Collaboration and Virtual Early Prototyping Using the Distributed Building Site Metaphor

2011 ◽  
pp. 290-332 ◽  
Author(s):  
Fabien Costantini ◽  
Christian Toinard
Keyword(s):  
Quality Of Service ◽  
Project Management ◽  
Real Time ◽  
The Other ◽  
Building Site ◽  
Virtual Scene ◽  
Time Awareness

The case study is derived into a set of general requirements for a VEP tool. Thus, the major functional services are identified. Afterwards, the chapter presents a new solution to satisfy the VEP requirements. It proposes new collaboration services that can be used to distribute a virtual scene between the designers. Our solution, called the Distributed Building Site Metaphor, enables project management, meeting management, parallel working, disconnected work and meeting work, real-time validation, real-time modification, real-time conciliation, real-time awareness, easy motion between these styles of work, consistency, security and persistency. In contrast with the other solutions, our services enable parallel work while preserving consistency. These services do not require or implement a reliable multicasting. They are fully distributed and do not require any specific quality of service from the under laying network. DBSM can add collaboration to any stand-alone application.

Multicast of Multimedia Data

2008 ◽  
pp. 1781-1788
Author(s):  
Christos Bouras ◽  
Apostolos Gkamas ◽  
Dimitris Primpas ◽  
Kostas Stamos
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Heterogeneous Network ◽  
Multimedia Data ◽  
The Other ◽  
The Internet ◽  
Service Guarantees ◽  
Tcp Friendly ◽  
Real Time Applications

The heterogeneous network environment that Internet provides to real time applications as well as the lack of sufficient QoS (Quality of Service) guarantees, many times forces applications to embody adaptation schemes in order to work efficiently. In addition, any application that transmits data over the Internet should have a friendly behaviour towards the other flows that coexist in today’s Internet and especially towards the TCP flows that comprise the majority of flows. We define as TCP friendly flow, a flow that consumes no more bandwidth than a TCP connection, which is traversing the same path with that flow (Pandhye 1999).

Multicast of Multimedia Data

2008 ◽  
pp. 316-322
Author(s):  
Christos Bouras ◽  
Apostolos Gkamas ◽  
Dimitris Primpas ◽  
Kostas Stamos
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Heterogeneous Network ◽  
Multimedia Data ◽  
The Other ◽  
The Internet ◽  
Service Guarantees ◽  
Tcp Friendly ◽  
Real Time Applications

The heterogeneous network environment that Internet provides to real time applications as well as the lack of sufficient QoS (Quality of Service) guarantees, many times forces applications to embody adaptation schemes in order to work efficiently. In addition, any application that transmits data over the Internet should have a friendly behaviour towards the other flows that coexist in today’s Internet and especially towards the TCP flows that comprise the majority of flows. We define as TCP friendly flow, a flow that consumes no more bandwidth than a TCP connection, which is traversing the same path with that flow (Pandhye 1999).

Semantics-Based Scheduling Approach of Ontology-Based Real-Time DBMS

2021 ◽  
Author(s):  
Fehima Achour ◽  
Wassim Jaziri ◽  
Emna Bouazizi
Keyword(s):  
Quality Of Service ◽  
Feedback Control ◽  
Real Time ◽  
Database Management ◽  
The Other ◽  
Time Constraints ◽  
Earliest Deadline First ◽  
The Subject ◽  
Earliest Deadline

Real-time DBMSs (DataBase Management Systems) are designed to manage transactions with time constraints and maintain the database consistency. The Quality of Service (QoS) in these systems is often evaluated based on the number of transactions satisfying their deadlines using a Feedback Control Scheduling Architecture (FCS). In this context, we are interested in the recently proposed FCS for Real-Time Ontology (FCSRTO) allowing to manage real-time ontological data, to which a specific execution of transactions is proposed. Being essential for the execution process of transactions, scheduling has been the subject of a recent work proposing the Advanced Earliest Deadline First based on Transactions Aggregation Links and Data Semantic Links (AEDF-TAL-DSL) as a scheduling protocol. It is mainly based on considering the aggregation links existing between transactions as well as the semantic links appearing between the users queries as scheduling parameters. Our work is to propose a new QoS approach called Semantics-Based FCSRTO. Our approach consists in combining the FCSRTO and the AEDF-TAL-DSL in a same architecture. Hence, we are improving the FCSRTO by using a sophisticated scheduling protocol on one hand, and on the other, it improves the AEDF-TAL-DSL scheduling protocol by managing transactions accessing to real-time ontological data. We also show the contributions provided by our QoS approach through a set of simulations.

