ݺߣshows by User: IstvanKoren / http://www.slideshare.net/images/logo.gif ݺߣshows by User: IstvanKoren / Wed, 22 Apr 2020 07:40:35 GMT ݺߣShare feed for ݺߣshows by User: IstvanKoren A Link Generator for Increasing the Utility of OpenAPI-to-GraphQL Translations /slideshow/a-link-generator-for-increasing-the-utility-of-openapi-to-graphql-translations/232407563 a-link-generator-for-increasing-the-utility-of-openapi-to-graphql-translations-200422074035
Standardized interfaces are the connecting link of today's distributed systems, facilitating access to data services in the cloud. REST APIs have been prevalent over the last years, despite several issues like over- and underfetching of resources. GraphQL enjoys rapid adoption, resolving these problems by using statically typed queries. However, the redevelopment of services to the new paradigm is costly. Therefore, several approaches for the successive migration from REST to GraphQL have been proposed, many leveraging OpenAPI service descriptions. In this article, we present the findings of our empirical evaluation on the APIs.guru directory and identify several schema translation challenges. These include less expressive schema types in GraphQL, as well as missing meta information about related resources in OpenAPI. To this end, we developed the open source Link Generator, that analyzes OpenAPI documents and automatically adds links to increase translation utility. This fundamentally benefits around 34% of APIs in the APIs.guru directory. Our findings and tool support contribute to the ongoing discussion about the migration of REST APIs to GraphQL, and provide developers with valuable insights into common pitfalls, to reduce friction during API transformation.]]>

Standardized interfaces are the connecting link of today's distributed systems, facilitating access to data services in the cloud. REST APIs have been prevalent over the last years, despite several issues like over- and underfetching of resources. GraphQL enjoys rapid adoption, resolving these problems by using statically typed queries. However, the redevelopment of services to the new paradigm is costly. Therefore, several approaches for the successive migration from REST to GraphQL have been proposed, many leveraging OpenAPI service descriptions. In this article, we present the findings of our empirical evaluation on the APIs.guru directory and identify several schema translation challenges. These include less expressive schema types in GraphQL, as well as missing meta information about related resources in OpenAPI. To this end, we developed the open source Link Generator, that analyzes OpenAPI documents and automatically adds links to increase translation utility. This fundamentally benefits around 34% of APIs in the APIs.guru directory. Our findings and tool support contribute to the ongoing discussion about the migration of REST APIs to GraphQL, and provide developers with valuable insights into common pitfalls, to reduce friction during API transformation.]]>
Wed, 22 Apr 2020 07:40:35 GMT /slideshow/a-link-generator-for-increasing-the-utility-of-openapi-to-graphql-translations/232407563 IstvanKoren@slideshare.net(IstvanKoren) A Link Generator for Increasing the Utility of OpenAPI-to-GraphQL Translations IstvanKoren Standardized interfaces are the connecting link of today's distributed systems, facilitating access to data services in the cloud. REST APIs have been prevalent over the last years, despite several issues like over- and underfetching of resources. GraphQL enjoys rapid adoption, resolving these problems by using statically typed queries. However, the redevelopment of services to the new paradigm is costly. Therefore, several approaches for the successive migration from REST to GraphQL have been proposed, many leveraging OpenAPI service descriptions. In this article, we present the findings of our empirical evaluation on the APIs.guru directory and identify several schema translation challenges. These include less expressive schema types in GraphQL, as well as missing meta information about related resources in OpenAPI. To this end, we developed the open source Link Generator, that analyzes OpenAPI documents and automatically adds links to increase translation utility. This fundamentally benefits around 34% of APIs in the APIs.guru directory. Our findings and tool support contribute to the ongoing discussion about the migration of REST APIs to GraphQL, and provide developers with valuable insights into common pitfalls, to reduce friction during API transformation. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/a-link-generator-for-increasing-the-utility-of-openapi-to-graphql-translations-200422074035-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Standardized interfaces are the connecting link of today&#39;s distributed systems, facilitating access to data services in the cloud. REST APIs have been prevalent over the last years, despite several issues like over- and underfetching of resources. GraphQL enjoys rapid adoption, resolving these problems by using statically typed queries. However, the redevelopment of services to the new paradigm is costly. Therefore, several approaches for the successive migration from REST to GraphQL have been proposed, many leveraging OpenAPI service descriptions. In this article, we present the findings of our empirical evaluation on the APIs.guru directory and identify several schema translation challenges. These include less expressive schema types in GraphQL, as well as missing meta information about related resources in OpenAPI. To this end, we developed the open source Link Generator, that analyzes OpenAPI documents and automatically adds links to increase translation utility. This fundamentally benefits around 34% of APIs in the APIs.guru directory. Our findings and tool support contribute to the ongoing discussion about the migration of REST APIs to GraphQL, and provide developers with valuable insights into common pitfalls, to reduce friction during API transformation.
