User Requirements
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Joel Runji ◽  
Yun-Ju Lee ◽  
Chih-Hsing Chu

Abstract Maintenance of technical equipment in manufacturing is inevitable for sustained productivity with minimal downtimes. Elimination of unscheduled interruptions as well as real-time monitoring of equipment health can potentially benefit from adopting augmented reality (AR) technology. How best to employ this technology in maintenance demands a fundamental comprehension of user requirements for production planners. Despite augmented reality applications being developed to assist various manufacturing operations, no previous study has examined how these user requirements in maintenance have been fulfilled and the potential opportunities that exist for further development. Reviews on maintenance have been general on all industrial fields rather than focusing on a specific industry. In this regard, a systematic literature review was performed on previous studies on augmented reality applications in the maintenance of manufacturing entities from 2017 to 2021. Specifically, the review examines how user requirements have been addressed by these studies and identifies gaps for future research. The user requirements are drawn from the challenges encountered during AR-based maintenance in manufacturing following a similar approach to usability engineering methodologies. The needs are identified as ergonomics, communication, situational awareness, intelligence sources, feedback, safety, motivation, and performance assessment. Contributing factors to those needs are cross-tabulated with the requirements and their results presented as trends, prior to drawing insights and providing possible future suggestions for the made observations.

Sensors ◽  
2022 ◽  
Vol 22 (2) ◽  
pp. 426
Grigorios Kakkavas ◽  
Maria Diamanti ◽  
Adamantia Stamou ◽  
Vasileios Karyotis ◽  
Faouzi Bouali ◽  

The ongoing transition towards 5G technology expedites the emergence of a variety of mobile applications that pertain to different vertical industries. Delivering on the key commitment of 5G, these diverse service streams, along with their distinct requirements, should be facilitated under the same unified network infrastructure. Consequently, in order to unleash the benefits brought by 5G technology, a holistic approach towards the requirement analysis and the design, development, and evaluation of multiple concurrent vertical services should be followed. In this paper, we focus on the Transport vertical industry, and we study four novel vehicular service categories, each one consisting of one or more related specific scenarios, within the framework of the “5G Health, Aquaculture and Transport (5G-HEART)” 5G PPP ICT-19 (Phase 3) project. In contrast to the majority of the literature, we provide a holistic overview of the overall life-cycle management required for the realization of the examined vehicular use cases. This comprises the definition and analysis of the network Key Performance Indicators (KPIs) resulting from high-level user requirements and their interpretation in terms of the underlying network infrastructure tasked with meeting their conflicting or converging needs. Our approach is complemented by the experimental investigation of the real unified 5G pilot’s characteristics that enable the delivery of the considered vehicular services and the initial trialling results that verify the effectiveness and feasibility of the presented theoretical analysis.

SinkrOn ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 33-38
Meriska Defriani ◽  
Mochzen Gito Resmi ◽  
Okta Amien Permana

Anyelir Cake And Bakery is the largest cake shop in Purwakarta which is engaged in the production of various kinds of cakes.  In the process of distributing products from the central store to branch stores, they still use WhatsApp to place orders. This causes frequent discrepancies in the number of products requested and the number of products received due to an error in reading the message. In this study, a mobile-based application will be built that is able to manage order data more accurately. The development of this application uses the User Centered Design (UCD). This is a design method that focuses on user needs so that the final result of this application does not need to change user behavior when using the application. The UCD method consists of four stages, namely plan the human centered design, specify user and organizational requirements, product design solutions, and evaluate design against user requirements. In the development process, application testing was carried out to get feedback from users with good scores, namely an average of 4 (agree) and 5 (strongly agree). This shows that the application is in accordance with the needs of the user.

