• Title/Summary/Keyword: Maturity Levels

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Development of a defect analysis and control system based on CMMI (CMMI 기반의 결함 분석 및 통제 시스템 개발)

  • Cho, Sung-Min;Han, Hyuk-Soo
    • Journal of Internet Computing and Services
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    • v.8 no.2
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    • pp.15-22
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    • 2007
  • As we detect defects and eliminate them in early stages, we can make better quality software. For doing this task, we need to use a defect tracking system which con effectively track and manage defects that give severe effects on software quality. Those existing defect tracking systems have some weaknesses as we apply them to organizations that use CMMI for process improvements. Major problems of those systems are that they require the organizations to collect many types of defect data at a time without providing the proper explanation and even without the support of defect management process. The organizations at CMMI maturity level 2 and 3 have problems for analyzing those defects because there is no specific process area at CMMI maturity level 2 and 3 which directly handles defect managing activites. This paper resolves those problems by developing a defect tracking system which offers methods of managing defects. And the system provides guidelines of which defects should be gathered for each CMMI mathurity levels. The system also has functions to generate various status and statistic information on defects, and to assign defect data to the person in charge so that he or she track the defect to the closure

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Study on Wine Quality of Domestic Grape Cultivar 'Cheonghyang' classified by Ripening Stage (국내 육성 품종 '청향' 포도의 숙도별 양조 적성 연구)

  • Lee, Hyo-Young;Jeon, Jin-A;Park, Young-Sik;Yi, Jae-Hyoung;Kwon, Hye-Jeong;Jeong, Seok-Tae
    • Journal of the East Asian Society of Dietary Life
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    • v.26 no.5
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    • pp.445-449
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    • 2016
  • In this study, Red pearl (4x) and MBA (2x) were crossed Gangwon-do Agricultural Research and Extension Services in 2000 to compare the brewing characteristics of Cheonghyang, a seedless kind of grape registered in 2009, by maturity. Fruit characteristics of Cheonghyang were examined after the first racking and 300 days after fermentation during aging in manufacturing wine based on maturity categories of being immature, mature, and overmature after harvest between August 25 and 27, 2014. The soluble solid matter content did not differ between the first racking following manufacturing wine and during ripening, and the alcohol content following the first racking was 12.9% for immature ones, 13.0% for mature ones, and 12.7% for overmature ones., The alcohol content decreased by appropriately 1.3% to 1.8% during ripening. The total acidity content was 0.9% for immature ones, 0.8% for mature ones, and 0.5% for overmature ones following the first racking and showed insignificant variations during ripening of 0.8%, 0.7%, and 0.5%, respectively, with wine made from mature ones showing proper acidity. The volatile acid content following the first racking during ripening, showing insignificant variation by maturity; however, it decreased after ripening. The sensory evaluation detected differences in acidity of wine between mature and overmature grapes. There was no difference in sour taste between immature and mature grapes; however, overmature ones had low levels of sour taste. Our results showed that mature wine had the best overall preference.

The Quality Performance Management of CMMI in the Era of Industry 4.0 (4차 산업혁명 시대의 CMMI 품질성과관리 연구)

  • Cho, Kyoung-Shik;Shin, Wan Seon
    • Journal of Korean Society for Quality Management
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    • v.47 no.1
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    • pp.17-32
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    • 2019
  • Purpose: CMMI is a process model used to assess or improve an organization's software development capabilities. This paper deals with the quality indicators when using CMMI and their priorities for possible improvement. Methods: The 22 process areas and 167 practices of CMMI are matched with 60 indicators of Quality Scorecard(QSC) first to analyze the balance of CMMI in terms of prevention, appraisal, and final result categories and second to isolate a set of key areas for quality focused performance measures. Results: A total of 86.2% (144 out of 167) CMMI practices were mapped to QSC. According to the CMMI level of maturity, level 2 and 3 accounted for more than 75% of the total. The practices at the maturity level of 4 and 5 were mapped to more than 52% of the final result's measurements. It has been observed that CMMI practices need further elaboration at higher levels to consider prevention, appraisal, and final results simultaneously. Conclusion: In order to improve the quality performance of the organization by applying CMMI, the final result measures should be refined in metrics, cycles, and methods, and then corrective actions could be conducted to improve the performance of CMMI practices. This strategy would help the practitioners benefit from CMMI in fostering the overall quality level of key activities for the organization's business goals.

