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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Requirement Engineering : A comparision between Traditional requirement elicitation techniqes with user story

Hussain, Dostdar, Ismail, Muhammad January 2011 (has links)
Requirements are features or attributes which we discover at the initial stage of building a product. Requirements describe the system functionality that satisfies customer needs. An incomplete and inconsistent requirement of the project leads to exceeding cost or devastating the project. So there should be a process for obtaining sufficient, accurate and refining requirements such a process is known as requirement elicitation. Software requirement elicitation process is regarded as one of the most important parts of software development. During this stage it is decided precisely what should be built. There are many requirements elicitation techniques however selecting the appropriate technique according to the nature of the project is important for the successful development of the project. Traditional software development and agile approaches to requirements elicitation are suitable in their own context. With agile approaches a high-level, low formal form of requirement specification is produced and the team is fully prepared to respond unavoidable changes in these requirements. On the other hand in traditional approach project could be done more satisfactory with a plan driven well documented specification. Agile processes introduced their most broadly applicable technique with user stories to express the requirements of the project. A user story is a simple and short written description of desired functionality from the perspective of user or owner. User stories play an effective role on all time constrained projects and a good way to introducing a bit of agility to the projects. Personas can be used to fill the gap of user stories.
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42

Utilization of the Wisconsin card sorting test in the diagnostic discrimination of Attention-Deficit/Hyperactivity Disorder and learning disorders in children

Lunn, Douglas James January 2001 (has links)
The purpose of this investigation was two-fold. First, to examine the level of diagnostic accuracy of psychologists when their decisions were subjected to statistical procedures that analyzed group differences and group membership predictions. Second, to examine the sensitivity of the Wisconsin Card Sorting Test (WCST; Heaton, Chelune, Talley, Kay, & Curtiss, 1993) in differentially identifying children who experience ADHD and RD-LD symptoms. The diagnostic battery used to identify ADHD, RD-LD, and Normal subjects included intellectual, academic achievement, attention, and hyperactivity measures recognized as sensitive to these disorders. Performance on the WCST was then examined to determine its usefulness in discriminating between the aforementioned groups.Scores for the diagnostic variables for 115 subjects (mean age = 9.8 years; males = 80; females = 35) were analyzed using oneway ANOVAs to determine differences between groups. A subsequent cluster analysis was conducted using Ward's method to determine group membership of the subjects and resulted in a sample of 87. This cluster analysis resulted in a four cluster solution with the groups being identified as ADHD, RD-LD, Normal, and "Close Calls."Two linear discriminant analyses were performed with the first using the diagnostic groups diagnosed by the previous psychologists as groups and diagnostic variables as predictors. The second used the diagnostic groups diagnosed by evaluating psychologists and the WCST variables used as predictors to examine their ability to discriminate between groups and predict membership.The first linear discriminant analysis yielded two significant functions of three indicating confidence in the diagnoses provided by the evaluating psychologists. The second linear discriminant analysis yielded no significant findings when using the WCST variables as predictors. As a result, it appears the WCST provides little useful information in the differentiation between ADHD, RD-LD, and normals. / Department of Educational Psychology
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43

The identification of criteria for the optimal use of Facebook pages for marketing purposes in South Africa : an exploratory study

Barnard, Sune Mari 04 1900 (has links)
The development of non-traditional communication channels in recent years has progressively created a world more digital, networked and interlaced by a myriad of communication tools than ever before. With Facebook being the most prevalent social network, this study aims to guide local organisations to use Facebook optimally to communicate with their customers. The study strives to incorporate the latest ideas about social media marketing in the relevant literature with the opinions of local social media marketing experts. The generally ineffective use of Facebook as a communication channel by small, inexperienced organisations is seen as a justification for identifying a set of criteria to guide organisations in using Facebook pages as a driver of communication. The empirical phase of the research produced a list of seven guidelines on the optimal use of Facebook pages for marketing purposes, which might assist South African companies in developing their marketing strategies. / Business Management / M. Com. (Business Management)
44