A Link Generator for Increasing the Utility of OpenAPI-to-GraphQL Translations from IstvanKoren
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Immersive Community Analytics for Wearable Enhanced Learning (HCI International 2019) /slideshow/immersive-community-analytics-for-wearable-enhanced-learning-hci-international-2019/190714031 immersivecommunityanalyticsforwearableenhancedlearninghcii2019-191105144849
Nowadays, we can use immersive interaction and display technologies in collaborative analytical reasoning and decision making scenarios. In order to support heterogeneous professional communities of practice in their digital transformation, it is necessary not only to provide the technologies but to understand the work practices under transformations as well as the security, privacy and other concerns of the communities. Our approach is a comprehensive and evolutionary socio-technological learning analytics and design process leading to a flexible infrastructure where professional communities can co-create their wearable enhanced learning solution. In the core, we present a multi-sensory fusion recorder and player that allows the recordings of multi-actor activity sequences by human activity recognition and the computational support of immersive learning analytics to support training scenarios. Our approach enables cross-domain collaboration by fusing, aggregating and visualizing sensor data coming from wearables and modern production systems. The software is open source and based on the outcomes of several national and international funded projects.]]>

Nowadays, we can use immersive interaction and display technologies in collaborative analytical reasoning and decision making scenarios. In order to support heterogeneous professional communities of practice in their digital transformation, it is necessary not only to provide the technologies but to understand the work practices under transformations as well as the security, privacy and other concerns of the communities. Our approach is a comprehensive and evolutionary socio-technological learning analytics and design process leading to a flexible infrastructure where professional communities can co-create their wearable enhanced learning solution. In the core, we present a multi-sensory fusion recorder and player that allows the recordings of multi-actor activity sequences by human activity recognition and the computational support of immersive learning analytics to support training scenarios. Our approach enables cross-domain collaboration by fusing, aggregating and visualizing sensor data coming from wearables and modern production systems. The software is open source and based on the outcomes of several national and international funded projects.]]>
Tue, 05 Nov 2019 14:48:49 GMT /slideshow/immersive-community-analytics-for-wearable-enhanced-learning-hci-international-2019/190714031 IstvanKoren@slideshare.net(IstvanKoren) Immersive Community Analytics for Wearable Enhanced Learning (HCI International 2019) IstvanKoren Nowadays, we can use immersive interaction and display technologies in collaborative analytical reasoning and decision making scenarios. In order to support heterogeneous professional communities of practice in their digital transformation, it is necessary not only to provide the technologies but to understand the work practices under transformations as well as the security, privacy and other concerns of the communities. Our approach is a comprehensive and evolutionary socio-technological learning analytics and design process leading to a flexible infrastructure where professional communities can co-create their wearable enhanced learning solution. In the core, we present a multi-sensory fusion recorder and player that allows the recordings of multi-actor activity sequences by human activity recognition and the computational support of immersive learning analytics to support training scenarios. Our approach enables cross-domain collaboration by fusing, aggregating and visualizing sensor data coming from wearables and modern production systems. The software is open source and based on the outcomes of several national and international funded projects. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/immersivecommunityanalyticsforwearableenhancedlearninghcii2019-191105144849-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Nowadays, we can use immersive interaction and display technologies in collaborative analytical reasoning and decision making scenarios. In order to support heterogeneous professional communities of practice in their digital transformation, it is necessary not only to provide the technologies but to understand the work practices under transformations as well as the security, privacy and other concerns of the communities. Our approach is a comprehensive and evolutionary socio-technological learning analytics and design process leading to a flexible infrastructure where professional communities can co-create their wearable enhanced learning solution. In the core, we present a multi-sensory fusion recorder and player that allows the recordings of multi-actor activity sequences by human activity recognition and the computational support of immersive learning analytics to support training scenarios. Our approach enables cross-domain collaboration by fusing, aggregating and visualizing sensor data coming from wearables and modern production systems. The software is open source and based on the outcomes of several national and international funded projects.
