February 2017 Vol. 15 No. 2

Feature Articles: Improving Productivity in Software Development Using Macchinetta Framework

• Improving Productivity of Software Development on the Macchinetta Framework

  

  Abstract
  The NTT Software Innovation Center aims to provide high quality services in a timely manner while reducing total cost of ownership. To achieve this goal, it is necessary to develop new software rapidly and stably. This article introduces technology for improving the productivity of software development on the Macchinetta framework, which uses the same open source programs as conventional software development.

• Improving the Efficiency of Application Development Based on the Macchinetta Framework

  

  Abstract
  At the NTT Software Innovation Center, we are working to improve the stability and productivity of software development throughout the entire NTT Group by conducting research and development on new software development techniques and making these techniques accessible to developers. This article introduces our work on the Macchinetta framework that we developed in order to produce web-based enterprise applications more efficiently on the Macchinetta tool suite that commonizes development tools, and on the Macchinetta talent pool that provides talented developers to support efficient development.

• Test Automation Technology to Promote Early and Frequent Releases of Software at Low Cost

  

  Abstract
  There is growing demand to speed up the software release cycle while holding down costs in order to rapidly deploy services that meet the changing needs of end users. Considerable interest has been focused on technology for software testing, which accounts for a large share of total development costs, to ensure a certain level of software quality. In this article, we introduce some concrete measures at NTT for supporting test design and verification of test results in software testing.

• A Quick Software Development Method for Improving Competitiveness of Services

  

  Abstract
  Environmental changes surrounding our society are becoming more uncertain, and therefore, the development of services must be more flexible than ever. To adapt to such an environment while continuously receiving feedback from the market and our customers, we urgently need to switch to iterative and incremental software development. This article presents an analysis of problems concerning responses to changes in the environment, with a focus on devising effective methods for developing software. First, as an alternative to conventional software development methods, we introduce BizDevOps―an approach that enables rapid development through unified teams. Then we introduce a framework as an alternative to re-engineering, which takes several years. Specifically, we explain a re-engineering model in which multiple One Team groups simultaneously develop software in an iterative and incremental manner by working together with other teams while each team shares the same concept model.

Regular Articles

• Graphene p-n Junction as an Electronic Beam Splitter

  

  Abstract
  N-type and p-type regions in graphene can adjoin without a gap in between. This article explains how such characteristic p-n junctions can serve as beam splitters of electrons. Utilizing the long coherence length of electrons in graphene may make it possible to carry out an electron version of quantum optics.

• World’s Highest Density Optical Fiber for Space Division Multiplexing with Deployable Reliability

  

  Abstract
  Space division multiplexing (SDM) technology has been intensively investigated in order to substantially increase the network capacity of optical fiber telecommunication. Multi-core or multi-mode fiber is a promising candidate for next-generation optical fiber. In this article, we describe our optical fiber for SDM transmission that can realize 100 times larger capacity than that of standard single-mode fiber while maintaining deployable mechanical reliability.

Global Standardization Activities

• Quality Estimation Technique for Video Streaming Services

  

  Abstract
  The use of adaptive bitrate video streaming services over the network is increasing. The quality of these services is affected by video resolution, audio and video bitrates, bitrate adaptation, stalling due to the lack of playout buffer, and content length. Therefore, service providers need to monitor quality in real time in order to verify that their services are functioning normally. A model that can be used to estimate quality is necessary in order to accurately monitor quality. This article introduces a quality estimation technique that assesses user quality of experience of audiovisual content in adaptive bitrate streaming services.

Practical Field Information about Telecommunication Technologies

• Fax Transmission Failure Analysis Method Requiring Multi-signal Analysis

  

  Abstract
  This article describes a problem a customer had involving facsimile transmission failure and how it was resolved through analysis of multiple signals. This is the thirty-eighth article in a series on telecommunication technologies. This contribution is from the Network Interface Engineering Group, Technical Assistance and Support Center, Maintenance and Service Operations Department, Network Business Headquarters, NTT EAST.

Short Reports

• Experimental Test of Macroscopic Realism Problem Using a Superconducting Flux Qubit

External Awards/Papers Published in Technical Journals and Conference Proceedings

• External Awards/Papers Published in Technical Journals and Conference Proceedings