose is the time-series
                                                            analysis, which focuses on understanding data that
                                                            vary over time. It is particularly relevant in IoT, as
                                                            much data produced by connected devices is
Figure 3: Component Diagram (UML) of the software           organized into time series, such as sensor data and
platform of the project.                                    measurements at regular intervals.
                                                                In the more recent landscape, transformer
identification of technological solutions that can allow    models, which were initially introduced for natural
the integration into the system of specific components      language processing problems, are also showing good
trained ad hoc for a particular task. For example, it       results in this area. Transformers can handle data
may be necessary to monitor the state of preservation       sequences of varying lengths and can be used for time
of a particular type of product in a warehouse, and to      series prediction and analysis tasks. Finally, it is useful
achieve this type of monitoring it may be necessary to      to mention also autoencoders, which are deep
employ two cameras of different technology (e.g. a          learning models used for dimensionality reduction
thermal camera and an RGB camera) and to train a            and feature representation of data, and which can be
specific neural network to process these video              used in time series analysis to extract relevant
streams and detect the state of preservation at a           features and reduce dimensionality of data, which is a
specific frequency. Obviously, this component will          potential issue to be addressed in the application
have to be purpose-built and can only be used in the        scenarios of the project. Our analysis is confirming
same environments, conditions and for the same type         that these deep learning techniques can be used for
of product for which it was originally designed. In the     various time series analysis tasks related to a supply
context of the final prototype, we will try to imagine      chain, such as short or long-term forecasting, anomaly
some case scenarios where such conditions might             detection, trend and pattern analysis. Relative to the
occur, to try to integrate purpose-built AI components      transformer models identified in the first part of the
into the system for a specific function.                    state-of-the-art analysis of the project, some
     As a whole, the subsystem that deals with the          preliminary tests were conducted on literature
acquisition of image streams collects images at a set       datasets to verify the effective ability of these models
frequency from the various devices and submits them         to also be used in the context of time series
to the network of specialized AI components for             forecasting. Preliminary results confirmed that
recognition of typical events and activities, it collects   transformer models can be used with good
all outputs towards the Digital Twin, in order to make      effectiveness also with these types of data.
data available (API) to the monitoring and alerting             In the specific area of IoT sensor data analysis, an
component of the service platform.                          autoencoder-based neural network was tested to
                                                            identify vibration anomalies from sensor readings
4.2.1. Predictive tasks based on ML                         installed on a series of bearings. The aim of the
                                                            preliminary test was to be able to predict future
    In order to integrate predictive task capabilities      bearing failures before they occur.
into the project, recent machine learning techniques
have been explored, with a focus on the use of deep
4.2.2. Quality inspection and computer vision
    In the next stages of the project, possible
automated approaches will be analyzed, to support
quality control processes within warehouses and the
quality verification of perishable products, through
the adoption of computer vision techniques. The
analysis referred to should be non-invasive, i.e. based
on the placement of fixed cameras in places where
operators normally carry out visual inspections.            Figure 4: Pre/Post explainability modelling approach
Digital images from cameras and videos can be used          schema [10].
to train computer vision models dedicated to the
inspection and analysis of products/goods. The              help better understand why an AI model generates
computational vision tasks that will be implemented         certain decisions by describing how it works.
next will cover both general and specific tasks in the          According to recent research made by Forrester,
area of supply chain process control [5]. For example,      XAI represents a phenomenon capable of generating
machine learning models will be trained to detect           numerous tangible benefits for those who regularly
specific machinery (e.g. forklifts) moving in logistics     adopt it within their process management:
aisles, rather than the presence of people in storage
areas. It will also be possible to define and integrate        •     a reduction in model monitoring efforts
more specific and advanced neural network models                     ranging from 35 percent to 50 percent;
that instead perform Human Activity Recognition                •     an increase of up to eight times the number
(HAR) tasks, i.e. the recognition of specific human                  of models in production;
activities (e.g. picking) according to specific logistics      •     an overall accuracy of the model itself that
use cases.                                                           can be estimated at 15 percent to 30 percent;
                                                               •     an increase in the profit range that can even
4.3. Explainable AI (XAI)                                            triple.

    Within the designed platform of the project there           Multimodal data, which characterize control
are several components that adopt Artificial                functions, will be treated with innovative computer
Intelligence (AI) or Machine Learning (ML)                  vision techniques, like image classification, visual
techniques to perform tasks traditionally reserved for      object tracking, and reliable and interpretable AI
the human operator and in particular: for the               techniques (ante-hoc and post-hoc methods). In
automatic classification and analysis of information        addition, methodologies to improve resilience will be
acquired from the supply chain activities, the              used (see figure 4). For the design of decision support
performance of automatic checks, to make predictions        models adopted for risk assessment [8] from
about operating conditions and finally to suggest           information flows that characterize one or more
possible optimizations. In this case, the technological     supply chain processes, XAI methodologies will be
issues to be addressed are essentially: the recognition     used to improve multimodal data aggregation and
of typical events and activities (HAR - Human Activity      decision logic (e.g., Fuzzy Logic). Data mining
Recognition) using image processing techniques and          methodologies will be explored for preprocessing
methodologies based on deep architectures, the              multimodal data (e.g., intrinsic dimension) along with
creation of predictive models from the large amount         signal processing and computer vision techniques.
