The WieDAS AAL Platform: Architecture and Evaluation

Author(s):  
Reinhold Kröger ◽  
Wolfgang Lux ◽  
Ulrich Schaarschmidt ◽  
Jan Schäfer ◽  
Marcus Thoss ◽  
...  
Author(s):  
Jang-Mook Kang ◽  
Yong Soon Im ◽  
Ki Young Lee ◽  
Myung Jae Lim ◽  
Young Dae Lee ◽  
...  

2021 ◽  
pp. 097215092110056
Author(s):  
Kanupriya Sethi ◽  
Baidyanath Biswas ◽  
Krishna Chandra Balodi

Adoption of an electronic marketplace (EM) business model for business-to-business (B2B) transactions has increased over the years. In part, this evolution and adoption of B2B EMs can be explained by the Internet-enabled disintermediation of the existing value chains of businesses, followed by cybermediation. This study aims to understand the platform architecture design and governance-related factors and strategic choices that influence the success of B2B EM start-ups. We draw from the literature on the ‘Temple Framework’ and the classification of B2B EMs by transaction content, structure, and governance to identify these critical factors. Given that the literature is primarily based in the context of developed economies, the factors and choices identified from the review are empirically validated using three case studies in the Indian B2B context. Thus, this exploratory study aims to help founder managers of emerging-economy B2B EMs by providing a checklist to avoid common pitfalls.


2020 ◽  
Vol 10 (15) ◽  
pp. 5212
Author(s):  
Youhwan Seol ◽  
Jaehong Ahn ◽  
Sehyun Park ◽  
Mookeun Ji ◽  
Heungseok Chae ◽  
...  

Decentralization and immutability characteristics of blockchain technology has attracted numerous blockchain-based systems and applications to be proposed. However, technical shortcomings such as low transaction speed, complexity, scalability, and vulnerability to certain attacks have been identified, making it challenging to use the technology on general consumer applications and services. To address the problem, we propose a new application service platform architecture called DDNB (Doubly Decentralized Network Blockchain). DDNB divides the system into multiple layers in order to take advantage of permissioned blockchain for its processing speed and security, while allowing permissionless open use of the system to application developers. To allow any node to freely participate in application services, DDNB adopts a novel periodic node self-verification process and query chaining mechanism to authenticate newly joining nodes and validate transactions effectively and efficiently. The proposed architecture is evaluated in terms of its processing speed and security on a real proof-of-concept prototype system.


2013 ◽  
Vol 726-731 ◽  
pp. 3506-3512 ◽  
Author(s):  
Shu Yuan Li ◽  
Jian Hua Tao ◽  
Lei Yu

Zhangweinan basin is a typical area where has the most serious water resource shortage and water environmental deterioration problems in north of China. To improve the increasingly deteriorated water eco-environment, studies on the integrated management of water resources and water environment in the basin were carried out with focus on the prevention and control of water pollution, and based on which, an integrated management platform on water environment was developed. This paper introduces the platform architecture and elaborates the construction process of the total pollutant load control model and pollution incident early warning model. This platform provides technical supports for weakening the total pollutant load in the basin, reducing the pollutant load flowing into the Bohai Sea, and increasing the eco-flow of river channel and flow into the Bohai Sea.


2017 ◽  
Vol 17 (2) ◽  
pp. 185-196
Author(s):  
Mario Scalas ◽  
Palmalisa Marra ◽  
Luca Tedesco ◽  
Raffaele Quarta ◽  
Emanuele Cantoro ◽  
...  

Abstract. This article describes the architecture of sea situational awareness (SSA) platform, a major asset within TESSA, an industrial research project funded by the Italian Ministry of Education and Research. The main aim of the platform is to collect, transform and provide forecast and observational data as information suitable for delivery across a variety of channels, like web and mobile; specifically, the ability to produce and provide forecast information suitable for creating SSA-enabled applications has been a critical driving factor when designing and evolving the whole architecture. Thus, starting from functional and performance requirements, the platform architecture is described in terms of its main building blocks and flows among them: front-end components that support end-user applications and map and data analysis components that allow for serving maps and querying data. Focus is directed to key aspects and decisions about the main issues faced, like interoperability, scalability, efficiency and adaptability, but it also considers insights about future works in this and similarly related subjects. Some analysis results are also provided in order to better characterize critical issues and related solutions.


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