Krankheitseinsicht, dynamisch getestete Exekutivfunktionen und defensive Bewältigung bei Schizophrenie / Insight into illness, dynamically assessed executive functions and defensive coping style in people with diagnoses of schizophrenia

Waldorf, Manuel 13 December 2010 (has links)
Objective: Lack of insight into illness is common in patients with schizophrenia diagnoses. It is supposed to reflect deficits of executive functioning that are frequently assessed with the Wisconsin Card Sorting Test. Studies on the remediability of WCST deficits in schizophrenia, however, raise doubts about its construct validity and suggest the use of a dynamic pretest-training-posttest paradigm (WCSTdyn) and single-case analysis (Reliable Change Index, RCI) in studies on insight. Moreover, a multifactorial etiology with neurocognitive and motivational factors, as suggested by Startup's (1996) model, has to be taken into consideration. The model hypothesizes a quadratic function of the relationship between insight and cognition, which means that both cognitively impaired and cognitively intact patients with low insight are to be expected. Method: Three interrelated studies on WCSTdyn and insight were conducted. In study 1, the split-half reliability of the WCST-128 was investigated in a non-psychiatric sample (N = 110). Study 2 compared different RCI single-case tests of significance of intraindividual change on data from N = 400 patients with schizophrenia diagnoses. Furthermore, a typology with three homogenous subgroups was developed and first steps toward an external validation were taken. In study 3, the three types of test-takers were compared on two measures of insight (Item G12 of the Positive and Negative Syndrome Scale [PANSS]; Osnabrueck Scale of Therapeutic Attitudes and Identification of Psychological Problems in Schizophrenia [OSSTI]). The model by STARTUP (1996) was tested by means of regression and cluster analyses including scales on coping (Freiburg Questionnaire of Coping with Illness, FKV: MUTHNY, 1989) and defensiveness (Eppendorf Schizophrenia Inventory, ESI-FR: MAß, 2001; N = 85). Results: The WCST-64 was sufficiently stable (r_tt = .70 [Total Number Correct]). Concordances of different RCI methods were high (kappa = .72 - .90). 45 % of the sample consisted of high scorers, in 43 % a low initial score could be normalized by a short training intervention (learners), and in only 12 % of the sample the WCST deficits were not amenable to training (nonlearners). Insight of nonlearners was significantly reduced (G12: g = 0,45). Finally, three clusters were identified with configurations of insight and WCSTdyn scores consistent with the prediction by STARTUP (1996). Patients with intact neurocognition but low insight responded in a significantly more defensive manner (g = 0,38). They did not differ in self-rated coping, however. A quadratic relationship could not be confirmed. Conclusion: The RCI-based performance typology developed in studies 1 and 2 is a universally applicable analytic tool for future studies on insight-limiting neurocognitive deficits with the WCSTdyn. Results from study 3 point in the direction of a multifactorial etiology of lack of insight in schizophrenia with differential contributions of neurocognitive deficits (e.g., interference control) and defensiveness.
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45

Using multi-modal bio-digital technologies to support the assessment of cognitive abilities of children with physical and neurological impairments