Immersive Community Analytics for Wearable Enhanced Learning (HCI International 2019) from IstvanKoren
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Augmented Reality Lernkontexte - Eine Europäische Perspektive https://de.slideshare.net/slideshow/augmented-reality-lernkontexte-eine-europische-perspektive/118265662 augmented-reality-lernkontexte-eine-europaeische-perspektive-181005063941
Augmented Reality (AR) ist auf dem Weg, sich in der Wirtschaft und der Lehre zu etablieren. In den letzten Jahren sind durch Forschung und Entwicklung viele neue Technologien, Methoden und Softwareentwicklungswerkzeuge auf den Markt gekommen. Allerdings fehlen sowohl in der Erstellung von Lehrmaterialien, als auch in der Nutzung von AR in der Lehre einheitliche Richtlinien oder gar Standards. Darüber hinaus müssen in der Wirtschaft genügend gut ausgebildete Fachkräfte vorhanden sein, welche die aufgestellten AR-Konzepte umsetzen können, so dass ein Transfer aus der Hochschule in die Wirtschaft notwendig ist. Daher gehen wir in diesem Beitrag sowohl auf Herausforderungen im Lernen mit AR, als auch auf die speziellen Bedürfnisse des Lernens über AR ein. Wir nehmen dazu als Informatiker eine europäische, interdisziplinäre und anwendungsnahe Perspektive ein, da unsere Erfahrungen aus mehreren geförderten europäischen Projekten in diesen Bereichen stammen. Dabei versuchen wir auch, neue Impulse in Lehrkontexten in unserem Rahmenwerk aufzunehmen, wie Gamifizierung, Learning Analytics und Experience Capturing. Zusätzlich weisen wir auf Standardisierungsbemühungen wie IEEE ARLEM hin. Die konzeptuellen und technischen Lösungsansätze stellen wir als Open Content und Open Source zur Verfügung, um einer möglichst schnellen Verbreitung Vorschub zu leisten. Aus diesem Grund laden alle unsere Aktivitäten explizit zur aktiven Teilnahme ein.]]>

Augmented Reality (AR) ist auf dem Weg, sich in der Wirtschaft und der Lehre zu etablieren. In den letzten Jahren sind durch Forschung und Entwicklung viele neue Technologien, Methoden und Softwareentwicklungswerkzeuge auf den Markt gekommen. Allerdings fehlen sowohl in der Erstellung von Lehrmaterialien, als auch in der Nutzung von AR in der Lehre einheitliche Richtlinien oder gar Standards. Darüber hinaus müssen in der Wirtschaft genügend gut ausgebildete Fachkräfte vorhanden sein, welche die aufgestellten AR-Konzepte umsetzen können, so dass ein Transfer aus der Hochschule in die Wirtschaft notwendig ist. Daher gehen wir in diesem Beitrag sowohl auf Herausforderungen im Lernen mit AR, als auch auf die speziellen Bedürfnisse des Lernens über AR ein. Wir nehmen dazu als Informatiker eine europäische, interdisziplinäre und anwendungsnahe Perspektive ein, da unsere Erfahrungen aus mehreren geförderten europäischen Projekten in diesen Bereichen stammen. Dabei versuchen wir auch, neue Impulse in Lehrkontexten in unserem Rahmenwerk aufzunehmen, wie Gamifizierung, Learning Analytics und Experience Capturing. Zusätzlich weisen wir auf Standardisierungsbemühungen wie IEEE ARLEM hin. Die konzeptuellen und technischen Lösungsansätze stellen wir als Open Content und Open Source zur Verfügung, um einer möglichst schnellen Verbreitung Vorschub zu leisten. Aus diesem Grund laden alle unsere Aktivitäten explizit zur aktiven Teilnahme ein.]]>
