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1 – 10 of over 21000
Article
Publication date: 1 August 1999

Schubert Foo Siu Cheung Hui and See Wai Yip

The Internet environment, with its packet‐switched network and lack of resource reservation mechanisms, has made the delivery of low bit‐rate real‐time communication

Abstract

The Internet environment, with its packet‐switched network and lack of resource reservation mechanisms, has made the delivery of low bit‐rate real‐time communication services particularly difficult and challenging. The high potential transmission delay and data packet loss under varying network conditions will lead to unpleasant and unintelligible audio and jerky video play‐out. The Internet TCP/IP protocol suite can be extended with new mechanisms in an attempt to tackle such problems. In this research, an integrated transmission mechanism that incorporates a number of existing techniques to enhance the quality and deliver “acceptable” real‐time services is proposed. These techniques include the use of data compression, data buffering, dynamic rate control, packet lost replacement, silence deletion and virtual video play‐out mechanism. The proposed transmission mechanism is designed as a generic communication system so that it can be used in different systems and conditions. This approach has been successfully implemented and demonstrated using three separate systems that include the Internet Phone, WebVideo and video‐conferencing tool.

Details

Internet Research, vol. 9 no. 3
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 1 July 2006

Javad Soroor and Mohammad J. Tarokh

As the technology evolves, the ways in which supply chain is coordinated improve. During a careful study on the intelligent wireless web (IWW) and its services for future

2188

Abstract

Purpose

As the technology evolves, the ways in which supply chain is coordinated improve. During a careful study on the intelligent wireless web (IWW) and its services for future applications, its great potentials for the implementation of a mobile real‐time system for supply chain coordination were realized. This paper seeks to introduce a development process for the IWW. In addition, it aims to explain the concept of mobile real‐time supply chain coordination, and propose and describe a practical model for this subject matter based on the most recent technologies including the IWW and agents.

Design/methodology/approach

Objectives were achieved through a thorough study on the IWW, agent technology, and the ways of applying them for mobile real‐time coordination in supply processes. As a method to conduct the research, first, the paper made out what the IWW services are and how one may develop them. Since mobile real‐time coordination is an absolutely innovative concept, the study prepared a comprehensive understanding of it and then, a practical framework was sketched and explained to implement the suggested system. The approach to this topic was a realistic one and an attempt was made to include all the prerequisites and details for the intended system.

Findings

In the course of the work, it was found that the IWW and other corresponding technologies have the greatest potentials ever available for the realization of a mobile real‐time supply chain coordination system and most of the chapters illustrate the claim.

Originality/value

Mobile real‐time coordination and its use in supply chains is something new. The development process for IWW proposed here is totally practicable and no other implementation scenario for the application of the IWW in mobile real‐time coordination has been suggested yet.

Article
Publication date: 21 October 2021

Johann N. Giertz, Welf H. Weiger, Maria Törhönen and Juho Hamari

Social live-streaming services are an emerging form of social media that is gaining in popularity among researchers and practitioners. By facilitating real-time

1671

Abstract

Purpose

Social live-streaming services are an emerging form of social media that is gaining in popularity among researchers and practitioners. By facilitating real-time interactions between video content creators (i.e. streamers) and viewers, live-streaming platforms provide an environment for novel engagement behaviors and monetization structures. This research aims to examine communication foci and styles as levers of streaming success. In doing so, the authors analyze their impact on viewers' engagement with the stream.

Design/methodology/approach

This research draws on a unique dataset collected via a multi-wave questionnaire comprising viewers' perceptions of a specific streamer's communications and their actual behavior toward them. The authors analyze the proposed impact of communication foci on viewing and donating behavior while considering the moderating role of communication style using seemingly unrelated regressions.

Findings

The results show that communication foci represent a double-edged sword: community-focused communication drives viewership while reducing donations made to the streamer. By contrast, content-focused communication curbs viewing but drives donating.

Practical implications

Of specific interest for practitioners, the study demonstrates how streaming content providers (e.g. influencers) should adjust their communications to drive engagement in the context of synchronous social media such as social live-streaming services. Beyond that, this research identifies unique characteristics of engagement that can help managers to improve their digital service offerings.

Social implications

Social live-streaming services provide an environment that offers unique opportunities for self-development and co-creation among social media users. By allowing for real-time interactions, these emerging social media services build on ephemeral content to provide altered experiences for users.

Originality/value

The authors highlight the need to distinguish between engagement behaviors in asynchronous and synchronous social media. The proposed conceptualization sheds new light on success factors of social media in general and social live-streaming services specifically. To maximize user engagement, content creators in synchronous social media must consider their communications' focus (content or community) and style (utilitarian or hedonic).

