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    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Usage Models for Smart Grading, Handling and Packaging Solutions in Agile and Reconfigurable Lines</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Mansoor Ahmed</string-name>
          <email>mansoor.ahmed@knowledgebiz.pt</email>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Ruben Costa</string-name>
          <email>ruben.costa@knowledgebiz.pt</email>
          <xref ref-type="aff" rid="aff0">0</xref>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Rui Branco</string-name>
          <email>rui.branco@knowledgebiz.pt</email>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>José Ferreira</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Francisco Fraile</string-name>
          <email>ffraile@cigip.upv.es</email>
          <xref ref-type="aff" rid="aff3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Filippo Ciarapica</string-name>
          <email>f.e.ciarapica@staff.univpm.it</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>CTS-UNINOVA and School of Science and Technology, NOVA University of Lisbon Caparica</institution>
          ,
          <country country="PT">Portugal</country>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Department of Industrial Engineering and Mathematical Science DIISM, Università Politecnica delle Marche UNIVPM</institution>
          ,
          <addr-line>60131 Ancona</addr-line>
          ,
          <country country="IT">Italy</country>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution>KBZ Knowledgebiz Almada</institution>
          ,
          <country country="PT">Portugal</country>
        </aff>
        <aff id="aff3">
          <label>3</label>
          <institution>Research Centre on Production Management and Engineering (CIGIP), Universitat Politècnica de València</institution>
          ,
          <country country="ES">Spain</country>
        </aff>
      </contrib-group>
      <abstract>
        <p>from one location to another. Today, robots are essential in this field. The European sector's share reaches 23 %, yet Europe must still compete with China, Japan, and Korea. Improved efficiency and innovative solutions would be an advantage. However, the transportation of deformable objects such as plastic items and food still cannot be handled by robots. The EUfunded AGILEHAND project will develop innovative technologies that will allow robots to smartly handle and package soft and deformable objects in agile and reconfigurable lines, while intelligence solutions will monitor, control, and synchronize production and logistics for improved efficiency. AGILEHAND's solutions will be demonstrated in four industrial pilots. The work presented here is focused on the testing procedures used for validating and assessing the basics of AGILEHAND solutions functionality and increasing the userfriendliness.</p>
      </abstract>
      <kwd-group>
        <kwd>1 UI/UX</kwd>
        <kwd>Usability testing</kwd>
        <kwd>Agile processing lines</kwd>
        <kwd>Product grading</kwd>
        <kwd>Product Handling</kwd>
        <kwd>Product Packing</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>
        The conveyor system market and, in particular, robot segment for the automated material
handling are experiencing double-digit growth at a compound annual growth rate (CAGR). EU
manufacturers in this sector play a significant role, covering 23% of the market but this technological
edge is being challenged due to the astonishing growth of China, Japan, and Korea [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. In the real
world, many objects to be handled, including food, clothes, bottles, or plastic items, are soft or
deformable and robots are not yet efficient and effective in handling these objects.
      </p>
      <p>
        In this context, EU funded project AGILEHAND [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ], aims at developing advanced technologies for
grading, handling, and packaging autonomously soft and deformable products, as a strategic
instrument to improve flexibility, agility and reconfigurability of production and logistic systems of
the European manufacturing companies.
      </p>
      <p>AGILEHAND project will deploy 3 integrated Suites: 1) Smart Sensing Suite, self-calibrating
sensing solutions to grade the quality (both interior and exterior) of delicate objects and to produce a
mesh of integrated and overlapping sensors that will improve production-line traceability, agility and
reconfigurability; 2) Self-Adaptive Handling, Sorting And Packaging Suite, robotic manipulation
systems that reacts to product quality and that can Pick-Up and Re-Orientated Different Soft and</p>
      <p>Deformable Products without causing product damage considering collaborative
(human-in-themiddle) approaches; 3) Agile, Flexible And Rapid Reconfigurable Suite, a set of AI based solutions that
will allow for monitoring, adaptive control and synchronization of production and logistics flows in
a factory, even when faced with a variability of products, production mix or fresh market,
guaranteeing high performance in customer response time, and an efficient use of resources.</p>
      <p>The AGILEHAND Solutions will be demonstrated in 4 industrial pilots that differ in characteristics
of the surface, deformability, and consistency of the products to be handled.</p>
      <p>The work presented here is focused on the testing procedures used for validating and assessing
the basics of AGILEHAND solutions functionality and increase user-friendliness. Regarding the
software mock-ups, these are developed through service virtualization, API mocks and simulators.
