• Title/Summary/Keyword: Software Studies

Search Result 2,375, Processing Time 0.029 seconds

A Study of Quality Evaluation for SDR System Operating Software (SDR 시스템의 운용소프트웨어 품질평가에 관한 연구)

  • Kim, Min-Soo;Lee, Kun-Joon;Ha, Sung-Jae;Cho, Sang-Young
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.24 no.6
    • /
    • pp.657-664
    • /
    • 2014
  • In this paper, we described evaluation software that can propose rating scale and evaluate automatically on SDR(Software-Defined Radio) transmitter system. To deduct suitable rating scale, we extracted requirements based on the operating environment, operating application and operating method because SDR operating software is subordinative to the hardware. And we implementation evaluation software to automatically quality evaluation using rating scale draw from the requirements. The implemented evaluation software has automatically evaluation functions using script, can update the evaluation factor and show visual evaluation result. The implemented evaluation software is used to useful the high quality SDR operating software development.

Comparing Fault Prediction Models Using Change Request Data for a Telecommunication System

  • Park, Young-Sik;Yoon, Byeong-Nam;Lim, Jae-Hak
    • ETRI Journal
    • /
    • v.21 no.3
    • /
    • pp.6-15
    • /
    • 1999
  • Many studies in the software reliability have attempted to develop a model for predicting the faults of a software module because the application of good prediction models provides the optimal resource allocation during the development period. In this paper, we consider the change request data collected from the field test of the software module that incorporate a functional relation between the faults and some software metrics. To this end, we discuss the general aspect if regression method, the problem of multicollinearity and the measures of model evaluation. We consider four possible regression models including two stepwise regression models and two nonlinear models. Four developed models are evaluated with respect to the predictive quality.

  • PDF

A study on the parameter estimation of S-Shaped Software Reliability Growth Models Using SAS JMP (SAS JMP를 이용한 S형 소프트웨어 신뢰도 성장모델에서의 모수 추정에 관한 연구)

  • 문숙경
    • Journal of Korean Society for Quality Management
    • /
    • v.26 no.3
    • /
    • pp.130-140
    • /
    • 1998
  • Studies present a guide to parameter estimation of software reliability models using SAS JMP. In this paper, we consider only software reliability growth model(SRGM), where mean value function has a S-shaped growth curve, such as Yamada et al. model, and ohba inflection model. Besides these stochastic SRGM, deterministic SRGM's, by fitting Logistic and Gompertz growth curve, have been widely used to estimate the error content of software systems. Introductions or guide lines of JMP are concerned. Estimation of parameters of Yamada et al. model and Logistic model is accomplished by using JMP. The differences between Yamada et al. model and Logistic model is accomplished by using JMP. The differences between Yamada et al. model and Logistic model is discussed, along with the variability in the estimates or error sum of squares. This paper have shown that JMP can be an effective tool I these research.

  • PDF

A Study on 5th Graders' Interaction in Exploration Using Dynamic Geometry Software (탐구형 기하 소프트웨어를 활용한 탐구 활동에 따른 초등학교 5학년 학생들의 상호작용 분석)

  • 류희찬;하경미
    • Journal of Educational Research in Mathematics
    • /
    • v.10 no.2
    • /
    • pp.279-300
    • /
    • 2000
  • This research investigated students' interaction in the environment with dynamic geometry software such as Cabri II, and GSP in order to understand and analyze why computer environment is a richer interaction field for developing children's explorative ability than other traditional paper-and-pencil environments. This research focused on 5th graders' interaction with topics of transformational geometry and similar figure and analyzed children's learning process and their interview results gotten through audio and video recording. Computer exploration with a dynamic software seems to be very helpful for elementary students to learn geometry. However, the effectiveness of the computer should be discussed with respected to its methodological validity of teachers to guide students' explorative activities with a dynamic software.

