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Problematika profesionálního onemocnění z dlouhodobého nadměrného jednostranného přetěžování horních končetin a jeho zdravotně sociální dopady / A study to research symptoms, development, health and social incidence of work related disease resulting from longterm single-sided overuse of the upper limbsPETERKOVÁ, Monika January 2009 (has links)
Occupational diseases from excessive and one-sided overloading of upper limbs are classified as diseases caused by physical factors. In the ``list of occupational diseases{\crqq} they are covered in chapter two. This group of diseases falls mainly under items 9 and 10 with the biggest proportion of occupational diseases caused by physical factors and it accounts for ca. 45% of the newly reported occupational diseases . Moreover, a slowly increasing trend in occurrence of those diseases has been reported in recent years.
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Healing paws: animals in the work-place assisting with stress managementCarstens, Michelle Santos 06 1900 (has links)
The importance of stress management is emphasized throughout this study as well as the need to cater stress management programmes to the unique needs of individuals. The possibility of introducing an animal-assisted stress management programme into the work environment is explored by means of a qualitative study in order to test out the feasibility of such an intervention. The positive physical and psychological effects animals have on humans has been extensively researched and reported. Eleven participants were randomly chosen from within the same department by means of purposive sampling. Semi-structured interviews were held with each participant and thematic analysis was used to analyse the transcribed interviews. Various themes were identified and explored with the most prominent highlighting the need for privacy, respect and connection. Although animals do have positive effects on some employees, there are individual differences that need to be considered. An electronic animal-assisted stress management intervention is recommended. / Psychology / M.A. (Psychology)
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Ruggedness of 1200V SiC Schottky and MPS DiodesFichtner, Susanne 14 December 2018 (has links)
Eine wichtige Eigenschaft von Leistungsdioden ist ihre Stoßstromrobustheit, also die Fähigkeit, einem kurzeitigen hohen Strom standzuhalten. Bei Dioden aus SiC wird dabei häufig auf die MPS-Struktur zurückgegriffen. In dieser Arbeit wird das Stoßstromverhalten von neuen 1200V-SiC-MPS-Dioden von Infineon untersucht. Dabei wird gemessen, welchem Strom die Dioden bei einem Halbsinus-Puls von 10ms standhalten. Das Ergebnis wird mit der Robustheit herkömmlicher SiC-Schottky-Dioden verglichen. Die Stoßstromrobustheit bei Parallelschaltung wird untersucht. Mittels elektro-thermischer Simulationen werden Möglichkeiten zur Verbesserung der Stoßstromrobustheit der Dioden erörtert. Hierbei wird die Schichtdicke erhöht und Kupfer statt Aluminium als Anodenmetallisierung angenommen. Des Weiteren wird das Simulationsmodell hinsichtlich der Lotschicht und eines reduzierten SiC-Substrats variiert.
Die MPS-Dioden weisen bei hohem Strom einen negativen differentiellen Widerstand auf, hervorgerufen durch die Injektion von Minoritätsladungsträgern aus den p-dotierten Gebieten. Die Aktivierung der Injektion von Minoritätsladungsträgern
in Abhängigkeit der Größe der p-dotierten Gebiete wird ebenfalls mittels Simulationen untersucht. Ein Vergleich verschiedener Caughey-Thomas-Parameter zur Modellierung der Ladungsträgermobilität in FEM-Bauelementsimulatoren wird durchgeführt.
Das Ausschaltverhalten der MPS-Dioden wird unter verschiedenen Bedingungen gemessen. Dazu zählen das Abschalten unter Anwendungsbedingungen, das Abschalten unter Überlast von bis zum fünfzehnfachen Nennstrom, das Abschalten mit hohen Strom- und Spannungssteilheiten und das Abschalten in Parallelschaltung und mit zusätzlicher parasitärer Induktivität.
Die Untersuchungen zeigen eine hohe Robustheit der neuen 1200V-SiC-MPS-Dioden. / The surge current ruggedness is an import property of power diodes. In case of SiC diodes this is realized by a Merged-pin-Schottky (MPS) structure. In this thesis the surge current ruggedness of novel 1200V SiC MPS diodes from Infineon is investigated. The maximum current during a half sine surge current pulse of 10ms is determined in measurements for various diodes and compared to the surge current ruggedness of conventional Schottky diodes. Furthermore, the surge current
ruggedness in parallel arrangement is measured. By the means of electro-thermal simulations options to improve the surge current ruggedness are investigated. The simulation model is varied concerning the diodes anode metalization layer thickness and material. The layer thickness is increased and the typical aluminum is replaced by copper. Additionally, the influence of the silicon carbide substrate thickness and the solder layer thickness and material on the surge current ruggedness is simulated.