2022 ◽  
Vol 70 (1) ◽  
pp. 109-139
Nikola Simić ◽  
Marjan Milenkov ◽  
Vladimir Milovanović ◽  
Vlada Sokolović ◽  
Pavel Foltin ◽  

Introduction/purpose: The paper presents a model of logistics support planning in the conditions of limited logistic resources based on the prioritization of customer requirements and resource allocation. Decisionmakers play a crucial role in the efficient and equitable allocation of resources as they prioritize among different user requirements. Methods: Requirement prioritization techniques that use nominal scale, ordinal scale, and ratio scale, and five methods for converting ranks into weighting coefficients have been applied to determine the degree of significance of user requirements. The Requirements triage method has been used for establishing relative priorities, while the heuristic algorithm determining the Kemeny median was used to consolidate individually ranked requests into a group rank. In order to balance opposing demands of users, consensus measures of group decision making were used. For obtaining an optimal planned solution of logistic support, the methods and techniques of resource allocation were applied. Results: A model for adaptive planning of logistics support in the conditions of limited resource capacities of the logistics system has been developed. Conclusion: The proposed model can be effectively applied in other areas of resource allocation.

2021 ◽  
pp. 875697282110617
Weisheng Lu ◽  
Liupengfei Wu ◽  
Fan Xue

This research aims to develop a multicriteria decision matrix (MCDM) for project management practitioners, which will support blockchain type selection, evaluate blockchain platforms, and plan blockchain systems. The MCDM is substantiated through a case study, which includes a questionnaire and an illustrative example pertinent to the construction industry. It was discovered in this study that consortium blockchain is superior in dealing with the characteristics of projects, and Hyperledger Fabric is chosen as the best applicable platform. In planning a blockchain-based project management system, project management practitioners should consider user requirements such as network participants, principal transactions, communication channels, and smart contracts.

2021 ◽  
Vol 18 (24) ◽  
pp. 1405
Chaowanan Khundam ◽  
Frédéric Nöel

Virtual Museum (VM) is an application of Virtual Reality (VR) technology generating realistic visualization and sensation to convince museum visitors to interact with digital content. There are many immersive VR devices that support interactive VM applications. We investigate appropriate devices for interaction within VM. We proposed a Storytelling platform to achieve device organization without modification, the story and interaction were self-adapted to the selected device. Three types of interactive content were designed on our Storytelling platform to be applied on different interaction systems: a 2D standard display, a 3D stereoscopic display and a full immersive CAVE. The results showed different performances of each system supporting VM developers to select an appropriate interaction system. The evaluation contributes to the design of content and interaction of VM development with more efficiency based on user requirements. HIGHLIGHTS Three types of interactive content were designed on our Storytelling platform to be applied on different interaction systems: A 2D standard display, a 3D stereoscopic display, and a full immersive CAVE The 2D Powerwall system with a wide range of views provides immersion. However, with two-dimensional displays, users lack depth perception Users spent more time in selection and manipulation in the 3D stereoscopic system because depth perception is added The CAVE system has user attraction or holding power, users spent more interacting time GRAPHICAL ABSTRACT

2021 ◽  
Vol 3 (1) ◽  
pp. 47-57
Y Klushyn ◽  
M Tsapiak

A cyberphysical system is a mechanism that is controlled or tracked by computer algorithms and is closely linked to the Internet and interaction with the physical world. The system describes a combination of three main components: the physical world, the software algorithm and the Internet. Based on these components, this article presents a method of building a control system for a smart greenhouse, describes the development environment with its functions and capabilities, provides a detailed description of launching and configuring the program with explanations of key points in the system. This system is aimed at improving and optimizing the process of growing vegetables. The system is easy to use. All software interacts with each other according to clearly defined protocols and therefore there are no system failures. One of the features of this system is the speed of the survey of sensors, which is relevant today. The system consists of a simple user interface that can be modified according to user requirements.