Effects of Different Ripening Stage and Varieties on Quality Characteristics and Antioxidant Activity of Aronia (Aronia Melaocarpa) (품종 및 숙도 단계에 따른 아로니아의 이화학적 품질 및 항산화 활성 연구)

  • Park, Ji Hyun;Kim, Kyung Mi;Cho, Yong Sik;Kim, Ha Yun
    • Food Engineering Progress
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    • v.22 no.4
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    • pp.374-380
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    • 2018
  • Aronia has low preference because of astringent and bitter taste. Appropriate processing is essential for eating aronia. For the processing of aronia, the aim of this study is to provide basic information on the cultivar and ripening stages. Three varieties (Viking, Nero and McKenzie) were studied. We divided the stages of maturity into four levels based on color. The physicochemical properties were analyzed. In the case of hardness, the first stage of maturity was the highest, and there was no difference between varieties. As maturation progressed, brightness and yellowness gradually decreased, and redness was highest at the second stage. The sugar content was the lowest in the Viking and significantly increased with the maturity stage. The acidity was highest in the Viking. Nero showed the highest radical scavenging ability. Total polyphenols and flavonoids were the highest in Nero. The highest level was shown at the first stage by the ripening stage.

Evaluation Model Platform based on Mature to improve IS audit quality (IS 감리 품질 향상을 위한 성숙도 기반의 평가 모델 플랫폼)

  • Jong-Seok Lee;Young-Gon Kim
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.23 no.6
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    • pp.9-14
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    • 2023
  • The purpose of information system audit is to proactively identify and efficiently manage all risk factors that may arise during the process of constructing an information system, in order to assist in achieving the objectives of information system development. However, there is currently significant dissatisfaction with the quality and effectiveness of the auditing process, leading to ongoing research aimed at finding effective solutions. In this paper, we propose a multi-level evaluation model to enhance mutual understanding between auditors and evaluators and present a model that undergoes a maturity process, improving its levels and stages. We introduce a maturity-based evaluation model platform, enabling efficient communication between auditors and evaluators, allowing for real-time feedback, and supplementing it through continuous search. By presenting this multi-level model aimed at maturing the entire system, we aim to efficiently manage the system development process.

Clinical and laboratory factors associated with the presence of dysmorphic oocytes in intracytoplasmic sperm injection cycles

  • Tae Eun Kim;Hyun Kyung Lee;Byung Chul Jee
    • Clinical and Experimental Reproductive Medicine
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    • v.50 no.4
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    • pp.270-276
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    • 2023
  • Objective: This study investigated the clinical and laboratory factors associated with the presence of dysmorphic oocytes in intracytoplasmic sperm injection (ICSI) cycles. Methods: The study involved 200 ICSI cycles, performed from 2020 to 2021, that yielded at least one mature oocyte. Clinical characteristics and ovarian stimulation methods were compared between 68 cycles with at least one dysmorphic oocyte (the dysmorphic group) and 132 cycles with normal-form oocytes only (the non-dysmorphic group). Dysmorphic oocytes were characterized by dark cytoplasm, cytoplasmic granularity, cytoplasmic vacuoles, refractile bodies in the cytoplasm, smooth endoplasmic reticulum in the cytoplasm, an oval shape, an abnormal zona pellucida, a large perivitelline space, debris in the perivitelline space, or an abnormal polar body. Results: The ages of the women, indications for in vitro fertilization, serum anti-Müllerian hormone levels, and rates of current ovarian endometrioma were similar between the dysmorphic and non-dysmorphic groups. In both groups, the three ovarian stimulation regimens, two types of pituitary suppression, and total gonadotropin dose were employed similarly. However, the dual-trigger method was used more frequently in the dysmorphic group (67.6% vs. 50%, p=0.024). The dysmorphic group contained significantly more immature oocytes and exhibited significantly lower oocyte maturity (50% vs. 66.7%, p=0.001) than the non-dysmorphic cycles. Within the dysmorphic group, significantly lower oocyte maturity was found in the cycles using a dual-trigger, but not in those with a human chorionic gonadotropin trigger. Conclusion: ICSI cycles with dysmorphic oocytes are closely associated with reduced oocyte maturity. This association was observed exclusively in dual-trigger cycles.

