Mash Droid: An Approach to Mobile-Oriented Dynamic Services Discovery and Composition by In-App Search

Author(s):  
Yun Ma ◽  
Xuanzhe Liu ◽  
Meihua Yu ◽  
Yunxin Liu ◽  
Qiaozhu Mei ◽  
...  
Keyword(s):  
Author(s):  
Mauricio Tia Ni Gong Lin ◽  
Thomaz Philippe Cavalcante Silva ◽  
Roberto Oliveira dos Santos ◽  
Andre Ferreira da Silva Neto
Keyword(s):  

Author(s):  
Wissam Abbass ◽  
Amine Baina ◽  
Mostafa Bellafkih

The rapid growth of the world's population is placing a huge strain on the existing infrastructures. As a quest for accommodating this growth, interest is turned to the internet of things (IoT). In fact, the IoT is significantly improving today's quality of life by innovating the provided services and enhancing communication and interaction. Furthermore, it has also empowered real-time decision making by introducing dynamic services for innovative traffic handling, energy-efficient infrastructure saving, and public safety ensuring. However, IoT applications for smart cities is still a major issue as it lacks assuring privacy and security within provided services. In this chapter, the authors pinpoint IoT's security risk assessment challenges and examine its critical influence on smart cities. Additionally, they highlight the key aspects characterizing a smart city which also represent the critical assets requiring security risk assessment. Moreover, they discuss the resulting issues and their related countermeasures.


2020 ◽  
Vol 17 (9) ◽  
pp. 3927-3933
Author(s):  
B. Vineetha ◽  
M. Sumana

As network component is increasing, the managing and controlling systems from a central based control system becomes very complex. The technology used to resolve this is called Software Defined Networks (SDN) which helps to manage and control the system through programs. SDN stands as a developing technique that divides single network as data and control plane. The benefit of SDN are provides more performance, managing the packet flow through diverse dealer’s organization components. The complexities continued to raise when implementing network services both from technical and organizational views. Here in this paper generally focuses on how organizations can deal with the challenge of introducing service chaining and developing critical network services by using the technology SDN and also delivering diverse services of network to user in one system thus customers can fulfill their desire of services based on requests. The “Service Function Chaining” facility of SDN provides services like Load Balancing, Video Optimizing and Firewall.


SIMULATION ◽  
2010 ◽  
Vol 87 (11) ◽  
pp. 915-931 ◽  
Author(s):  
Mohammed A Muqsith ◽  
Hessam S Sarjoughian ◽  
Dazhi Huang ◽  
Stephen S Yau

Simulation of dynamic service-based software systems is important for studying services that may change their composition and thus interactions at run-time. An approach based on Service Oriented Architecture-compliant DEVS (SOAD) and Dynamic Structure DEVS (DSDEVS) modeling approaches is developed to support structural changes in service model composition. To achieve this goal, a broker–executive model is devised based on the broker model defined for SOAD and the executive model defined for DSDEVS. The capability to simulate dynamic services is incorporated to the DEVS-Suite simulator. To demonstrate modeling of dynamic service-based software systems, a real voice communication system and a model of this system have been developed. The importance of enabling simulation-based design for adaptable systems is briefly discussed.


2011 ◽  
Vol 2 (3) ◽  
pp. 544-551
Author(s):  
Tom Kirkham ◽  
Sandra Winfield ◽  
Thorsten Haberecht ◽  
Jens Müller ◽  
Guglielmo De Angelis

Author(s):  
Antonia Bertolino ◽  
Guglielmo De Angelis ◽  
Antonino Sabetta ◽  
Andrea Polini

Service Oriented Architecture (SOA) is changing the way in which software applications are designed, deployed and maintained. A service-oriented application consists of the runtime composition of autonomous services that are typically owned and controlled by different organizations. This decentralization impacts on the dependability of applications that consist of dynamic services agglomerates, and challenges their validation. Different techniques can be used or combined for the verification of dependability aspects, spanning over traditional off-line testing approaches, monitoring, and on-line testing. In this chapter we discuss issues and opportunities of SOA validation, we identify three different stages for validation along the service life-cycle model, and we overview some proposed research approaches and tools. The emphasis is on on-line testing, which to us is the most peculiar stage in the SOA validation process. Finally, we claim that on-line testing is only possible within an agreed governance framework.


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