These tools will allow the creation of user interfaces that show the end-user what the software will
look like without having to build the software or the underlying functionality. These software UI
(User Interface) mockups are semi functional user interfaces developed in a software development
tool. Usage models and mock-ups are used by AGILEHAND solutions designers mainly to acquire
feedback from users.</p>
    </sec>
    <sec id="sec-2">
      <title>2. Design Tool and Methodology</title>
      <p>
        This section focusses on describing the tool and methodology used for designing the UI component
of AGILHAND platform, described previously. Designing good user interfaces is often a challenging
process which comprises consideration of several factors such as good functional and systematic
requirement analysis. To cover all aspects of the design process a fully functional tool is a necessity
which can support all kinds of design process needs. One such tool that supports a wide variety of
such functionalities and is openly accepted in enterprise practices is a cloud-based design tool called
Figma [
        <xref ref-type="bibr" rid="ref3">3</xref>
        ]. This tool allows designing mock-ups for user interfaces with the ability to add interaction
to them by prototyping feature. A brief visual look of Figma in workflow is presented in Figure 1.
approach of active participation from involved end-users to ensure a final system that is built on user
expectations.
      </p>
    </sec>
    <sec id="sec-3">
      <title>3. Usability Testing</title>
      <p>
        Usability testing is a systematic evaluation of ease of use and user friendliness in a product or
system which is usually performed through direct participation from stakeholders and end-users by
providing relevant observation and feedback on the experience [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ]. The goal of usability is to pinpoint
design issues and make improvements to ultimately enhance overall user experience (UX).
Usercentered design in software development has grown in recent years which is why usability testing
has become essential in the design process. The proposed model for Agilehand platform usability
testing can be seen in Figure 2.
      </p>
    </sec>
    <sec id="sec-4">
      <title>4. Results</title>
      <p>Agilehand partners were invited to participate in the usability test of common platform. The
usability test gave us insights into many useful findings. Leveraging the Metrics provided by System
Usability Scale gave useful information to understand user behaviors. The feedback provided by
participants was analyzed, focusing on metrics such as completion time, completion rate and user
ratings. The following Figure 4 is a click heatmap of home page, giving insights on what parts of the
page users expect to be interactive and should give users visual feedback when they click on it.</p>
    </sec>
    <sec id="sec-5">
      <title>5. Conclusion</title>
      <p>In conclusion, the usability testing revealed that overall proposed design has good user experience
while there is room for improvement in parts of the design which users found unreachable or not
interactable. In perspective of the future work, more research could be carried out on alternative
navigation patterns or input methods for higher user intractability with the design components to
enhance usability. Additionally, further rounds of usability testing could also be carried out with
diverse user groups which could provide valuable insights.</p>
      <p>This work highlights the results of AGILEHAND project that is directly relevant to the objectives
of the workshop which aims to integrate innovative technologies such as AI, IoT, and data driven
approaches in manufacturing. The workshop's primary objective is to foster knowledge sharing and
collaboration towards creating efficient, resilient, and intelligent manufacturing systems. The
proposed paper contributes to this goal, by developing a testing procedure to be used for validating
and assessing the basics of AGILEHAND solutions functionality and increasing user-friendliness.
Such solutions focus on smart handling technologies that improve efficiency and potentially
resilience and intelligence in manufacturing and logistics operations. Moreover, both the workshop
and the AGILEHAND project highlight the importance of cross-sectoral collaboration for advancing
Industry 4.0. The proposed paper focuses on demonstrating the usage of AGILEHAND unified UI
platform in four industrial pilots.</p>
    </sec>
    <sec id="sec-6">
      <title>Acknowledgements</title>
      <p>The authors acknowledge the European Commission for the support and funding under the scope
of Horizon Europe AGILEHAND Project (Grant Agreement Number 101092043) and the partners of
the AGILEHAND Project Consortium.</p>
    </sec>
    <sec id="sec-7">
      <title>Declaration on Generative AI</title>
      <p>The author(s) have not employed any Generative AI tools.</p>
    </sec>
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