Details

Journal of Service Management, vol. 33 no. 1
Type: Research Article
ISSN: 1757-5818

Keywords

Open Access
Article
Publication date: 25 September 2018

Ruwini Edirisinghe

The future construction site will be pervasive, context aware and embedded with intelligence. The purpose of this paper is to explore and define the concept of the digital…

16237

Abstract

Purpose

The future construction site will be pervasive, context aware and embedded with intelligence. The purpose of this paper is to explore and define the concept of the digital skin of the future smart construction site.

Design/methodology/approach

The paper provides a systematic and hierarchical classification of 114 articles from both industry and academia on the digital skin concept and evaluates them. The hierarchical classification is based on application areas relevant to construction, such as augmented reality, building information model-based visualisation, labour tracking, supply chain tracking, safety management, mobile equipment tracking and schedule and progress monitoring. Evaluations of the research papers were conducted based on three pillars: validation of technological feasibility, onsite application and user acceptance testing.

Findings

Technologies learned about in the literature review enabled the envisaging of the pervasive construction site of the future. The paper presents scenarios for the future context-aware construction site, including the construction worker, construction procurement management and future real-time safety management systems.

Originality/value

Based on the gaps identified by the review in the body of knowledge and on a broader analysis of technology diffusion, the paper highlights the research challenges to be overcome in the advent of digital skin. The paper recommends that researchers follow a coherent process for smart technology design, development and implementation in order to achieve this vision for the construction industry.

Details

Engineering, Construction and Architectural Management, vol. 26 no. 2
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 26 June 2009

Egil C. Østhus, Per‐Oddvar Osland and Lill Kristiansen

In many settings, the users are mobile (e.g. away from their desks) while high quality multimedia telephony equipment has fixed locations. This may result in unsuccessful…

Abstract

Purpose

In many settings, the users are mobile (e.g. away from their desks) while high quality multimedia telephony equipment has fixed locations. This may result in unsuccessful multimedia calls and motivates a context aware system which supports session mobility. This paper aims to address these issues.

Design/methodology/approach

The approach is to utilize state‐of‐the‐art in‐context awareness and integrate this into a real time telecom system based on SIP. System requirements are formulated and the system is designed, implemented and (technically) tested.

Findings

The paper contains a thorough analysis of why baseline SIP and SIP REFER alone cannot solve our case and why a new SIP extension is introduced. The solution is evaluated and compared to solutions such as “virtual terminals”.

Research limitations/implications

It is pointed out that the context model does not directly support roaming between two different business domains. This issue is however of limited impact in an enterprise setting. The current prototype is thoroughly tested from a technical viewpoint, but user studies in real organizations are recommended as further work.

Practical implications

The paper shows that human issues and issues relating to computer mediated communication (CMC) are strongly linked to technical details in SIP. In practice this means that researchers in CMC and CSCW should look more into building prototypes where real time conversational features are supported together with dynamic change of media types.

Originality/value

The main value of the paper is a thorough described technical realization of the context aware multimedia application ENriched MEdia (ENME). The background material and the appendix should be of value to anyone interested in convergence between computing and communication.

Details

International Journal of Pervasive Computing and Communications, vol. 5 no. 2
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 27 April 2010

Hamid Assilzadeh and Yang Gao

This paper seeks to illustrate designation of a real‐time oil spill monitoring and management system using computer system, GIS models, internet and a variety of other…

1174

Abstract

Purpose

This paper seeks to illustrate designation of a real‐time oil spill monitoring and management system using computer system, GIS models, internet and a variety of other technologies.

Design/methodology/approach

Appropriate models in GIS, together with monitoring technologies and internet‐based communication infrastructure, facilitate oil spill early warning, situational analysis, risk analysis and damage analysis in addition to management and disaster response in real‐time. The system architect includes command and control module, designed for managing and coordinating oil spill accidents response. The structure also includes an accident data dissemination scheme, through an internet portal which distributes disaster thematic products and facilitates communication between oil spill disaster players and the administration office.

Findings

The functionality of such a system through its components including database, central repository, disaster models, command and control and communication schemes covers all the stages of spill management before, during, and after an accident.

Originality/value

The system acts as a single umbrella of control and administration for efficient and effective oil spill accident management and enhances oil spill accident early warning and alert mechanisms. The system will also enhance decision supports for quick emergency responses and improve real‐time communication and information sharing between responsible agencies.

Details

Disaster Prevention and Management: An International Journal, vol. 19 no. 2
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 1 September 2004

Donal Heffernan and Paula Doyle

In industrial distributed control environments for automation technology, Ethernet network based solutions are gaining prominence in the traditional fieldbus application…

1029

Abstract

In industrial distributed control environments for automation technology, Ethernet network based solutions are gaining prominence in the traditional fieldbus application areas with the promise of standardised solutions that can support real‐time operation to a resolution of less than 1 μm. However, there are no formal standards for a real‐time Industrial Ethernet. This paper looks at some of the emerging de facto solutions and describes a novel project where clusters of real‐time transducer networks are developed and the control is tightly synchronised using the IEEE 1588 clock synchronisation standard, realising a “Time‐triggered Ethernet” solution.

