• Title/Summary/Keyword: functional

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A Software Development Process Supporting Non-Functional Requirements (비기능적 요구사항을 지원하는 소프트웨어 개발 프로세스)

  • Jung, Hyo-Taeg;Joo, Sang-Hyun
    • Journal of The Institute of Information and Telecommunication Facilities Engineering
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    • v.9 no.1
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    • pp.13-18
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    • 2010
  • As the importance of non-functional requirements has increased, many researchers have become interested in the software development process for non-functional requirements including the notation, modeling, and assessment of non-functional requirements. However, the characteristics of non-functional requirements are so sophisticated and there are many topics which have not been solved until now. In order to address one of the unsolved problems, we propose a systematic software development process to support the management of non-functional requirements. The process consists of six steps, each of which is composed of detailed activities. Using the proposed process, the non-functional requirements can be managed and modeled more effectively and systematically than previous ones.

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The Effect of Well-being Lifestyle and Functional Textile Knowledge on the Perception of High Functional Sports/Leisure Wear Importance (웰빙 라이프스타일과 기능성 섬유에 대한 지식이 고기능성 스포츠레저웨어의 중요도 지각에 미치는 영향)

  • Chung, Ihn-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.9
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    • pp.1495-1505
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    • 2009
  • This study analyzes how well-being lifestyle and functional textile knowledge effect the perception of high functional sports/leisure wear importance. A survey was conducted among male and female sports/leisure wear consumers aged 15 and over in the Daegu and Gyeongbuk area from May $12^{th}$ to June $2^{nd}$ 2009. A total of 288 responses were analyzed using descriptive statistics, factor analysis, and regression. As a result, 9 factors were determined as sub-elements of a well-being lifestyle. Knowledge levels for functional textiles were high in elastic, UV blocking, air permeable, and antibacterial properties. The perception of high functional sports/leisure wear importance was positively influenced by functional textile knowledge and two well-being lifestyle constructing factors ('self-confidence/affirmative thinking' and 'health/environment oriented eating habits').

Universal Composability Notion for Functional Encryption Schemes

  • Sadikin, Rifki;Park, YoungHo;Park, KilHoum;Moon, SangJae
    • Journal of Korea Society of Industrial Information Systems
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    • v.18 no.3
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    • pp.17-26
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    • 2013
  • We have developed an ideal functionality for security requirement of functional encryption schemes. The functionality is needed when we want to show the security of a functional encryption scheme in universal composable (UC) framework. A functionality $F_{fe}$ was developed to represent ideal respond of a functional encryption scheme against any polynomial time active attacker. We show that UC security notion of functional encryption scheme $F_{fe}$ is as strong as fully secure functional encryption in an indistinguishable game with chosen cipher text attack. The proof used a method that showing for any environment algorithm, it can not distinguish ideal world where the attacker play with ideal functionality $F_{fe}$ and real world where the attacker play a fully secure functional encryption scheme.

STABILITY OF A JENSEN TYPE FUNCTIONAL EQUATION

  • Lee, Sang Han
    • Journal of the Chungcheong Mathematical Society
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    • v.14 no.1
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    • pp.73-83
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    • 2001
  • In this paper, we solve a Jensen type functional equation and prove the stability of the Jensen type functional equation.

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The Influence of the Functional Thinking Based-Teaching on Algebraic Reasoning and Functional Thinking Level of Sixth Grade Elementary School Students (함수적 사고 기반 수업이 초등학교 6학년 학생들의 대수적 추론 능력 및 함수적 사고 수준에 미치는 영향)

  • Choi, Eunmi;Oh, Youngyoul
    • Journal of Elementary Mathematics Education in Korea
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    • v.20 no.4
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    • pp.655-676
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    • 2016
  • The purpose of this study is to examine the effects of teaching on functional thinking, one of the algebraic thinking in sixth grade students level. For this study, we developed functional thinking based-teaching through analyzing mathematical curriculum and preceding research, which consisted of 12 classes, and we investigated the effects of teaching through quantitative and qualitative analysis. In the results of this study, functional thinking based-teaching was statistically proven to be more effective in improving algebraic reasoning skills and lower elements which is an algebraic reasoning as generalized arithmetic and functional thinking, compared to traditional textbook-centered lessons. In addition, the functional thinking based-teaching gave a positive impact on the functional thinking level. Thus functional thinking based-teaching provides guidance on the implications for teaching and learning methods and study of the functional thinking in the future, because of the significant impact on the mathematics learning in six grade students.

