Shinichi Yamada

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Recent developments in network and sensor device technologies enable us to easily obtain real-world information, such as locations of moving objects and environment information including brightness and temperature. These data are continuously supplied as they change over time, and they are regarded as data streams. The requirements for online processing of(More)
Development environments have changed drastically, development periods are shorter than ever and the number of team members has increased. These changes have led to difficulties in controlling the development activities and predicting when the development will end. Especially, quality managers try to control software reliability and project managers try to(More)
It is important for project stakeholders to identify the states of projects and quality of products. Although metrics are useful for identifying them, it is difficult for project stake-holders to select appropriate metrics and determine the purpose of measuring metrics. We propose an approach that defines the measured metrics by GQM method to identify(More)
It is important for project stakeholders to identify the states of projects and quality of products. Although metrics are useful for identifying them, it is difficult for project stakeholders to select appropriate metrics and determine the purpose of measuring metrics. We propose an approach that defines the measured metrics by GQM method, and supports(More)
The communication services and an experimental system for the integrated office information system &#8220;<italic>Lumiere</italic>&#8221; are shown. The Lumiere provides office users with advanced integrated communication services. Different types of information not only data, text, image, and voice but also time, information to synchronize the reproduction(More)
We introduced digital X-ray diagnostic systems with Flat panel detector both in general X-ray systems and in Angiography systems. Our introduced Flat Panel Detector has the latest technology and has Cesium Iodide (CsI) that absorbs X-ray energy and generates visible light. Detected light signals make digital X-ray images. CsI is the most important material(More)