of data collected from the IoT sensor network (using        Data for learning and testing the designed models will
machine learning techniques), and also the                  be acquired from information flows, images and
implementation of a decision support system (DSS),          videos obtained during the operational phases of the
which is necessary to be able to apply the expected         supply chain. In the early design stages of the
automatic control rules.                                    SmarTwin system, synthetically created realistic data
    In this regard, to mitigate the distrust that often     will be used and data augmentation, concept drift and
arises in adopting AI components as mere functional         Active Learning methodologies will be adopted to
black boxes, whose actual behavior in terms of              make the models more robust. Among the possible
decisions made is not always clear and justifiable in       methodologies adopted for explainability purposes,
detail [7], development approaches, based on the            Neuro-Symbolic (NeSy) AI has been explored in this
emerging branch of eXplainable, AI will be adopted.         early design stage of the project.
The set of tools and techniques used in XAI aims to
4.3.1 Neuro-Symbolic Artificial Intelligence               5. Conclusions
    The goal is to create a system that can learn from          This paper presents the SmarTwin project, which
large amounts of data, much like neural networks, but      aims to integrate the latest machine learning and
also has the high explainability and provable              blockchain technologies into production supply
correctness of symbolic systems. One of the key            chains in order to improve the quality of their
differences between symbolic and neural systems is         component processes, as well as their associated
how they represent knowledge. Symbolic systems use         economic and environmental impacts. The project is
explicit representations that humans can understand.       still at an early stage and will be completed in 2026,
They structure knowledge in a logical way, often using     but the preliminary results of the research activities
logic-based languages. Neural systems, on the other        outlined here confirm the validity of the initial idea.
hand, use distributed representations that are hard to
interpret. They learn representations from data in an
                                                           Acknowledgements
implicit way, which makes them highly adaptable but
also opaque. It’s seen as a promising approach to             The project was funded by the Italian Ministry of
overcoming the limitations of purely symbolic or           Economic Development (MISE): it started in 2023 and
purely neural methods and to advance towards more          it will end in 2026. Project reference no.
intelligent and human-like AI systems. However, NeSy       F/310218/01-02-03-04-05/X56.
AI also faces several challenges. These include the
difficulty of integrating symbolic and neural methods,
the need for large amounts of data to train neural
                                                           References
networks, and the lack of interpretability of neural       [1]  H. van der Valk, et al. “Supply Chains in the Era of
representations.                                                Digital Twins – A Review”, Procedia Computer Science,
                                                                Volume 204, (2022).
4.4. Blockchain integration                                [2] Lambert, D. M., et al. "Supply chain management:
                                                                implementation issues and research opportunities."
    This subsystem deals with the recording on                  The international journal of logistics management 9.2
Blockchain of any information, event, transaction or            (1998): 1-20.
activity that needs to be tracked or is involved in the    [3] H. Wenzel et al. "A literature review on machine
certification processes under the service model. This           learning in supply chain management." Proceedings of
will make it possible to make such records "public,"            the Hamburg International Conference of Logistics
transparent and unchangeable. Of course, some of the            (HICL), Vol. 27. Berlin, 2019.
information recorded on the Blockchain, although           [4] Sun, Yuan, et al. "Improved Commodity Supply Chain
                                                                Performance through AI and Computer Vision
public, may also not be made visible to all users (in
                                                                Techniques." IEEE Access (2024).
which case it would be encrypted) to implement
                                                           [5] S.S. Abosuliman et al. "Computer vision assisted
different access policies and differentiate levels of           human computer interaction for logistics management
visibility based on products and supply chain rules.            using deep learning." Computers & Electrical
Each record will include, where possible, elements to           Engineering 96 (2021): 107555.
certify the information entered also by including          [6] Ben-Daya M. et al., "Internet of things and supply chain
possible references to further records made in other            management: a literature review." International
related Blockchains. Regarding the latter aspect,               journal of production research 57.15-16 (2019)
considering the needs and operations [9] that will be      [7] G. Mugurusi et al. "Towards explainable artificial
envisaged on the Blockchain, we will evaluate in the            intelligence (xai) in supply chain management: a
                                                                typology and research agenda. "IFIP Conference.
next future, as part of the specific research activities
                                                                Springer International Publishing, 2021.
that will be carried out, which implementations and
                                                           [8] Nimmy, Sonia Farhana, et al. "Explainability in supply
how many Blockchains to use and how to link them                chain operational risk management: A systematic
together. Recall, that in addition to the needs for             literature review." Knowledge-Based Systems 235
tracking and certification of events and activities, we         (2022): 107587.
plan to manage by means of Smart Contract all              [9] Chang, Shuchih E., and Yichian Chen. "When
contracting between supply chain actors and all                 blockchain meets supply chain: A systematic literature
economic transactions. A further use that will be made          review on current development and potential
of Blockchain and Smart Contract will be that                   applications." Ieee Access 8 (2020): 62478-62494.
necessary for the virtualization of accrued credit and     [10] Pandian, S. (2022). “Explainable Artificial Intelligence
                                                                (XAI) for AI & ML Engineers”. [online] Analytics
for the eventual securitization and transfer of the
                                                                Vidhya.
same to a secondary market.