The MPS diodes possess a negative differential resistance at high currents caused by the injection of minority carriers by the p-doped regions. The injection of minority carriers in dependence of the size of the p-regions is also examined in simulations. Furthermore, different parameter sets of the the Caughey-Thomas formula to describe the carrier mobility are compared.
The turn-off behavior of the diodes is measured under different conditions such as the turn-off from fifteen times the rated current, the turn-off with high current and voltage slopes and the turn-off in parallel arrangement and with additional inductance.
The investigation show a high robustness of the novel 1200V SiC MPS diodes.
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Design and Analysis of a Fractional-Slot Concentrated-Wound Permanent-Magnet-Assisted Synchronous Reluctance Machine / Konstruktion och analys av en permanent magnetiserade synkronreluktans motor med koncentrerad lindningCarvajal Almendros, Celia January 2015 (has links)
The growing need for simpler and cheaper manufacturing process has led to the research into fractional-slot concentrated-wound (FSCW) motors. This concept has been widely investigated for surface-mounted permanent magnet (SMPM) machines. This thesis studies the same concept applied for synchronous reluctance machines (SynRM). In this thesis, a FSCW, 15 kW, 4-pole, Permanent-Magnet-Assisted Synchronous Reluctance Machine (PMaSynRM) is designed and optimized using finite element method (FEM) based simulations for a set of given technical specifications. Initially, the existing synchronous machine topologies are investigated and later two novel motor designs are introduced and optimized, namely, a FSCW-SynRM and a FSCW-PMaSynRM with ferrite magnets. Moreover, the influence of replacing ferrite material with Neodymium Iron Boron (NdFeB) in the FSCWPMaSynRM is analyzed. Detailed investigations are performed in order to compare the impact of material at different temperatures. Variation of the torque-speed capabilities with temperature and a safe operating temperature range where the magnets are not demagnetized are identified. The variation of overload capability with temperature is also studied. Finally, a comparison between the new proposed designs and other existing standard design topologies is performed. It was found that FSCW-SynRM present lower efficiency, power factor and higher torque ripple than DW-SynRM. However when ferrite magnets are inserted in FSCW-PMaSynRM the efficiency, power factor and the flux-weakening capability exceed the values of the DW-SynRM. Moreover, by using NdFeB instead of ferrite in FSCW-PMaSynRM, the torque ripple, the fluxweakening capability and the overload capability improve and a wider safe temperature range for no demagnetization is achievable. Finally, it is found that DW-PMaSynRM with ferrite presents the same efficiency level as FSCW-PMaSynRM with ferrite, but higher power factor and lower torque ripple. However FSCW-PMaSynRM with ferrite have other advantages, such as shorter end-winding length, good fault-tolerant capability and simpler and cheaper manufacturing process. / Det växande behovet av enklare och billigare tillverkningsprocesser har lett till att den senaste forskningen om elektriska maskiner har fokuserats till maskiner med koncentrerade lindningar (FSCW). Detta koncept har i stor utsträckning undersökts för synkronmaskiner med ytmonterade permanentmagneter (SMPM). Detta projekt studerar samma lindning koncept, tillämpat på synkrona reluktansmaskiner (SynRM). I denna avhandling är en 15 kW, 4-polig, SynRM med FSCW och permanentmagneter (PMaSynRM) utformad och optimerad med användandet av finita elementmetoden (FEM). Simuleringar för en uppsättning givna, tekniska specifikationer har genomförts. Inledningsvis undersöks den befintliga synkronreluktansmaskinen med distribuerad lindning och senare presenteras och optimeras två nya motorkonstruktioner: en FSCW-SynRM respektive en FSCW-PMaSynRM med ferritmagneter. Vidare analyseras påverkan av att ersätta ferritmaterial med neodym-järn-bor (NdFeB) i FSCW-PMaSynRM. Detaljerade undersökningar genomförs för att jämföra effekten av materialen vid olika temperaturer. Variationen av maximal vridmomentet som funktion av hastighet vid olika temperaturer identifierar ett säkert driftstemperaturintervall där magneterna inte avmagnetiseras. Även variationen i överbelastningskapacitet vid