Gan, Hock Chye January 2015 (has links)
Current studies done using a learning test for children have problems as they only make evaluations of Physically and Neurologically Impaired (PNI) children who can succeed in the test and can be considered as a PASS/FAIL test. This pilot study takes a holistic view of cognitive testing of PNI children using a user-test-device triad model and provides a framework using non-PNI children and adults as controls. Comparisons using adapted off-the-shelf novel interfaces to the computer, in particular, an Electroencephalograph (EEG) head-set, an eye-tracker and a head-tracker and a common mouse were carried out. In addition, two novel multi-modal technologies were developed based on the use of brain-waves and eye-tracking as well as head-tracking technologies to support the study. The devices were used on three tests with increasing cognitive complexity. A self-developed measure based on success streaks (consecutive outcomes) was introduced to improve evaluations of PNI children. A theoretical model regarding a fit of ability to devices was initially setup and finally modified to fit the view of the empirical model that emerged from the outcomes of the study. Results suggest that while multi-modal technologies can address weaknesses of the individual component modes, a compromise is made between the user’s ability for multi-tasking between the modes and the benefits of a multi-modal device but the sample size is very small. Results also show children failing a test with a mouse but passing it subsequently when direct communication is used suggesting that a device can affect a test for children who are of a developing age. This study provides a framework for a more meaningful conversation between educational psychologists as well as other professionals and PNI parents because it provides more discrimination of outcomes in cognitive tests for PNI children. The framework provides a vehicle that addresses scientifically the concerns of parents and schools.
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46

La relation entre la stratégie de navigation spontanée et la prise de décision et les fonctions exécutives

Aumont, Étienne 12 1900 (has links)
No description available.
47

Ergonomische Produktgestaltung am Beispiel mobiler Geräte im interkulturellen Vergleich: China – Deutschland – USA

Leiber, Paul 26 November 2010 (has links) (PDF)
Nicht zuletzt durch die Globalisierung kommen mittlerweile viele Geräte in vielen unterschiedlichen Kulturen zugleich zum Einsatz. Durch die Anpassung von Produkten an kulturelle Unterschiede kann die Gebrauchstauglichkeit dieser Produkte in der jeweiligen Kultur verbessert werden. Dies führt aufgrund einer höheren Kundenzufriedenheit und Sicherheit bei der Bedienung zu Vorteilen für die Nutzer der Produkte, in Folge dann auch zu höheren Umsätzen für die Hersteller der Produkte. Die vorliegende Arbeit zeigt am Beispiel der Nutzung mobiler Geräte Erkenntnisse für die Anpassung von Mensch-Maschine-Schnittstellen an die Anforderungen von Nutzern in China, Deutschland und den USA auf. Sie verwendet eine Kombination von quantitativen und qualitativen Forschungsmethoden. Zunächst wird ein Überblick über den theoretischen Wissensstand in den relevanten Bereichen erarbeitet, bevor Interviews mit neun deutschen Experten der Produktentwicklung mit internationaler Erfahrung einen Überblick über die Praxis der Produktentwicklung in international tätigen Konzernen geben. Auf der Basis dieser theoretischen und praktischen Erkenntnisse wird eine Online-Befragung zurNutzung mobiler Geräte im Fahrzeug mit insgesamt 269 chinesischen, deutschen und US-amerikanischen Teilnehmern beschrieben. Eine Card-Sorting-Studie mit 46 internationalen Probanden sowie eine Fahrsimulatorstudie mit 33 deutschen Probanden untersucht anschließend spezifische kulturelle Unterschiede bei der Kategorisierung. Eine weitere Fahrsimulatorstudie mit 42 chinesischen und deutschen Probanden analysiert kulturelle Präferenzen für Eingabemöglichkeiten. Die im Rahmen dieser Arbeit zusammengestellten Erkenntnisse münden in konkreten Gestaltungsregeln. Aus den Erkenntnissen ergeben sich neue Fragestellungen für die zukünftige Forschung.
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48

Ergonomische Produktgestaltung am Beispiel mobiler Geräte im interkulturellen Vergleich: China – Deutschland – USA