  • PDF

An Empirical Study on the Use of CASE Tools for Efficient Software Development (효율적 S/W 개발을 위한 CASE 도구 활용의 실증적 연구)

  • Jeon, Eung-Seop;Nam, Sang-Jo
    • Asia pacific journal of information systems
    • /
    • v.3 no.1
    • /
    • pp.31-53
    • /
    • 1993
  • Computer Aided Software Engineering(CASE) tools are suggested as an automated method for the efficient development of softwares. This study are intended to measure the use level of CASE tools and to provide the meaningful information on the whole software development environment supported by CASE tools. Therefore, the results of a survey on CASE environment in Korea are empirically reported and analyzed. The use of CASE tools is measured; purposes purchasing CASE tools and achievement levels are investigated. Implications from the comparative analysis of the utilization of software engineering methodologies between the CASE user group and the non-user group are described. A proposition is suggested to check the request frequency for program change. Further studies on the reverse engineering, program reuse and the use of CASE tools under distributed processing systems such as client-server environments are suggested.

  • PDF

Internet content transcoding framework for heterogeneous client devices

  • Kim, Jae-Hong;Jang, Min-Su;Sohn, Joo-Chan;Baik, Jong-Myeong;Lee, Sang-Jo
    • Proceedings of the CALSEC Conference
    • /
    • 2001.08a
    • /
    • pp.379-391
    • /
    • 2001
  • In this paper, we presented function catalogs that Internet content transcoding system for heterogeneous client devices must offer, and, we proposed content transcoding framework architecture that is good in extensibility. This transcoding framework can accommodate each transcoder in efficient way using device capability and user preference information based on W3C's CC/PP and Wap forum's UAProf specification. This architecture offers advantages that can add developed transcoder dynamically in Plug-In form later.

  • PDF

A qualitative study in applying mathematical software for mathematics education (수학교육용 소프트웨어의 활용에 대한 질적 연구)

  • 전영국
    • School Mathematics
    • /
    • v.1 no.2
    • /
    • pp.433-449
    • /
    • 1999
  • This paper introduces a branch of qualitative method, called an in-depth interview method. By collecting data from the stories of Korean middle school students and a 9th grade American girl who used Geometer's Sketchpad and various software respectively for their mathematical problem solving, the qualitative analysis leads us to understand how such software affect their lives with mathematics subject. The unique characteristics and strands of each student's utterances reflect how software plays a role of learning aid for their mathematics learning. The arm of this study is both to get a good picture of each student's self-perceived relationship to mathematics as well as to explore external and objective parameters and factors in each student's internal situations. The qualitative descriptions of the collected data help us guide the students to the points where they could develop their interests and satisfaction with subject matter better. In this way, teachers may have more realistic understandings of how students become interested and motivated by mathematics, so that they are better able to find out ways of grasping the totalities of how the use of technology is interwoven into the school curricular.

  • PDF

Software Analysis and Design of the Image Acquisition Subsystem Using the Unified Modeling Language

  • Yom, Jae-Hong
    • Korean Journal of Geomatics
    • /
    • v.1 no.1
    • /
    • pp.85-93
    • /
    • 2001
  • Geospatial database, which is the basis for Geo-Spatial Information Systems, is produced by conventional mapping methods. Recently, with increased demand for digital forms of the geospatial database, studies are carried out to automate its production. The automated mapping system is composed of the image acquisition subsystem, positioning subsystem, point referencing subsystem and the visualization subsystem. The image acquisition subsystem is the most important part of the overall production line because it is the starting point and will affect all subsequent processes. This paper presents a software analysis and design of the image acquisition subsystem. The design was carried out using the Unified Modeling Language which is a modeling method used extensively in the software engineering field.

  • PDF

Drone Hand Gesture Control System for DJI Mavic Air (DJI 매빅에이어를 위한 드론 손 제스처 제어 시스템)

  • Hamzah, Mohd Haziq bin;Jung, Jinwoong;Lee, Joohyun;Choo, Hyunseung
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2018.10a
    • /
    • pp.333-334
    • /
    • 2018
  • This is a study on controlling a drone (DJI Mavic Air) with simple hand gesture using Leap Motion controller. Four component involve are MacBook, Leap Motion controller, Android device, and DJI Mavic Air. All of this component are connected through USB, Bluetooth, and Wi-Fi technology. The studies main purpose are to show that by controlling a drone through Leap Motion, drone amateur user can easily learn how to control a drone, and because of longer drone control range can be archived things such as search and rescue mission will be possible.