Rich Internet Application (RIA) has been proposed in order to solve the problems of current web applications. The user experience of current web applications is not comparable to desktop applications. RIA provides sophisticated interfaces for representing complex processes and data. Therefore, it requires collaboration between designers who design the interface and animation of an application and developers who implement business logics. In the development process of an application, the change of design is usually happened and it requires not only designer's work but also developer's work.Therefore, it costs a lot in large scaled applications. This paper provides a system which can provide complete separation of designer's and developer's work in source code level in order to reduce development costs for RIAs. In addition, we introduce this system into a practical system and evaluate its utility.

An ID recognition system is described that uses optical beacons and a high-speed image sensor. The ID sensor captures a scene like an ordinary camera and recognizes the ID of a beacon emitted over a long distance. The ID recognition system has three features. The system is robust to changes in the optical environment, e.g. complete darkness, spotlights, and sunlight. It can recognize up to 255 multiple optical beacons simultaneously. Furthermore, it can recognize beacons even over a long distance, e.g. 40 m indoors and 20 m outdoors. Implementation and evaluation of this ID recognition system showed that a mobile augmented reality system can be achieved by combining this ID recognition system with a PDA and a wireless network.

The construction of systems for network management (NMS) is based on software components (hereunder referred to as "components"). Two types of component are used to build NMS: off-the-shelf components for general use, and customized components designed for a specific operator. However user requirements may also change after the user starts to use the NMS, and some components may be inadequate for these new requirements. In this paper, we propose components that enable functions provided by off-the-shelf components to be customized after NMS construction. We call these components RevCompo. RevCompo components intercept messages transmitted from or sent to an off-the-shelf component providing the functions to be customized. The RevCompo component in question then adds new data and/or procedures externally, or removes functions provided by the off-the-shelf component. Consequently, it is not necessary to change an off-the-shelf component in order to customize its function if RevCompo is installed. RevCompo makes it easier to satisfy user requirements when there are changes or modifications after the NMS construction stage.

The natural immune system is a subject of great research interest because it provides powerful and flexible information processing capabilities as a complex adaptive system. This paper describes our extensible framework, named iNet, for building artificial immune systems, particularly artificial immune networks, which has been used in several of our projects developing biologically-inspired intelligent applications. We describe the iNet architecture, its design principles and features, highlighting its versatility and component reusability. We also describe an autonomous decentralized network application built with iNet as a sample use case for showing how to use it.