Fri, 05 Oct 2018 06:39:41 GMT https://de.slideshare.net/slideshow/augmented-reality-lernkontexte-eine-europische-perspektive/118265662 IstvanKoren@slideshare.net(IstvanKoren) Augmented Reality Lernkontexte - Eine Europäische Perspektive IstvanKoren Augmented Reality (AR) ist auf dem Weg, sich in der Wirtschaft und der Lehre zu etablieren. In den letzten Jahren sind durch Forschung und Entwicklung viele neue Technologien, Methoden und Softwareentwicklungswerkzeuge auf den Markt gekommen. Allerdings fehlen sowohl in der Erstellung von Lehrmaterialien, als auch in der Nutzung von AR in der Lehre einheitliche Richtlinien oder gar Standards. Darüber hinaus müssen in der Wirtschaft genügend gut ausgebildete Fachkräfte vorhanden sein, welche die aufgestellten AR-Konzepte umsetzen können, so dass ein Transfer aus der Hochschule in die Wirtschaft notwendig ist. Daher gehen wir in diesem Beitrag sowohl auf Herausforderungen im Lernen mit AR, als auch auf die speziellen Bedürfnisse des Lernens über AR ein. Wir nehmen dazu als Informatiker eine europäische, interdisziplinäre und anwendungsnahe Perspektive ein, da unsere Erfahrungen aus mehreren geförderten europäischen Projekten in diesen Bereichen stammen. Dabei versuchen wir auch, neue Impulse in Lehrkontexten in unserem Rahmenwerk aufzunehmen, wie Gamifizierung, Learning Analytics und Experience Capturing. Zusätzlich weisen wir auf Standardisierungsbemühungen wie IEEE ARLEM hin. Die konzeptuellen und technischen Lösungsansätze stellen wir als Open Content und Open Source zur Verfügung, um einer möglichst schnellen Verbreitung Vorschub zu leisten. Aus diesem Grund laden alle unsere Aktivitäten explizit zur aktiven Teilnahme ein. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/augmented-reality-lernkontexte-eine-europaeische-perspektive-181005063941-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Augmented Reality (AR) ist auf dem Weg, sich in der Wirtschaft und der Lehre zu etablieren. In den letzten Jahren sind durch Forschung und Entwicklung viele neue Technologien, Methoden und Softwareentwicklungswerkzeuge auf den Markt gekommen. Allerdings fehlen sowohl in der Erstellung von Lehrmaterialien, als auch in der Nutzung von AR in der Lehre einheitliche Richtlinien oder gar Standards. Darüber hinaus müssen in der Wirtschaft genügend gut ausgebildete Fachkräfte vorhanden sein, welche die aufgestellten AR-Konzepte umsetzen können, so dass ein Transfer aus der Hochschule in die Wirtschaft notwendig ist. Daher gehen wir in diesem Beitrag sowohl auf Herausforderungen im Lernen mit AR, als auch auf die speziellen Bedürfnisse des Lernens über AR ein. Wir nehmen dazu als Informatiker eine europäische, interdisziplinäre und anwendungsnahe Perspektive ein, da unsere Erfahrungen aus mehreren geförderten europäischen Projekten in diesen Bereichen stammen. Dabei versuchen wir auch, neue Impulse in Lehrkontexten in unserem Rahmenwerk aufzunehmen, wie Gamifizierung, Learning Analytics und Experience Capturing. Zusätzlich weisen wir auf Standardisierungsbemühungen wie IEEE ARLEM hin. Die konzeptuellen und technischen Lösungsansätze stellen wir als Open Content und Open Source zur Verfügung, um einer möglichst schnellen Verbreitung Vorschub zu leisten. Aus diesem Grund laden alle unsere Aktivitäten explizit zur aktiven Teilnahme ein.
