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The Fourth IEEE Workshop on Software Technologies for Future Embedded and Ubiquitous Systems, and the Second International Workshop on Collaborative Computing, Integration, and Assurance (SEUS-WCCIA'06)
The following topics are dealt with: software technology; embedded systems; ubiquitous systems; software architecture and programming model; applications & system support; middleware; RFID & sensor networks; service-oriented architecture; service-oriented verification and validation; Web data representation and evaluation; and Web clusters and servers
A cluster Web-server system can be deployed to support high request rates to Web application server (WAS) in Internet-banking. The domain name system (DNS) servers dispatch the client requests among the Web-servers through the URL-name to IP-address mapping mechanism. In this paper, we propose a cluster Web-server system arranged in the multiple logical ring connections, in which the DNS is integrated...
A real time kernel is an essential component for embedded systems. This research designs a real time operating system for the realization of home monitoring and controlling via power lines or infrared media. We also design a unified medium access control (MAC) protocol so that it is easy for swapping and including different hardware transceivers, such as Bluetooth. The designed platform is low cost,...
In order to provide proper services to a specific user in ubiquitous computing environment, three kinds of knowledge should be considered. Firstly, the service should recognize the current situation. Secondly, the characteristics of user should be considered. As the condition of a service execution depends on the user's trait, the same service should be performed differently according to the served...
This paper describes a negotiation mechanism inserted in a Web server model with differentiated services. All the results of this article have been obtained by means of simulation using for this a queueing network model representing a Web server with QoS. The results also confirm that this new approach enhances the quality of service provided to clients, mainly in overload situations, being an aid...
This paper introduces a general data model, which fits to the demand of storing and processing changeable data structure in e-business. The main idea is to set up a changeable entity storing model by improving the relational data storing model. Using this model, we can store the various types of data without altering the metadata of model. In the model description and processing, it involves technologies...
As the possession of personal mobile devices has recently become commonplace, the mobile device can act as a mediator between users and services in users' environment and the opportunities, and possibilities for collaboration with mobile devices could also be augmented. We present the project Celadon, an infrastructure to enable on demand collaboration between heterogeneous mobile devices and environmental...
This paper presents an alternative approach to memory management in the Ravenscar-Java profile, a high integrity subset of Java and the real-time specification for Java (RTSJ). The profile was engineered for maximum predictability and reliability, which means that any features that incur run-time overheads and difficulties in analysis are cast out. This has led to a memory management model that is...
In a true pervasive world barriers among devices no longer exist. Users can access and manipulate data from anywhere at anytime using a dynamic range of computing devices as they move across different environments. Today's "computer-centric" paradigm however puts increasing demand on user attention impacting overall efficiency. Today, typically a user has to manually figure out the available...
In this paper, we describe the implementation of sentential Korean standard sign language (hereinafter, "KSSL") recognition and representation system using wireless haptic devices based on the post wearable PC. The advantages of our study are as follows: 1) it improves efficiency of KSSL input module according to the technology of wireless communication, 2) it recognizes and represents continuous...
The intrusion detection system (IDS) has as objective to identify individuals that try to use a system in way not authorized or those that have authorization to use but they abuse of their privileges. The IDS to accomplish its function must, in some way, to guarantee reliability and availability to its own application, so that it gets to give continuity to the services even in case of faults, mainly...
This paper presents dynamic skill-based software architecture for locomotion control in shape reconfigurable mobile robots. The paper first describes multi-thread based synchronization locomotion control model, which is applied in a mobile snake robot and physically reconfigured four-legged robot. The robots share common multithreaded software architecture and hardware modules, which use the concepts...
NAND flash memory has emerged as an attractive proposition for embedded storage applications due to its properties of robustness, low price, a high number of write-erase cycles, and large capacities. To make it suitable for real-time embedded applications, this paper presents the design of a log structured file system that utilizes data redundancy and parallel operations to guarantee bounded read-write...
Recent research surrounding Web services has introduced a new software development paradigm, service-oriented architecture (SOA). SOA allows rapid service composition and service dynamic reconfiguration. The efficiency and effectiveness of SOA in software development puts accordingly heavy demands for validation, verification, and evaluation on Web services. In answering various verification demands,...
Nowadays, interdisciplinary applications are gaining more and more importance due to the complex needs of modern industrial and scientific applications. In this paper we introduce a first combined application of two different domains that are semantic Web services and robotics. We first present briefly semantic Web and Web services, then describe the robotics development and their current limitation...
This paper presents a mechanism that automatically build evaluation metadata for grid services by using the information from the execution of different applications. A new MetaService AMDBS, automatic metadata building service, is designed to support this mechanism. The typical feature of this mechanism is that it can get not only the absolute evaluation information, but also the relative global ranking...
With the proliferation of Web services, quality of service (QoS) becomes a key factor to differentiate the Web services and their providers. In selecting a Web service for use, it is important to consider nonfunctional properties of the Web service so as to satisfy the constraints or requirements of users. In this paper, we present a Web services QoS model which takes non-functional properties into...
Web services (WS) is currently the major implementation of service-oriented architecture (SOA). It defines a framework for agile and flexible integration among autonomous services based on Internet open standards. However, testing has been a challenge due the dynamic and collaborative nature of WS. This paper introduces an on-going project on a multiagent based framework to coordinate distributed...
Demand of multimedia contents in home network is growing rapidly and UPnP is expected to bring better multimedia experience with various A/V devices. However, UPnP A/V architecture, which allows the multimedia contents to be shared between A/V devices, is limited to the environments where interoperable contents format and identical network protocols are used. In this paper, we propose an intelligent...
Situation awareness is one of the most fundamental features of entities in pervasive computing environments to dynamically adapt their behavior to situation changes to satisfy user requirements, including security and privacy. In order to support situation-aware adaptation, it is necessary to model and specify context and situation in a way such that multiple entities can easily exchange, share and...
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