Details

Assembly Automation, vol. 24 no. 3
Type: Research Article
ISSN: 0144-5154

Keywords

Article
Publication date: 1 May 2005

Wenxi Chen, Daming Wei, Shuxue Ding, Michael Cohen, Hui Wang, Shigeru Tokinoya and Naotoshi Takeda

To meet the increasing needs for ubiquitous healthcare, a mobile phone‐based system for monitoring multiple vital signs is under development. In this paper, design and…

Abstract

To meet the increasing needs for ubiquitous healthcare, a mobile phone‐based system for monitoring multiple vital signs is under development. In this paper, design and implementation of the system architecture are described. The hierarchy of this system comprises three layers, which respectively handle multiple vital signs sensing, data/command communication via either wireless or wired means, and healthcare management. The fundamental basis of the sensing layer is a wearable cordless sensor device for monitoring vital signs without discomfort to the user during daily activities. The data communication layer performs bi‐directional information exchange between the sensing layer and the management layer. The uppermost management layer conducts data mining and analysis for risk factors assessment and healthcare. Overall considerations of implementation method and prototype fabrication are outlined. Finally, applicability to a variety of real‐world situations, and provision of customizable solutions not only for home healthcare but also for other vital signs‐related domains (such as emergency rescue and safety guarantee) are discussed. Three of the most promising applications based upon this system are described.

Details

International Journal of Pervasive Computing and Communications, vol. 1 no. 2
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 1 December 2002

Mitsuru Kodama

This paper describes the importance of strategic community creation as a new management style. It verifies that video‐based information networks utilizing information and…

1151

Abstract

This paper describes the importance of strategic community creation as a new management style. It verifies that video‐based information networks utilizing information and multimedia technologies enhance the quality of competencies and knowledge possessed by strategic communities, and it also verifies, through case studies, these networks are valid as organizational learning support systems within the strategic communities. Innovations in the area of veterinary medicine utilizing video‐based information networks over the past four years in Japan are taken as examples. This paper describes how knowledge and competencies within strategic communities comprising “industry, government, and academia” are enhanced, how the new virtual methods of telemedicine and distance learning are incorporated into the business process, and how “concepts of regionally linked cooperative bodies” are realized.

Details

Business Process Management Journal, vol. 8 no. 5
Type: Research Article
ISSN: 1463-7154

Keywords

Open Access
Article
Publication date: 13 January 2020

Claudia Lizette Garay-Rondero, Jose Luis Martinez-Flores, Neale R. Smith, Santiago Omar Caballero Morales and Alejandra Aldrette-Malacara

The purpose of this paper is to present a conceptual model that defines the essential components shaping the new Digital Supply Chains (DSCs) through the implementation…

31906

Abstract

Purpose

The purpose of this paper is to present a conceptual model that defines the essential components shaping the new Digital Supply Chains (DSCs) through the implementation and acceleration of Industry 4.0.

Design/methodology/approach

The scope of the present work exposes a conceptual approach and review of the key literature from 1989 to 2019, concerning the evolution and transformation of the actors and constructs in logistics and Supply Chain Management (SCM) by means of examining different conceptual models and a state-of-the-art review of Industry 4.0’s concepts and elements, with a focus on digitization in supply chain (SC) processes. A detailed study of the constructs and components of SCM, as defined by their authors, resulted in the development of a referential and systematic model that fuses the inherent concepts and roles of SCM, with the new technological trends directed toward digitization, automation, and the increasing use of information and communication technologies across logistics global value chains.

Findings

Having achieved an exploration of the different conceptual frameworks, there is no compelling evidence of the existence of a conceptual SCM that incorporates the basic theoretical constructs and the new roles and elements of Industry 4.0. Therefore, the main components of Industry 4.0 and their impact on DSC Management are described, driving the proposal for a new conceptual model which addresses and accelerates a vision of the future of the interconnectivity between different DSCs, grouped in clusters in order to add value, through new forms of cooperation and digital integration.

Originality/value

This research explores the gap in the current SCM models leading into Industry 4.0. The proposed model provides a novel and comprehensive overview of the new concepts and components driving the nascent and current DSCs. This conceptual framework will further aid researchers in the exploration of knowledge regarding the variables and components presented, as well as the verification of the newly revealed roles and constructs to understand the new forms of cooperation and implementation of Industry 4.0 in digitalized SCs.

Details

Journal of Manufacturing Technology Management, vol. 31 no. 5
Type: Research Article
ISSN: 1741-038X

Keywords

1 – 10 of over 21000