Use of Cloud Computing in Project Management

2015 ◽  
Vol 791 ◽  
pp. 49-55
Author(s):  
Jolanta Słoniec
Keyword(s):  
Cloud Computing ◽  
Project Management ◽  
The Other ◽  
Business Activity ◽  
Technical Documentation ◽  
Railway Station ◽  
Erp System ◽  
International Enterprise

The paper presents the possibility of using cloud computing in project management. Cloud computing is the most rapidly growing field of IT and is used in many areas of business activity. Modern companies and organizations carry out many activities in the form of projects. Case study of two projects using cloud computing shows that it is possible and can be successful use of cloud computing in project management. The first project involved the transfer of ERP system in an international enterprise, and the other, a smaller one, involved the implementation of technical documentation in railway station reconstruction. The scope of the projects were different and the using of cloud computing were different. Finished projects testify to the fact that the project needs may impinge on the different ways to use cloud computing. And that the projects can be successful.

scholarly journals Comparison of Multicast Algorithm Evaluation Results in Low and High Multicast Saturation Environments

2019 ◽  
Vol 3 ◽  
pp. 3-7
Author(s):  
Krzysztof Stachowiak ◽  
Piotr Zwierzykowski
Keyword(s):  
Quality Of Service ◽  
Computational Complexity ◽  
Optimization Methods ◽  
The Other ◽  
Ongoing Research ◽  
Mathematical Problems ◽  
Point To Point ◽  
Difficult Challenge ◽  
Entire Network

The multicast quality of service-enabled routing is a computationally challenging task. Despite ongoing research efforts, the associated mathematical problems are still considered to be NP-hard. In certain applications, computational complexity of finding the optimal connection between a set of network devices may be a particularly difficult challenge. For example, connecting a small group of participants of a teleconference is not much more complex than setting up a set of mutual point-to-point connections. On the other hand, satisfying the demand for such services as IPTV, with their receivers constituting the majority of the network, requires applying appropriate optimization methods in order to ensure real system execution. In this paper, algorithms solving this class of problems are considered. The notion of multicast saturation is introduced to measure the amount of multicast participants relative to the entire network, and the efficiency of the analyzed algorithms is evaluated for different saturation degrees.

scholarly journals The Relationship between the Number of Emergency Room Patient Visits with Triage Accuracy and Emergency Nurse Response Time in the Covid 19 Pandemic Season

2021 ◽  
Vol 3 (1) ◽  
pp. 21-24
Author(s):  
Ali Humardani ◽  
Yuly Peristiowati ◽  
Agusta D. Ellina
Keyword(s):  
Quality Of Service ◽  
Response Time ◽  
Search Strategy ◽  
The Other ◽  
Bleeding Control ◽  
Electronic Database ◽  
Standard Operating ◽  
The Relationship ◽  
Spine Control

Handling emergency cases must not only be carried out quickly but also must be precise. Standard Operating Procedures (SOP) is one of the instruments to measure the quality of service. the number of patient visits that can affect the quality of service. Triage is a way of sorting patients based on therapy needs and available resources. Therapy is based on ABC conditions (Airway, with cervical spine control, Breathing, and Circulation with bleeding control). On the other hand, the COVID-19 pandemic greatly affects the response time, impacting the number of patient visits. Response time is the time between the beginning of a request being responded to in other words it can be called response time. A good response time for patients is 5 minutes. The purpose of this study was to identify the relationship between the number of patient visits and the accuracy of triage implementation and response time. The electronic database used is PubMed, Springer, and Google Scholar with a search strategy using the PICO (patient, intervention, comparison, and outcome) method.

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