from IstvanKoren
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The Exploitation of OpenAPI Documents for the Generation of Web Frontends /slideshow/the-exploitation-of-openapi-documents-for-the-generation-of-web-frontends/95928086 thewebconf18-openapi-to-ifml-to-html5-180504091840
TheWebConf 2018 Developer Track Presentation. New Internet-enabled devices and Web services are introduced on a daily basis. Documentation formats are available that describe their functionalities in terms of API endpoints and parameters. In particular, the OpenAPI specification has gained considerable influence over the last years. Web-based solutions exist that generate interactive OpenAPI documentation with HTML5 & JavaScript. They allow developers to quickly get an understanding what the services and devices do and how they work. However, the generated user interfaces are far from real-world practices of designers and end users. We present an approach to overcome this gap, by using a model-driven methodology resulting in state-of-the-art responsive Web user interfaces. To this end, we use the Interaction Flow Modeling Language (IFML) as intermediary model specification to bring together APIs and frontends. Our implementation is based on open standards like Web Components and SVG. A screencast of our tool is available at https://youtu.be/KFOPmPShak4]]>

TheWebConf 2018 Developer Track Presentation. New Internet-enabled devices and Web services are introduced on a daily basis. Documentation formats are available that describe their functionalities in terms of API endpoints and parameters. In particular, the OpenAPI specification has gained considerable influence over the last years. Web-based solutions exist that generate interactive OpenAPI documentation with HTML5 & JavaScript. They allow developers to quickly get an understanding what the services and devices do and how they work. However, the generated user interfaces are far from real-world practices of designers and end users. We present an approach to overcome this gap, by using a model-driven methodology resulting in state-of-the-art responsive Web user interfaces. To this end, we use the Interaction Flow Modeling Language (IFML) as intermediary model specification to bring together APIs and frontends. Our implementation is based on open standards like Web Components and SVG. A screencast of our tool is available at https://youtu.be/KFOPmPShak4]]>
Fri, 04 May 2018 09:18:40 GMT /slideshow/the-exploitation-of-openapi-documents-for-the-generation-of-web-frontends/95928086 IstvanKoren@slideshare.net(IstvanKoren) The Exploitation of OpenAPI Documents for the Generation of Web Frontends IstvanKoren TheWebConf 2018 Developer Track Presentation. New Internet-enabled devices and Web services are introduced on a daily basis. Documentation formats are available that describe their functionalities in terms of API endpoints and parameters. In particular, the OpenAPI specification has gained considerable influence over the last years. Web-based solutions exist that generate interactive OpenAPI documentation with HTML5 & JavaScript. They allow developers to quickly get an understanding what the services and devices do and how they work. However, the generated user interfaces are far from real-world practices of designers and end users. We present an approach to overcome this gap, by using a model-driven methodology resulting in state-of-the-art responsive Web user interfaces. To this end, we use the Interaction Flow Modeling Language (IFML) as intermediary model specification to bring together APIs and frontends. Our implementation is based on open standards like Web Components and SVG. A screencast of our tool is available at https://youtu.be/KFOPmPShak4 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/thewebconf18-openapi-to-ifml-to-html5-180504091840-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> TheWebConf 2018 Developer Track Presentation. New Internet-enabled devices and Web services are introduced on a daily basis. Documentation formats are available that describe their functionalities in terms of API endpoints and parameters. In particular, the OpenAPI specification has gained considerable influence over the last years. Web-based solutions exist that generate interactive OpenAPI documentation with HTML5 &amp; JavaScript. They allow developers to quickly get an understanding what the services and devices do and how they work. However, the generated user interfaces are far from real-world practices of designers and end users. We present an approach to overcome this gap, by using a model-driven methodology resulting in state-of-the-art responsive Web user interfaces. To this end, we use the Interaction Flow Modeling Language (IFML) as intermediary model specification to bring together APIs and frontends. Our implementation is based on open standards like Web Components and SVG. A screencast of our tool is available at https://youtu.be/KFOPmPShak4
The Exploitation of OpenAPI Documents for the Generation of Web Frontends from IstvanKoren
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The BBC micro:bit - discover your inner maker! /slideshow/the-bbc-microbit-discover-your-inner-maker/66256746 ectel2016-sigwell-microbits-koren-160921124411
Presenting our BBC micro:bits at the SIG-WELL workshop at the EC-TEL 2016 conference in Lyon, France.]]>

Presenting our BBC micro:bits at the SIG-WELL workshop at the EC-TEL 2016 conference in Lyon, France.]]>
Wed, 21 Sep 2016 12:44:11 GMT /slideshow/the-bbc-microbit-discover-your-inner-maker/66256746 IstvanKoren@slideshare.net(IstvanKoren) The BBC micro:bit - discover your inner maker! IstvanKoren Presenting our BBC micro:bits at the SIG-WELL workshop at the EC-TEL 2016 conference in Lyon, France. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/ectel2016-sigwell-microbits-koren-160921124411-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Presenting our BBC micro:bits at the SIG-WELL workshop at the EC-TEL 2016 conference in Lyon, France.