Perception and Educational Demand on Health Functional Foods among School Nutrition Teachers and Dietitians in Chungbuk (충북지역 일부 학교 영양(교)사의 건강기능식품에 대한 인식 및 교육 요구)

  • Hwang, Mi-Sook;Ju, Ji-Hyeung
    • Korean journal of food and cookery science
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    • v.27 no.3
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    • pp.81-93
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    • 2011
  • We investigated perception and educational demand for health functional foods among nutrition teachers and dietitians working in schools. The subjects were 229 nutrition teachers (57.2%) and dietitians (42.7%) working in Chungbuk elementary, middle and high schools. Approximately 67% of the subjects had experience consuming health functional foods. Most of the subjects did not have experience with the side effects after consuming health functional foods. Subjects who were unaware of the legal specifications, classification, and labeling standards for health functional foods (78-91.2%) were much more common than those who were aware of those issues. Most of the subjects perceived health functional foods as a food (45.0%) or as a product between a food and a medicine (44.5%). The subjects recommended themselves (43.1%) or medical doctors/pharmacists (40.8%) as consultation/education specialists for health functional foods. Approximately 66% of the subjects had experience conducting nutritional consultation/education in their schools, but only 3.2% had experience with health functional foods. Only 17.8% of the subjects had experience receiving education on health functional foods. Most subjects (88.2%) demanded education on health functional foods for themselves. The results suggest that an effective education is needed for nutrition teachers and dietitians working in schools for them to play an active role in educating students and their parents about health functional foods in the near future.

Actual Purchasing of Functional Beverages for Adults in Chungnam Area (충남 일부지역 성인의 기능성 음료 구매실태)

  • Choi, Seon-A;Lee, Je-Hyuk
    • The Korean Journal of Food And Nutrition
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    • v.31 no.4
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    • pp.520-531
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    • 2018
  • Aim of this study is to investigate the perception and purchasing status of functional beverages for adults in the Chungnam area. In this case, the reasons to buy the functional beverages for men were 'recovery of fatigue (43.1%)', 'quenching thirst (21.6%)', 'health promotion (19.6%)', 'supply of nutrition (15%)', and 'a loss in weight (7%)'. Otherwise the reasons to buy the functional beverage for women showed to be 'recovery of fatigue (28.6%)', 'health promotion (26.4%)', 'quenching thirst (22.1%)', 'supply of nutrition (12.9%)', and 'a loss in weight (10%)', which were significant different between the men and women subjects. The place to buy functional beverages was for singles (46.5%) a store and for married person a supermarket. The purchase of functional beverages was affected by as follows; manufactured date > original granule > nutrition sign > country > price > taste > brand > scent > color and the women are affected more than men. For functional beverages, the men preferred to buy an energy drink and vitamin drink more than the women. After the intake of functional beverages, the men and women recognized the effect on 'recovery of fatigue' and 'a loss of weight/release of a feeling of hunger/improvement of constipation', respectively. Considering the results of the study, it is necessary to clarify the function of functional beverages so that consumers can choose and take the correct functional beverage by themselves. In addition, the nutritional education should be conducted for the intake allowance for the compositions and excessive or inadequate intake of functional beverages.

Influencing Factors of Sales Process and Task Education on Sales of Health Functional Food in Door-to-door Saleswomen (건강기능식품 여성 방문판매원의 판매과정, 직무교육 요인이 건강기능식품 매출에 미치는 영향 분석)

  • Nam, Minyoung;Yoon, Sun;Lee, Hae-Young;Chung, Hye-Kyung
    • Journal of the Korean Society of Food Culture
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    • v.29 no.4
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    • pp.326-335
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    • 2014
  • The purpose of this study was to investigate factors influencing sales of health functional foods by door-to-door saleswomen. A total of 450 women who worked as door-to-door salespersons in Seoul were enrolled. The survey questionnaire was composed of five parts as follows: general characteristics, factors related with door-to-door sales process, task education, competency required for door-to-door salespersons, and customer relationship beliefs. The survey was conducted in October 2011. Finally, data on 302 subjects were statistically analyzed using the SPSS 17.0 package program. Reason for sales of health functional foods (p<0.01), time required for sales promotion (p<0.001), difficulties during sales of health functional foods (p<0.05), satisfaction of task education (p<0.01), and failure of salesperson's memory as problems of task education (p<0.01) were significantly associated with sales of health functional foods. However, means of sales promotion, frequency and time of task education, and competency required for door-to-door salespersons were not significantly related with sales of health functional foods. Customer relationship beliefs did not show significant association with sales of health functional foods either. In conclusion, certain factors were associated with sales of health functional foods by door-to-door saleswomen. These results provide an understanding for sales of door-to-door health functional foods and provide basic information for preparation of task education for health functional food saleswomen and marketing.