olika temperaturer studeras. Slutligen görs en jämförelse mellan den nya föreslagna designen och andra befintliga topologier. Resultaten visar att FSCW-SynRM har lägre effektivitet och effektfaktor, samt högre vridmomentsrippel än DW-SynRM. När ferritmagneter är införda i FSCW-PMaSynRM erhålls emellertid högre värden på effektivitet, effektfaktor och fältförsvagning än i DW-SynRM. Genom att använda NdFeB i stället för ferrit i FSCW-PMaSynRM förbättras dessutom vridmomentet, fältförsvagningskapaciteten och överbelastningskapaciteten, vilket ger ett bredare temperaturområde utan avmagnetisering. Slutligen visar DW-PMaSynRM med ferrit samma effektivitetsnivå som FSCW-PMaSynRM med ferrit, men med högre effektfaktor och lägre vridmomentsrippel. FSCW-PMaSynRM med ferrit har dock andra fördelar, såsom kortare härvänderna, god feltolerans samt enklare och billigare tillverkningsprocess.
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It’s a Match: Predicting Potential Buyers of Commercial Real Estate Using Machine LearningHellsing, Edvin, Klingberg, Joel January 2021 (has links)
This thesis has explored the development and potential effects of an intelligent decision support system (IDSS) to predict potential buyers for commercial real estate property. The overarching need for an IDSS of this type has been identified exists due to information overload, which the IDSS aims to reduce. By shortening the time needed to process data, time can be allocated to make sense of the environment with colleagues. The system architecture explored consisted of clustering commercial real estate buyers into groups based on their characteristics, and training a prediction model on historical transaction data from the Swedish market from the cadastral and land registration authority. The prediction model was trained to predict which out of the cluster groups most likely will buy a given property. For the clustering, three different clustering algorithms were used and evaluated, one density based, one centroid based and one hierarchical based. The best performing clustering model was the centroid based (K-means). For the predictions, three supervised Machine learning algorithms were used and evaluated. The different algorithms used were Naive Bayes, Random Forests and Support Vector Machines. The model based on Random Forests performed the best, with an accuracy of 99.9%. / Denna uppsats har undersökt utvecklingen av och potentiella effekter med ett intelligent beslutsstödssystem (IDSS) för att prediktera potentiella köpare av kommersiella fastigheter. Det övergripande behovet av ett sådant system har identifierats existerar på grund av informtaionsöverflöd, vilket systemet avser att reducera. Genom att förkorta bearbetningstiden av data kan tid allokeras till att skapa förståelse av omvärlden med kollegor. Systemarkitekturen som undersöktes bestod av att gruppera köpare av kommersiella fastigheter i kluster baserat på deras köparegenskaper, och sedan träna en prediktionsmodell på historiska transkationsdata från den svenska fastighetsmarknaden från Lantmäteriet. Prediktionsmodellen tränades på att prediktera vilken av grupperna som mest sannolikt kommer köpa en given fastighet. Tre olika klusteralgoritmer användes och utvärderades för grupperingen, en densitetsbaserad, en centroidbaserad och en hierarkiskt baserad. Den som presterade bäst var var den centroidbaserade (K-means). Tre övervakade maskininlärningsalgoritmer användes och utvärderades för prediktionerna. Dessa var Naive Bayes, Random Forests och Support Vector Machines. Modellen baserad p ̊a Random Forests presterade bäst, med en noggrannhet om 99,9%.
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Le bien-être psychologique en relation d’aide : vers un modèle empirique intégrateurFouda Mah, Yannick Hubert 04 1900 (has links)
La santé mentale des professionnels en relation d’aide est sous la loupe depuis plus d’une cinquantaine d’années grâce entre autres aux travaux de Freudenberger sur le sujet. En effet, exposés dans le cadre de leur travail aux expériences et vécus traumatiques des personnes et, à la nécessité d’y apporter une réponse, les professionnels de la santé et des services sociaux sont plus à risque de troubles tant physiques que psychologiques reliés au travail. Cet enjeu entraine une vulnérabilité des organisations à travers l’absentéisme et la perte du personnel qualifié, et affecte ainsi la fourniture et la qualité de service.