Salinity Tolerance of Blackgram and Mungbean: I. Dry Matter Accumulation in Different Plant Parts

  • Karim, M.A.;Raptan, P.K.;Hamid, A.;Khaliq, Q.A.;Solaiman, A.R.M.;Ahmed, J.U.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.46 no.5
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    • pp.380-386
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    • 2001
  • Dry matter(DM) accumulation in different plant parts of two Vigna spp., blackgram(Vigna mungo) and mungbean(Vigna radiata), was compared at different levels of salinity. Two vaarieties of each of blackgram (Barimash-1 and Barimash-2) and mungbean(Barimung-3 and Barimung-4) were grown with 50, 75 and 100mM NaCl solutions and tap water as a control till maturity. The DM accumulation in all plant parts of the two crops devreased with the increasing salinity levels. The reducation was severe in mungbean compared to blackgram. On an average mungbean produced only 3% grain yield compared to 37% in blackgram at 100mM NaCl. The salinity induced growth reduction was relatively less in Barimash-2 than that in Barimash-1. In mungbean, the relative DM production of Barimung-3 was greater than Barimung-4. The extent of biomass reducation due to salinity in different plant parts was not similar. At maturity the rank of biomass accumulation (at 100 mM NaCl) in different plant parts of blackgram was in decreasing order by seeds pod$^{-1}$ (97%), branch plant$^{-1}$ (88%), 1000-grain weight (79%), plant height(72%), pods plant$^{-1}$ (50%), leaf weight and root mass(both 49%) and stem weight (48%). In mungbean, the rank was in decreasing order by 1000-grain weight (57%), leaf weight (54%), plant height (52%), seeds pod$^{-1}$ (50%), branch plant$^{-1}$ (41%), root weight (34%), stem weight (24%) and pods plant$^{-1}$ (6%). Therefore, salinity reduced grain yield more than straw and roots of the Vignaq spp., and blackgram is relatively more salt-tolerant than mungbean.

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Improving Certification System by Analyzing Audit Result of the Defense Quality Management System (국방품질경영시스템 인증 심사결과 분석을 통한 인증제도 개선 방안)

  • Kim, Younghyun;Lee, Jongchan;Choi, Jaeho;Byun, Jai-Hyun
    • Journal of Korean Society for Quality Management
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    • v.46 no.3
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    • pp.465-482
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    • 2018
  • Purpose: This article aims 1) to propose improvement directions of the certification by recognizing the quality management practices based on the analysis of the audit results of the military contractors and 2) to suggest some ideas on quality audit planning preparation to help the government quality assurance representatives. Methods: Based on the nonconformity report of the defense quality management system (DQMS) requirements, frequently occurring requirement components are found and summarized. Three hypothesis testings are executed to check whether the maturity levels of the quality management systems are influenced by the company size, weapon tye, and company type, regarding the nonconformity frequency as dependent variable. Results: Nonconformity occurs most frequently in the order of product realization, measurement analysis and improvement, management responsibility, resource management, and quality management system. Nonconformity reduces when the company size increases, for the guided weapons, and in the defense companies. Conclusion: Since small-sized companies are inferior to larger companies with respect to the DQMS maturity level, more support should be provided to these small-sized companies which produce military supplies.

Design of maturity model for software project management level evaluation (소프트웨어 프로젝트의 관리 수준 평가를 위한성숙도 모형 설계)

  • Jeon, Soon-Cheon
    • Journal of Advanced Navigation Technology
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    • v.15 no.4
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    • pp.609-615
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    • 2011
  • In recent public institutions and banks to improve competitiveness in the integration of information systems projects are larger in size and may be the project's ever-growing need appropriate software project management plan. However, between the effect of the project management area for systematic research was scarce. Through this study, previous research in the important area of project management is developed, and "scope, schedule, quality, human resources, risk" of each area of impact analysis and the interaction between the progress of each area, the planning, execution, completion Performance levels were analyzed separately. Affected and Performance Analysis of the results to assess the level of the project management model is presented.

소프트웨어 프로세스 개선의 성공요인이 조직성과에 미치는 영향: 조직성숙도의 매개효과의 관점에서

  • Kim, In-Jae;Seol, Gyeong-Hwan
    • 한국경영정보학회:학술대회논문집
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    • 2008.06a
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    • pp.995-1000
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    • 2008
  • Software Process Improvement(SPI) becomes an important issue at software quality. A research model is suggested on the basis of previous literature. The model includes success factors for SPI as independent variables and CMM levels as mediating variables, and defines organizational performance as dependent variables. This study basically investigates causational relationships among SPI success factors, CMM levels, and organizational performance through a structured equation model. A LISREL v8.72 for windows is used for statistical analysis. Even through success factors for SPI partially influences the CMM level, the CMM level is fully related to the level of organizational performance. The results show that the success factor for SPI in Korean companies are not equal to the factors abroad, but indicate that the CMM level is closely related to the organizational performance. These results will be helpful to academicians as well as to practitioners.

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