The BBC micro:bit - discover your inner maker! from IstvanKoren
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DevOps Gamification Workshop at JTEL Summer School 2015 /slideshow/devops-gamification-workshop-at-jtel-summer-school-2015/51341690 devopsgamificationworkshop-150806105240-lva1-app6892
Workshop delivered at the 11th Joint European Summer School on Technology Enhanced Learning (JTEL 2015), July 4 - 11, 2015, in Ischia, Italy.]]>

Workshop delivered at the 11th Joint European Summer School on Technology Enhanced Learning (JTEL 2015), July 4 - 11, 2015, in Ischia, Italy.]]>
Thu, 06 Aug 2015 10:52:40 GMT /slideshow/devops-gamification-workshop-at-jtel-summer-school-2015/51341690 IstvanKoren@slideshare.net(IstvanKoren) DevOps Gamification Workshop at JTEL Summer School 2015 IstvanKoren Workshop delivered at the 11th Joint European Summer School on Technology Enhanced Learning (JTEL 2015), July 4 - 11, 2015, in Ischia, Italy. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/devopsgamificationworkshop-150806105240-lva1-app6892-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Workshop delivered at the 11th Joint European Summer School on Technology Enhanced Learning (JTEL 2015), July 4 - 11, 2015, in Ischia, Italy.
DevOps Gamification Workshop at JTEL Summer School 2015 from IstvanKoren
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Smart Ambient Learning with Physical Artifacts Using Wearable Technologies - iLRN 2015 in Prague on 2015-07-13 /slideshow/smart-ambient-learning-with-physical-artifacts-using-wearable-technologies-ilrn-2015-in-prague-on-20150713/50503161 ilrn2015learningwithphysicalartifacts-150714100029-lva1-app6891
Presentation we gave at iLRN 2015 conference in Prague on July 13th, 2015 together with my colleague Ralf Klamma. We present our initial work about a construction exhibition and advertise Open Standards, Open Documentation and Open Source!]]>

Presentation we gave at iLRN 2015 conference in Prague on July 13th, 2015 together with my colleague Ralf Klamma. We present our initial work about a construction exhibition and advertise Open Standards, Open Documentation and Open Source!]]>
Tue, 14 Jul 2015 10:00:29 GMT /slideshow/smart-ambient-learning-with-physical-artifacts-using-wearable-technologies-ilrn-2015-in-prague-on-20150713/50503161 IstvanKoren@slideshare.net(IstvanKoren) Smart Ambient Learning with Physical Artifacts Using Wearable Technologies - iLRN 2015 in Prague on 2015-07-13 IstvanKoren Presentation we gave at iLRN 2015 conference in Prague on July 13th, 2015 together with my colleague Ralf Klamma. We present our initial work about a construction exhibition and advertise Open Standards, Open Documentation and Open Source! <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/ilrn2015learningwithphysicalartifacts-150714100029-lva1-app6891-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Presentation we gave at iLRN 2015 conference in Prague on July 13th, 2015 together with my colleague Ralf Klamma. We present our initial work about a construction exhibition and advertise Open Standards, Open Documentation and Open Source!
Smart Ambient Learning with Physical Artifacts Using Wearable Technologies - iLRN 2015 in Prague on 2015-07-13 from IstvanKoren
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Requirements Bazaar - Meet your Users on the Web /slideshow/requirements-bazaar-meet-your-users-on-the-web/48052370 layersboxagderrequirementsbazaar-150512144621-lva1-app6891
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Tue, 12 May 2015 14:46:21 GMT /slideshow/requirements-bazaar-meet-your-users-on-the-web/48052370 IstvanKoren@slideshare.net(IstvanKoren) Requirements Bazaar - Meet your Users on the Web IstvanKoren <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/layersboxagderrequirementsbazaar-150512144621-lva1-app6891-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Requirements Bazaar - Meet your Users on the Web from IstvanKoren
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Unpacking the Layers Box /IstvanKoren/unpacking-the-layers-box layersboxagderunboxing-150512144439-lva1-app6891
We gave this lightning talk about the Layers Box approach in Agder, Norway on May 12, 2015. It highlights the Layers Adapter that proxies requests to our microservice architecture in the backend, secured by OpenID Connect]]>

We gave this lightning talk about the Layers Box approach in Agder, Norway on May 12, 2015. It highlights the Layers Adapter that proxies requests to our microservice architecture in the backend, secured by OpenID Connect]]>
Tue, 12 May 2015 14:44:39 GMT /IstvanKoren/unpacking-the-layers-box IstvanKoren@slideshare.net(IstvanKoren) Unpacking the Layers Box IstvanKoren We gave this lightning talk about the Layers Box approach in Agder, Norway on May 12, 2015. It highlights the Layers Adapter that proxies requests to our microservice architecture in the backend, secured by OpenID Connect <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/layersboxagderunboxing-150512144439-lva1-app6891-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> We gave this lightning talk about the Layers Box approach in Agder, Norway on May 12, 2015. It highlights the Layers Adapter that proxies requests to our microservice architecture in the backend, secured by OpenID Connect