Des avancées ont été faites et plusieurs concepts proposés pour tenter de mieux cerner le bien-être psychologique des professionnels en relation d’aide ont émergé. Ces avancées majoritairement en silo ne permettent cependant pas d’avoir une idée globale de la problématique.
La présente thèse en utilisant un échantillon d’intervenants impliqués auprès de la protection de la jeunesse propose et teste un modèle intégrant les principaux concepts sur le sujet notamment l’épuisement professionnel, la qualité de vie professionnelle (incluant la fatigue et la satisfaction de compassion), le stress traumatique secondaire, le traumatisme vicariant ainsi que des troubles apparentés ou comorbides tels que le stress posttraumatique, la dépression et l’anxiété. Le modèle inclut les caractéristiques de l’environnement de travail et l’empathie comme facteurs reliés au bien-être psychologique en relation d’aide et explore le stress perçu comme modérateur potentiel dans ce cadre.
L’objectif a été poursuivi par une démarche en trois étapes dont 1) la réduction et la validation de l’échelle ProQOL-5 servant à évaluer la qualité de vie professionnelle, principal concept utilisé dans les études de bien-être psychologique en relation d’aide 2) l’exploration d’une variable intégratrice empirique représentant le bien-être psychologique en relation d’aide à partir des principaux concepts y étant reliés (épuisement professionnel, qualité de vie professionnelle, stress traumatique secondaire, traumatisme vicariant, stess posttraumatique, dépression et anxiété), et enfin 3) l’exploitation de ces résultats pour définir et tester un modèle incluant l’environnement de travail et l’empathie comme facteurs reliés au bien-être psychologique, avec le stress perçu comme modérateur potentiel.
Les analyses ont permis de proposer et valider une version réduite à 16 items de l’échelle de ProQOL-5 (contre 30) avec un alpha de Cronbach de 0,87. Il en ressort également que le bien-être psychologique des professionnels en relation d’aide semble bien, tel que défini par Stamm à travers le concept de qualité de vie professionnelle, être constitué d’une composante positive, le sens d’efficacité et de satisfaction, et de deux composantes négatives à savoir l’épuisement psychologique et le traumatisme. Par ailleurs, l’environnement de travail s’est révélé un facteur important en ayant un lien significatif avec chacune des trois composantes du bien-être psychologique. En ce qui concerne l’empathie, le souci empathique s’est révélé avoir un lien positif avec le sens d’efficacité et de satisfaction, et négatif avec l’épuisement psychologique et le traumatisme. Par contre, la détresse personnelle reliée à l’engagement empathique s’est révélée avoir un lien positif avec l’épuisement psychologique et le traumatisme. Le rôle du stress perçu comme modérateur a aussi pu être validé notamment sur les liens entre l’environnement de travail et l’épuisement psychologique, l’environnement de travail et le trauma, le souci empathique et l’épuisement psychologique et finalement la détresse personnelle liée à l’empathie et le trauma. Ces résultats permettent ainsi d’avoir en un portrait, une idée globale sur le bien-être psychologique des professionnels en relation d’aide et ses liens avec l’environnement de travail et l’empathie. / The occupational mental health of child protection workers is of great concern since they are exposed directly and indirectly to traumatic experiences and involved people with special needs. In order to tailor efficient intervention programs to address this issue, one has to know the essence of the problem and which factors should be tackled.
The present thesis proposed to use the major findings on studies on burnout, compassion fatigue, vicarious trauma, secondary traumatic stress, with the aim to propose and test a model that integrates these main concepts and well-documented factors (work environment, empathy, perceived stress) in the development of child protection workers’ occupational mental health.
The objective was pursued by a three-step approach including 1) the reduction and validation of the ProQOL-5, the main scale used to assess the quality of professional life of social and healthcare professionals, 2) the exploration of an empirical variable representing the social and healthcare professionals’mental health based on the main concepts related to it (burnout, compassion and satisfaction fatigue, secondary traumatic stress, vicarious trauma, posttraumatic stress, anxiety, depression), and finally 3) the use of these results to define and test a model including environment characteristics and empathy as related factors, and perceived stress as a potential moderator. A sample of child protection workers was used for this purpose.
