Rediscovery of Pattern Language from an Information Systems Viewpoint

Software engineering yielded the big fruits of the Design Patterns and POSA and so forth by using the Pattern Language of architectonics, but they only focused on the side of the format of the pattern as know-how description. Focusing on another side of the Pattern Language—"timeless way" as continuous activities—we can see that the Pattern Language is an ideal mechanism to incorporate the requirements and the design constraints of information systems into itself as organization learning. In this paper, "The Information Systems Cycle" is provided for the building process of the enterprise information systems from such a viewpoint, and the meaning and the problem of incorporating the Pattern Language into the cycle are discussed

Collaboration Mechanism for Mobile IP-based Link Aggregation System

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A Multicast Routing Algorithm Based on Mobile Multicast Agents in Ad-Hoc Networks

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Implementation of cluster control manager for multiple wireless links sharing systems

Abstract — Over the last few years, a variety of access technologies have been deployed. In a multiple access technology environment, mobile hosts have multiple network interfaces. We have proposed a SHAring multiple paths procedure for a cluster networK Environment (SHAKE) to achieve high-speed data transmission in such heterogeneous network environments. In SHAKE, mobile hosts that are connected by a fast local link –we call this type of network a cluster network – use multiple long-range wireless links co-owned by all hosts simultaneously to communicate with hosts on the Internet. In this paper, we describe a SHAKE Cluster Control Manager (SCCM) that sets up the cluster network autonomously and provides suitable shared network resource information for SHAKE. In some basic experiments, we show the features of SCCM and demonstrated that each host’s communication performance is guaranteed even when a competitor appears within the cluster network. I