Leiber, Paul 01 November 2010 (has links)
Nicht zuletzt durch die Globalisierung kommen mittlerweile viele Geräte in vielen unterschiedlichen Kulturen zugleich zum Einsatz. Durch die Anpassung von Produkten an kulturelle Unterschiede kann die Gebrauchstauglichkeit dieser Produkte in der jeweiligen Kultur verbessert werden. Dies führt aufgrund einer höheren Kundenzufriedenheit und Sicherheit bei der Bedienung zu Vorteilen für die Nutzer der Produkte, in Folge dann auch zu höheren Umsätzen für die Hersteller der Produkte. Die vorliegende Arbeit zeigt am Beispiel der Nutzung mobiler Geräte Erkenntnisse für die Anpassung von Mensch-Maschine-Schnittstellen an die Anforderungen von Nutzern in China, Deutschland und den USA auf. Sie verwendet eine Kombination von quantitativen und qualitativen Forschungsmethoden. Zunächst wird ein Überblick über den theoretischen Wissensstand in den relevanten Bereichen erarbeitet, bevor Interviews mit neun deutschen Experten der Produktentwicklung mit internationaler Erfahrung einen Überblick über die Praxis der Produktentwicklung in international tätigen Konzernen geben. Auf der Basis dieser theoretischen und praktischen Erkenntnisse wird eine Online-Befragung zurNutzung mobiler Geräte im Fahrzeug mit insgesamt 269 chinesischen, deutschen und US-amerikanischen Teilnehmern beschrieben. Eine Card-Sorting-Studie mit 46 internationalen Probanden sowie eine Fahrsimulatorstudie mit 33 deutschen Probanden untersucht anschließend spezifische kulturelle Unterschiede bei der Kategorisierung. Eine weitere Fahrsimulatorstudie mit 42 chinesischen und deutschen Probanden analysiert kulturelle Präferenzen für Eingabemöglichkeiten. Die im Rahmen dieser Arbeit zusammengestellten Erkenntnisse münden in konkreten Gestaltungsregeln. Aus den Erkenntnissen ergeben sich neue Fragestellungen für die zukünftige Forschung.:1. Einleitung 2. Stand der Forschung 3. Interviews mit deutschen Experten 4. Online-Befragung unter Chinesen, Deutschen und US-Amerikanern 5. Card-Sorting-Studie mit westlichen und östlichen Probanden 6. Fahrsimulatorstudie zu Menüstrukturen mit Deutschen 7. Fahrsimulatorstudie zu Eingabemöglichkeiten mit Chinesen und Deutschen 8. Zusammenfassung und Ausblick 9. Gestaltungsregeln für interkulturell genutzte Produkte
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49

Using information to provide safe care for neonatal care unit patients : Medical staff interprets their use of information and communication technologies / Informationsanvändning för att tillhandahålla säker vård för patienter vid neonatalavdelning : Medicinsk personal tolkar sin användning av informations- och kommunikationsteknik

Stjerndorff Gröhn, Pia January 2020 (has links)
2017 became the beginning of the Childbirth Crisis of Sweden, as a result of underbudgeting and understaffing, creating an environment where patient safety and availability was questioned. Additionally, information and communication technology rapidly take a larger role in the field of healthcare, nourishing new solutions for old processes. This explorative research was conducted to answer how information and communication technologies, and communication techniques, are used and could be used to provide safe care for patients. This study was conducted with 10 participants working as medical staff at a Swedish neonatal care unit. The medical staff who participated consisted of registered nurses, certified pediatric nurses, pediatric nursing assistants, and one nursing assistant. The approach of this research was through system thinking in the tradition of soft systems thinking. The data collection was performed with a combination of semi-structured interviews and card sorting. The collected data were processed, organized, and interpreted with the three c’s of analysis and thematic analysis. The results of this study are complemented by rich pictures. The empirical findings of this study describe a neonatal care unit known at its hospital to be the one unit holding the largest number of different devices. The medical staff at the researched NCU are using information and communication technology in a combination together with specific communication techniques, to create an understanding of their patients’ conditions. The study connects a state of safe care to the training and knowledge of the information and communication technologies, and communication techniques used at the neonatal care unit. The combination of the information and communication technologies, and communication techniques used at the NCU are vital tools, conclusive to the medical staff when providing safe care for patients. This study provides an insight into one Swedish neonatal care unit, based on the interpretations of its medical staff.
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