A reduced version of ProQOL-5 with 16 items (compared to 30) was reached. This scale showed good psychometrics with a global Cronbach’s alpha of .87 and more precisely .86 for Compassion satisfaction, .82 for Burnout, and .74 for Secondary Traumatic Stress.
Results also suggested that child protection workers’ mental health seems to consist of a positive component, the sense of efficacy and satisfaction, and two negative components, namely psychological exhaustion and trauma as proposed by Stamm (through the professional quality of life concept).
Work environment characteristics and empathic concern appeared to have positive links with sense of satisfaction and efficacy in child protection workers and negative links with psychological exhaustion and trauma. Conversely, personal distress empathy was found to have positive links with psychological exhaustion and trauma, and negative link with the sense of satisfaction and efficacy of child protection workers. The results also showed that these relations were moderated by the level of perceived stress.
These results gave an integrated portrait of what could be the child protection workers’mental health reality and the differentiated contribution of work environment and empathy. This can help to improve interventions targeting child protection workers’ mental health.
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Mind the gap : En fenomenologisk analys av möjligheter och hinder för entreprenöriell förnybar elproduktion i Stockholms skärgårdChristensson, Ellinor, Svedberg, Simon January 2023 (has links)
This study uses Friederike Welter’s (2011; Welter, Baker & Wirsching 2019) concept of contextualizing entrepreneurship by analyzing discrete and omnibus variables within contexts to distinguish underlaying factors that hinder or create opportunities for increased entrepreneurship within renewable energy sources in Stockholm’s archipelago. The study is based on semi-structured interviews from stakeholders who work with renewable energy in the area both within the private and public sector. The sample number was selected by purposive sampling and consisted of 7 respondents. The qualitative analysis resulted in five phenomenologically derived themes. The results shine a light on overarching obstacles that hinder the establishment of renewable energy production in Stockholm’s archipelago such as overcomplicated institutional processes as well as overcomplicated institutional permit processes, resistance to change and lack of responsibility, regulatory gaps and regulatory overload, minimal access to the energy market and that the infrastructure of Stockholm’s electrical grid is underdeveloped. / Studien använder Friederike Welters (2011; Welter, Baker & Wirsching 2019) koncept om att kontextualisera entreprenörskap genom att analysera diskreta- samt omnibusvariabler inom kontexter för att urskilja underliggande faktorer som hindrar eller skapar möjligheter för framgångsrikt entreprenörskap inom förnybar energi i Stockholms skärgård. Studiens empiri baseras på semistrukturerade intervjuer av aktörer, både inom privat och offentlig sektor, som arbetar med förnybar energi i området. Respondenterna valdes ut genom strategiskt urval och bestod av sju respondenter. Studien antar en kvalitativ metod och resulterade i fem fenomenologiskt utvalda teman. Studiens resultat belyser förbättringsmöjligheter genom att urskilja övergripande barriärer som hindrar den entreprenöriella etableringen av förnybar energi i Stockholms skärgård såsom regulatoriska glapp, bristande definition och regelverk för Sveriges skärgård, motstånd mot förändring, överkomplicerade institutionella tillståndsprocesser och regulatorisk överbelastning, brist på tillgång till energimarknaden samt en underutvecklad infrastruktur av Stockholms elnätverk.
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Framgångsrik hållbarhetskommunikation - vad är det? : En tematisk analys av Naturkompaniet, Systembolaget och MAX Burgers hållbarhetskommunikation på InstagramOskarsson, Jessica, Markén, Matilda January 2023 (has links)
This study aims to investigate how companies perceived as sustainable by consumers engage in sustainability communication on social media. An abundance of information is common in today's digitized society - how do you as a company push through the noise - especially, with a serious message that does not belong on social media? The basis for determining which companies succeed in their sustainability communication is based on the Sustainable Brand Index Report from 2022. The selection and criteria resulted in three companies from three different industries for our analysis: Naturkompaniet, Systembolaget and MAX Burgers. We have reviewed all companies' Instagram and after the selection, 5 Instagram posts from each company are analyzed. The analysis is based on theories about sustainable communication, emotions and cognitive load on the part of the recipient. Models that are explained and intended to be the basis for results and analysis are the Affect–reason–involvement model (ARI model) and the Communication via Syncretic and Analytic Cognition Scale (CASC scale) as well as the Limited Capacity Model of Motivated Mediated Message Processing (LC4MP). To answer the research question "How do Systembolaget, Naturkompaniet and MAX Burgers present their sustainability communication on Instagram?" and the sub-question "How do Systembolaget, Naturkompaniet and MAX Burgers use emotional aspects and how do they take into account the recipients' cognitive load in their sustainability communication on Instagram?" in relation to the theories, we use a thematic content analysis. The analysis resulted in four overarching themes found: Behavior Change, Memorable, Encouraging and Serious Undertone. The conclusion is that companies that carry out successful sustainability communication present their messages in a simple way which is easy to understand, often with humorous elements and relatable factors.