Юлия Юрьевна Липко ◽  
Джульетта Абугалиевна Крымшокалова ◽  
Залина Асланбековна Шогенова ◽  
Джабар Аскерович Лигидов

Методы User Story все чаще используются в качестве основы артефактов проектирования требований при разработке программного обеспечения. На практике доказано, что метод User Story является более эффективным для описания основных целей системы. Но непрерывное управление работой программного обеспечения может быть особенно трудоемким и подверженным ошибкам, особенно при оценке качества или объема пользовательских историй и наблюдении за общей картиной системы. С другой стороны, эти модели были признаны эффективными инструментами коммуникации и анализа цели. В рамках данной работы рассмотрены и проанализированы методы выявления и представления требований к разработке программного обеспечения. В статье предлагается генеративный подход для создания диаграмм надежности на основе автоматизированного анализа пользовательских историй. Истории преобразуются в диаграммы, что позволяет разработчикам требований и пользователям проверять основные концепции и функциональные этапы, лежащие в основе историй, и обнаруживать искаженные или избыточные истории. Такие модели также открывают двери для автоматизированного систематического анализа. The User Story methods (user stories) increasingly are used as the basis of requirements design artifacts in software development. In practice, it is proved that the User Story method is more effective for describing the main goals of the system. But continuous management of software operation can be particularly time-consuming and error-prone, especially when evaluating the quality or volume of user stories and observing the overall picture of the system. On the other hand, these models were recognized as effective tools for communication and goal analysis. Within the framework of this work, methods for identifying and presenting requirements for software development are considered and analyzed. In the article, we propose a generative approach for creating reliability diagrams based on automated analysis of user stories. Stories are converted into diagrams, which allow requirements developers and users to check the basic concepts and functional stages underlying the stories, and detect distorted or redundant stories. Such models also open the door for automated systematic analysis.

2021 ◽  
Grace E Bebarta ◽  
Vikhyat S Bebarta ◽  
Andrew D Fisher ◽  
Michael D April ◽  
Andrew J Atkinson ◽  

ABSTRACT Introduction Previous studies demonstrate that a significant proportion of casualties do not receive pain medication prehospital after traumatic injuries. To address possible reasons, the U.S. Military has sought to develop novel delivery methods to aid in administration of pain medications prehospital. We sought to describe the dose and route of ketamine administered prehospital to help inform materiel solutions. Materials and Methods This is a secondary analysis of a previously described dataset focused on prehospital data within the Department of Defense Trauma Registry from 2007 to 2020. We isolated encounters in which ketamine was administered along with the amount dosed and the route of administration in nonintubated patients. Results Within our dataset, 862 casualties met inclusion for this analysis. The median age was 28 and nearly all (98%) were male. Most were battle injuries (88%) caused by explosives (54%). The median injury severity score was 10 with the extremities accounting to the most frequent seriously injured body region (38%). The mean dose via intravenous route was 50.4 mg (n = 743, 95% CI 46.5-54.3), intramuscular was 66.7 mg (n = 234, 95% CI 60.3-73.1), intranasal was 56.5 mg (n = 10, 39.1-73.8), and intraosseous was 83.3 mg (n = 34, 66.3-100.4). Most had a medic or CLS in their chain of care (87%) with air evacuation as the primary mechanism of evacuation (86%). Conclusions The average doses administered were generally larger than the doses recommended by Tactical Combat Casualty Care guidelines. Currently, guidelines may underdose analgesia. Our data will help inform materiel solutions based on end-user requirements.

2021 ◽  
Vol 2129 (1) ◽  
pp. 012024
S E Mohamed ◽  
N A Ismail ◽  
A Mukthar ◽  
M S Hafiz

Abstract Flood disaster is the most disastrous hydrological event that can lead to property destruction and loss of lives. One of the efforts to mitigate the impact is by providing an advance technology in monitoring and event alert. The flood monitoring application is developed to provide real-time weather forecast and disaster warnings. To increase disaster management efficiency, we conducted this research to identify the needs and requirements for a flood monitoring application. The study is mainly focusing on user perspective and preferences. The participant of this survey includes the authorities, non-government agency (NGO) and public. The participant is given a set of questionnaires containing thirteen questions, including the combination of open-ended and close-ended questions covering three sub-topics: user background, user experience, and user knowledge. List of important flood monitoring application features based on user requirements analysis and empathy map has been used to visualize user attitudes and behaviours.

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