Browsing by Author "Yilma, Daniel"

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    Expert System Development for Teff Variety Selection and Disorder Management
    (Addis Ababa University, 2011-02-02) Yilma, Daniel; Midekso, Dida (PhD)
    This paper presents a web-based expert system for Teff crop in Ethiopia. Teff is one of the major cereal crops in Ethiopia. It is cultivated in vast areas and ranked first with regard to its area of coverage compared to other cereal crops of the country. In Ethiopia, farmers obtain information about new agricultural technologies from agricultural extension workers who occupy a strategic position in the agricultural production cycle. They mediate between the farmers and researchers. The extension workers obtain information about Teff improved technologies when extension documents are distributed. This way of information transfer has its own limitation. The information is static, not easily available and may not respond to users‟ specific needs since the documents give general recommendation. During this situation the extension workers look for agricultural experts‟ assistance. But experts are not always available. This project is an effort in solving the problems faced by the extension workers when the services of the experts are not available. In this project a web based expert system has been developed. The system would help users to easily select appropriate Teff varieties which reflects their agro ecological zone and their interest, and also provides proper consultation in relation to identifying the causes of the crop disorder and recommending possible measures to be taken. The system has been evaluated by domain experts and extension workers. The analysis of the result shows that the system is acceptable.
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    Expert System Development for Teff Variety Selection and Disorder Management
    (Addis Ababa University, 2/2/2011) Yilma, Daniel; Midekso, Dida (PhD)
    This paper presents a web-based expert system for Teff crop in Ethiopia. Teff is one of the major cereal crops in Ethiopia. It is cultivated in vast areas and ranked first with regard to its area of coverage compared to other cereal crops of the country. In Ethiopia, farmers obtain information about new agricultural technologies from agricultural extension workers who occupy a strategic position in the agricultural production cycle. They mediate between the farmers and researchers. The extension workers obtain information about Teff improved technologies when extension documents are distributed. This way of information transfer has its own limitation. The information is static, not easily available and may not respond to users‟ specific needs since the documents give general recommendation. During this situation the extension workers look for agricultural experts‟ assistance. But experts are not always available. This project is an effort in solving the problems faced by the extension workers when the services of the experts are not available. In this project a web based expert system has been developed. The system would help users to easily select appropriate Teff varieties which reflects their agro ecological zone and their interest, and also provides proper consultation in relation to identifying the causes of the crop disorder and recommending possible measures to be taken. The system has been evaluated by domain experts and extension workers. The analysis of the result shows that the system is acceptable.
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    Factors Affecting Consumers’ Purchase Decision of locally Assembled Automobiles in Addis Ababa: The Case of Lifan Motors Automobile
    (Addis Ababa University, 2018-06-17) Yilma, Daniel; Mesfin, Tewodros (PhD)
    It is very crucial for every automobile company and all stake holder of the industry to have deeper understanding regarding the factors that influence the purchasing behavior of consumers towards the product they offer. The purpose of this paper is to examine the influence of the factors on customers purchase decision making towards locally assembled Lifan automobiles in Addis Ababa. The study used quantitative research approach and structured questionnaire was employed. The hypotheses were also tested on a sample of 353 customers distributed, giving valid response rate of 94.2% percent. The response of questionnaires was analyzed using CronbachAlpha, descriptive statistics, correlation & multiple regressions. The application used to analyze and examine the hypotheses was the Statistical Package for Social Sciences (SPSS) V.20. The finding showed all independent variables(product attribute, brand image ,after sales service, price factor and external factor have a significant correlation with the dependent variable “consumer purchase decision making” with 95% confidence interval & at 0.05 p-value, by scoring a Pearson Correlation Coefficient “R-value” value of .497**, .562**,.419**,.507**,.561** respectively. In this case relatively brand image had a higher strong relationship with consumer purchase decision than the other four independent variables & the linear combination of (independent variables).The R2 explains 54.1% of the variance in customers’ purchases decision. In addition to correlation analysis, further regression analysis was also conducted and the result indicates that all independent variables have significant relation with consumer purchase decision. Finally, as evident from the finding section recommendations were forwarded to lifan Motors Company to focus on building brand image, improving product attribute, excelling the after sales service, and implementing competitive price to capitalize the market opportunity
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    In Partial Fulfillment of the Requirements of the Degree of Master of Arts in Curriculum and Instruction
    (Addis Ababauniversity, 2014-06) Yilma, Daniel; Weritu, Dessu (PhD)
    The purpose of this study was to explore the application of active learning and continuous assessment in Pentecostal Theological College. To this end, a descriptive survey design method was employed. Both primary and secondary sources of data were used. The primary source included deans, instructors and students of Pentecostal Theological College where as the secondary sources were different literature and policy document, and grade reports of Pentecostal Theological College. A total of 64 respondents participated in this case study. Data collection tools were questionnaires, semi-structured interview guide, focus group discussion, and observation checklist. Based on the data analysis the following major findings were obtained. That study revealed that the majority (83%) instructors of the college had good understanding of active learning and continuous assessment; it was found out that despite of good understanding of the concept of AL and CA, half (50%) of the instructors did not frequently utilize it; instructors provide 2 – 3 tests and one project work for a given course in as semester; instructors equated the provision of a series of test with continuous assessment; large class size, instructors’ tight schedule; lack of commitment; and broad course content and teaching load were the major challenges that encountered the instructors in the implementation of active learning and continue assessment. Based on these findings it was safely concluded that active learning and continuous assessment in Pentecostal Theological College were moderately implemented. Finally, it was recommended that refresher training as part of professional development of the academic staff of the college should be provided for the instructors in the area of active learning and continuous assessment; the top management of the Pentecostal Theological College should regularly evaluate and monitor the implementation of active learning and continuous assessment; The College should consider having small class size so that all instructor would be able to implement AL and CA; and Maximizing student’s involvement It is known quality education and success in education comes from the active involvement of student. Therefore, students must be encouraged to engage cognitively, emotionally, and physically with the content