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Affärssystemets roll i beslutsfattandet inom SMF : En kvalitativ studie om affärssystemets påverkan på beslutsfattande inom små- och medelstora företag / The ERP system's role in decision-making within SME:sShafi, Michel, Walizai, Sunita, Younan, Rudy January 2022 (has links)
Bakgrund: Lättillgänglig och reliabel information blir betydande för effektivt beslutsfattande. Således identifieras förbättringen av beslutsfattande som den drivande orsaken till att företag införskaffar affärssystem som avser att skapa underlag, utföra analyser samt ta fram relevant data. Beslutsunderlaget som skapas ökar kvaliteten och understödjer beslutsfattandet. Enterprise Resource Planning (ERP) system, även känt som Affärssystem, är en standardiserad programvara som används för hela organisationer över flera funktioner med avseende till att effektivisera affärsområden som bokföring, inköp, tillverkning och försäljning. Numera finns det alternativ för mindre organisationer att införskaffa affärssystem, vilket resulterar i att fler SMF väljer att vända sig till mjukvaran. Affärssystemets syfte om att underlätta verksamhetens drift och förbättringar i arbetsflöden genom standardisering bidrar till att företagen blir mer resurseffektiva inom de respektive processerna. Syfte: Syftet med studien är att undersöka hur små-och medelstora företag använder sig av affärssystem och vilka konsekvenser det får för beslutsfattandet. Metod: Studien utgår ifrån en kvalitativ forskningsmetod. Empirin utgörs av tolv semistrukturerade intervjuer med tre små och medelstora företag. Respondenterna valdes ut genom ett målstyrt urval. För att besvara studiens problemformulering har det empiriska materialet analyserats med den teoretiska referensramen. Slutsats: Resultatet av studien visar att affärssystemet påverkar små- och medelstora företags beslutsfattning. Följande områden blir påverkade; relevans i beslut, förbättrat beslutsunderlag, delegering av beslut inom organisationen och förbättrad effektivitet vid beslut. / Background: Easily accessible and reliable information becomes essential for effective decision-making. Thus, the improvement of decision-making is identified as the driving reason why companies acquire business systems that intend to create data, perform analyzes and produce relevant data. The decision-making basis that is created increases the quality and supports decision-making. Enterprise Resource Planning (ERP) systems, also known as Business Systems, are a standardized software, used for entire organizations across multiple functions to make business areas such as accounting, purchasing, manufacturing and sales more effective. Nowadays, there are options for smaller organizations to acquire business systems, which results in more SMEs choosing to turn to the software. The purpose of the ERP system to facilitate the operation of the business and improvements in work flows through standardization, contributes to the companies becoming more resource efficient within the respective processes. Purpose: The purpose of this study is to investigate how small and medium-sized companies use ERP systems and what consequences this has for decision-making. Methodology: The study is based on a qualitative research method. The empirics consists of twelve semi-structured interviews with three small and medium-sized enterprises. The respondents were selected through a purposive sampling. In order to answer the study's problem formulation, the empirical material has been analyzed with the theoretical frame of reference. Conclusion: The results of the study show that ERP systems affect the decision-making of small and medium-sized enterprises. The following areas are affected; relevance in decisions,5improved basis for decisions, delegation of decisions within the organization and improved efficiency in decisions.
