scholarly journals A multi-version data model for executing real-time transactions in a mobile environment

2001 ◽  
Author(s):  
Kam-Yiu Lam ◽  
Guo Hui Li ◽  
Tei-Wei Kuo
Keyword(s):  
Real Time ◽  
Data Model ◽  
Mobile Environment

Context-Based Data Model for Effective Real-Time Learning Analytics

2020 ◽  
Vol 13 (4) ◽  
pp. 790-803
Author(s):  
Kai Liu ◽  
Sivanagaraja Tatinati ◽  
Andy W. H. Khong
Keyword(s):  
Real Time ◽  
Data Model ◽  
Learning Analytics

scholarly journals Data Warehouse Schemas using Multidimensional Data Model for Retail

2017 ◽  
Vol 2 (1) ◽  
pp. 84
Author(s):  
Kheri Arionadi Shobirin ◽  
Adi Panca Saputra Iskandar ◽  
Ida Bagus Alit Swamardika
Keyword(s):  
Decision Making ◽  
Real Time ◽  
Data Warehouse ◽  
Data Model ◽  
Transaction Processing ◽  
Multidimensional Data ◽  
Complex Query ◽  
On Line ◽  
Analytical Processing ◽  
Operational Data

A data warehouse are central repositories of integrated data from one or more disparate sources from operational data in On-Line Transaction Processing (OLTP) system to use in decision making strategy and business intelligent using On-Line Analytical Processing (OLAP) techniques. Data warehouses support OLAP applications by storing and maintaining data in multidimensional format. Multidimensional data models as an integral part of OLAP designed to solve complex query analysis in real time.

An Integrated Process Planning System Architecture for Machining and On-Machine Inspection

2008 ◽  
Author(s):  
Yaoyao F. Zhao ◽  
Xun W. Xu ◽  
Sheng Q. Xie ◽  
Tom R. Kramer ◽  
Fred M. Proctor ◽  
...  
Keyword(s):  
Real Time ◽  
Process Planning ◽  
System Architecture ◽  
Data Model ◽  
Machining Process ◽  
Planning System ◽  
Integrated Process ◽  
Process Planning System ◽  
Inspection Process ◽  
Manufacturing Chain

Inspection is an essential part of the entire manufacturing chain providing measurement feedback to the process planning system. Fully automated machining requires automatic inspection process planning and real-time inspection results feedback. As inspection process planning is still based on G&M codes containing low-level information or vendor-specific bespoke routines, inspection process planning is mostly isolated from machining process planning. With the development of new data model standards STEP and STEP-NC providing high-level product information for the entire manufacturing chain, it is achievable to combine machining and inspection process planning to generate optimal machining and inspection sequences with real-time measurement results feedback. This paper introduces an integrated process planning system architecture for combined machining and inspection. In order to provide real-time inspection feedback, On-Machine Inspection (OMI) is chosen to carry out inspection operations. Implementation of the proposed architecture has been partially carried out with a newly developed data model and interpreter software. A case study was carried out to test the feasibility of the proposed architecture.

Engineering Three-Dimensional Digital Modeling Technology Based on the OGRE Graphics Engine

2012 ◽  
Vol 263-266 ◽  
pp. 1407-1413
Author(s):  
Lu Shuang Wei ◽  
Ying Wang
Keyword(s):  
Real Time ◽  
Data Model ◽  
Field Model ◽  
Three Dimensional ◽  
Time Model ◽  
Modeling Technology ◽  
Time Simulation ◽  
Digital Modeling ◽  
Graphic Construction ◽  
Graphics Engine

In order to solve the problem that the engineering three-dimensional data field model in the virtual reality environment cannot be modified in real time and cannot carry out dynamic simulation, this paper proposes the skeleton grid modeling technology and establishes an engineering three-dimensional data model based on the OGRE graphics engine, which achieves a data-driven dynamic three-dimensional graphic construction. The technology has the ability to modify the real-time model grid geometry and topological characteristics, and provides the possibility of real-time simulation for large projects.

Transaction Issues in Mobile Distributed Real-Time Database Systems

2019 ◽  
Vol 13 ◽  
Author(s):  
Prakash Kumar Singh ◽  
Udai Shanker
Keyword(s):  
Real Time ◽  
New Technology ◽  
Database Systems ◽  
Industrial Applications ◽  
Distributed Applications ◽  
Mobile Environment ◽  
Research Issues ◽  
Database Technology ◽  
Real Time Database ◽  
Performance Issues

In recent years, a large number of populations are dependent on mobile database technology and it is difficult for us to imagine our lifestyle in absence of database. Today’s portable handy mobile devices take part in emerging new technology for sharing distributed applications or/ and information between many users even on the move (from one network to another). To manage this resulting large Volume of data in a wireless environment with time constraints such as deadline making it the fertile land of research for researchers. Fast transaction processing in many industrial applications is needed efficient algorithm and protocols in the field of mobile distributed real-time database (MDRTDBS). Transaction execution in a mobile environment has various interesting research issues like low bandwidth, storage capacity, power backup, priority scheduling policy, and concurrency and commits protocols, security, check-pointing etc. At first in our paper, we address performance issues that are important to MDRTDBS and then survey the various researches that have been done so far. In fact, this paper provides ground knowledge for addressing the performance issues important for mobile distributed real-time database and somehow helping to find out the future area of research in the field of MDRTDBS.

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