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Front-line Researchers-
 Dr. Shingo Tsukada, Senior Distinguished Researcher, NTT Basic Research Laboratories
Abstract
The Molecular and Bio Science Research Group has fabricated material for use as biomedical electrodes to continuously measure heartbeat and obtain electrocardiograms by simply wearing an item of clothing. Dr. Shingo Tsukada, a medical doctor-turned-researcher and an NTT Senior Distinguished Researcher in this group, expects hitoe, a textile developed jointly with Toray Industries, Inc. that incorporates these electrodes, to be useful in detecting latent diseases early. We asked him about the mindset that modern researchers should adopt and how the development of a healthy body can promote creative thinking in research.
Feature Articles: Technologies for Promoting Use of Open Source Software that Contribute to Reducing TCO of IT Platform-
OSSMA: Facilitating Migration to OSS
Abstract
The NTT Open Source Software Center promotes the use of open source software (OSS) in order to reduce the total cost of ownership of systems within the NTT Group of companies. It also provides total support related to OSS migration in the form of its OSS Migration Assist (OSSMA) service. This article introduces OSS migration technologies, describes the OSSMA service and its benefits, and gives some application examples.
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HeapStats: Your Dependable Helper for Java Applications, from Development to Operation
Abstract
HeapStats is an open source software monitoring and analysis tool developed by the NTT Open Source Software Center. HeapStats enables people to monitor detailed runtime information about the heap memory (an area of memory) managed by the Java Virtual Machine with minimal effect on the performance of the Java application. HeapStats helps to resolve problems rapidly when debugging during development, testing, and operation. This article introduces HeapStats and its strengths, application scenarios, and examples of analysis using it.
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TUBAME: A Tool for Studying Java Application Migration
Abstract
The NTT Open Source Software Center is developing a tool that automatically identifies sections of applications needing revision and computes the cost of making the revisions when migrating a Java application, and has made it available as open source software (OSS). This tool reduces the amount of manual work required to perform the migration and supports a quantitative study of the effects of migration on Java applications. This article gives an overview of the tool and its strengths and illustrates its effectiveness through an application example.
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Faster System Building with No Reworking! OSSVERT Smart Builder
Abstract
The scale of systems that provide numerous and diverse services continues to increase. The NTT Open Source Software Center has developed the OSSVERT Smart Builder tool to reduce the amount of work required and the number of errors that occur when building and managing OSS (open source software) systems. In this article, we describe various aspects of the tool, including its features and technical details, and we report on its effectiveness verified using real equipment.
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Pacemaker: Increasing System Reliability
Abstract
The NTT Group builds and operates many systems that provide various services internally and externally. These systems are required to have less down time. In this article, we introduce the latest trends concerning Pacemaker, the high-availability cluster software that enables highly reliable systems. We also report on the efforts of the NTT Open Source Software Center in this area.
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PostgreSQL: Leader in Cost Reduction
Abstract
The NTT Open Source Software Center is conducting research and development on the PostgreSQL open-source database management system in order to develop and spread open source software (OSS). Recent advances in the development of PostgreSQL have brought it to a level of usability adequate for commercial systems, and due to its great cost-reducing effects relative to commercial products, it is receiving much attention and even being introduced for core systems. In this article, we introduce new functionality in the latest version, PostgreSQL 9.3, released in September 2013, and outline NTT's OSS development policies. We also introduce the SQL/MED (Structured Query Language/Management of External Data) indexing engine, which was developed by the authors as infrastructure for log analysis and an area for expanding applications of PostgreSQL.
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Linux and KVM Activities Providing Foundational Support for Use of OSS
Abstract
The NTT Open Source Software Center is working on various aspects of Linux and Kernel-based Virtual Machine (KVM) to support the use of open source software (OSS) within the NTT Group. In this article, we introduce some of these activities, which include building expertise in order to use OSS with confidence, improving the quality of OSS products by cooperating with development communities, and promoting OSS virtualization technology.
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Dramatic Changes in Java Troubleshooting!—Pursuing Uncompromising Low-overhead Implementations
Abstract
This article focuses on the work of one of the researchers who contributed to a Feature Article in this issue.
Regular Articles-
Inspection Prioritizing Technique for Early Discovery of Defective Facilities—Manhole Facility Inspection Prioritization
Abstract
There are approximately 680,000 manholes throughout Japan, and as most of these facilities were built more than 30 years ago, aging-related problems have begun to appear. Consequently, the maintenance and management of communications-infrastructure facilities carried out from this point on will become increasingly important and will have to be done in a more efficient manner. In this article, we introduce a technique for analyzing data previously collected during facility inspections and for giving priority to inspecting facilities with a high probability of deterioration in order to achieve early discovery of defective manholes.
Global Standardization Activities-
Standardization Trends Relating to Smart TV
Abstract
Smart TV (television), which implements advanced TV services, has been receiving a lot of attention throughout the world recently. Standardization of smart TV as technology relating to receivers and services is underway by both the International Telecommunication Union and the World Wide Web Consortium. These standardization trends are explained in this article.
Practical Field Information about Telecommunication Technologies-
Fault Cases and Countermeasures for Optical Fiber Cables in Optical Network Facilities
Abstract
This article introduces case studies of failures that have occurred in optical fiber cables as well as some countermeasures against such failures. This is the twenty-third of a bimonthly series on the theme of practical field information on telecommunication technologies. This month's contribution is from the Access Network Engineering Group, Technical Assistance and Support Center, Maintenance and Service Operations Department, NTT EAST.
New NTT Colleagues
Papers Published in Technical Journals and Conference Proceedings
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