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CoFramer : Ett diskussionsformat för djupa diskussioner på publika forum med låg Information Overload inspirerat av Philosophy for Children / CoFramer : A discussion format for deeper discussions on public forums with low information overload inspired by Philosophy for ChildrenLundberg, Christoffer January 2019 (has links)
Syftet med studien är att presentera ett designkoncept för publika diskussioner på nätet med målet att uppnå djupare diskussioner och minska mängden information overload. Arbetet använder metoden Concept Driven Interaction Design (CDID) som går ut på att skapa ett designkoncept utifrån flera olika teorier som appliceras genom interaktionsdesign. Ett designkoncept innehåller tre delar: ett namn, ett syfte och huvudprinciper. CDID innehåller sju steg som arbetet är utformat efter: 1. Concept Generation – Summeras i en tabell som jämför diskussioner i forum (med flera antagande) och diskussioner med hjälp av metoden Philosophy for Children (P4C), samt annan teori. 2. Concept Exploration – Åtta olika designaspekter identifieras utifrån jämförelsetabellen. 3. Internal Concept Critique – Designaspekterna jämförs med två snarlika diskussionsformat. 4. Design of Artifacts – Designkoncept version 1 skapas. 5. External Design Critique – Intervjuer utförs för att undersöka intervjupersonerna generella erfarenheter av online diskussioner, testar antagandena från jämförelsetabellen och ge direkt feedback på första versionen av designkonceptet. 6. Concept Revisited – Ändringar görs baserat på intervjumaterial och direkt feedback. 7. Concept Contextualization – Designkonceptet kopplas tillbaka till litteraturen. Studien resulterar i ett designkoncept kallat CoFramer och stödjer dessa huvudprinciper som ställs i kontrast till material som identifierats genom intervjuerna: Tabell 1: CoFramers huvudprinciper och faktorer från intervjuer om diskussioner på forum. CoFramers huvudprinciper | Från intervjuer om diskussioner på forum Strukturerad början och slut | Diskussion utan tydligt slut Begränsat antal deltagare | Stor mängd deltagare Minimum antal deltagare | Många inaktiva åskådare Explicita deltagare | Lite information om deltagare Gemensamma förutsättningar | Otydlighet kring deltagares förutsättningar Begränsad informationstäthet per inlägg | Långa inlägg och/eller snabba inlägg Den röda tråden och parallella trådar | Oftast parallella trådar Aktiv samtalsledare | Outredda missförstånd Studien indikerar på att CoFramer bör resultera i mer strukturerade diskussioner och som utsätter användaren för en lägre mängd information overload och mindre grounding cost jämfört med vad som vanligtvis uppstår i publika diskussioner online. / The focus of this essay is to develop a design concept for online public discussions with deep discussions and low information overload. The method used is Concept Driven Interaction Design (CDID) which involves constructing a design concept by applying a variety of theories in tangible interaction design. A design concept has three basic parts: a name, high-level goals and outlines generic principles. CDID includes seven steps which is used in this work: 1. Concept Generation – Formatted into a table that compare forum discussion (with several hypothesis) compared to discussions with the method Philosophy for Children (P4C) and other theories. 2. Concept Exploration – Eight distinct design aspects are identified from the comparison table. 3. Internal Concept Critique – The design aspects are compared to three similar discussion formats. 4. Design of Artifacts – Design concept version 1 is created. 5. External Design Critique – Interviews are conducted to explore their general experience of online discussions, investigate the hypothesis from the comparison table and to seek direct feedback on the first draft of the design concept. 6. Concept Revisited – Changes are made to the design concept based on the interview material and the direct feedback. 7. Concept Contextualization – The design concept is related to the original literature. The result of the study is a design concept named CoFramer. CoFramer’s generic principles are summarized and contrasted against factors identified from the interview material in this table: Tabell 2: CoFramer’s generic principles and interviews about online discussions. CoFramer’s generic principles | From interview material on forum discussion Organized start and ending | Discussions without clear ending Limited number of participants | Large number of participants Minimum number of participants | Large number of inactive spectators Explicit participants | Low information about participants Common conditions | Vagueness in participants conditions Limited information density per post | Long posts and/or fast posts The red thread and parallel threads | Often parallel threads Active facilitator | Unresolved misunderstandings The study indicates that CoFramer would create more structured discussions with a lower amount of information overload and less grounding cost compared what normally arise in public online discussions.
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