Unpacking the Layers Box from IstvanKoren
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Layers box agder docker /slideshow/layers-box-agder-docker/48052226 layersboxagderdocker-150512144356-lva1-app6891
We gave this lightning talk about Docker and DevOps in Agder, Norway on May 12, 2015. Both the DevOps culture and the Docker technology are an essential part of our Layers Box approach.]]>

We gave this lightning talk about Docker and DevOps in Agder, Norway on May 12, 2015. Both the DevOps culture and the Docker technology are an essential part of our Layers Box approach.]]>
Tue, 12 May 2015 14:43:56 GMT /slideshow/layers-box-agder-docker/48052226 IstvanKoren@slideshare.net(IstvanKoren) Layers box agder docker IstvanKoren We gave this lightning talk about Docker and DevOps in Agder, Norway on May 12, 2015. Both the DevOps culture and the Docker technology are an essential part of our Layers Box approach. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/layersboxagderdocker-150512144356-lva1-app6891-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> We gave this lightning talk about Docker and DevOps in Agder, Norway on May 12, 2015. Both the DevOps culture and the Docker technology are an essential part of our Layers Box approach.
Layers box agder docker from IstvanKoren
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Requirements Bazaar powered by AngularJS and Polymer - Talk at Google Developer Group Brussels /slideshow/requirements-bazaar/47323971 2015-150423044157-conversion-gate02
In this talk that we gave on April 21st, 2015 at the GDG Brussels, we presented the Requirements Bazaar with a special focus on its front end that is built with AngularJS and Polymer. http://www.requirements-bazaar.org]]>

In this talk that we gave on April 21st, 2015 at the GDG Brussels, we presented the Requirements Bazaar with a special focus on its front end that is built with AngularJS and Polymer. http://www.requirements-bazaar.org]]>
Thu, 23 Apr 2015 04:41:57 GMT /slideshow/requirements-bazaar/47323971 IstvanKoren@slideshare.net(IstvanKoren) Requirements Bazaar powered by AngularJS and Polymer - Talk at Google Developer Group Brussels IstvanKoren In this talk that we gave on April 21st, 2015 at the GDG Brussels, we presented the Requirements Bazaar with a special focus on its front end that is built with AngularJS and Polymer. http://www.requirements-bazaar.org <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/2015-150423044157-conversion-gate02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> In this talk that we gave on April 21st, 2015 at the GDG Brussels, we presented the Requirements Bazaar with a special focus on its front end that is built with AngularJS and Polymer. http://www.requirements-bazaar.org
Requirements Bazaar powered by AngularJS and Polymer - Talk at Google Developer Group Brussels from IstvanKoren
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Requirements Bazaar FOSDEM 2015 Lightning Talk /slideshow/requirements-bazaar-fosdem-2015-lightning-talk/44107050 awgs-2014-064fosdem2015reqbaz-150131091110-conversion-gate01
In this Lightning Talk we want to present “Requirements Bazaar 2.0” that aims to be a social continuous innovation platform to bring developers and end-users together. In years of research we have developed and actually operated an open innovation platform for gathering requirements for prototypes in large international academic projects. The last version of the current product is available under http://requirements-bazaar.org . End-users can enter their requirements by providing short descriptions including user stories, screenshots and other images. The requirements can then be shared amongst its users. On the other side of the chain, developers may take up ideas and transfer the accepted requirements to an issue system like JIRA. Over the last years it turned out that people want more lightweight and mobile-friendly tools; we found the old monolithic system to be very hard to maintain to add new features. Therefore we are currently redeveloping it from scratch integrating many ideas from our users and incorporating new research findings. We are further driven by a mobile-first approach to support a wide variety of devices. We additionally want to support various social features like sharing on social networks or blogs and allowing discussions and rating amongst end-users and developers. At FOSDEM we would like to encourage open source developers in rethinking the way requirements are currently gathered from the crowd. How do we want to collect new software ideas or simply feature requests from our users. Will it really be through feedback forms in our apps’ “About” menu? Do our users really think in terms of issues like we developers do? How can gamification be used to reward actual end-users of software? We hope Requirements Bazaar can answer these questions and fill the gap!]]>

In this Lightning Talk we want to present “Requirements Bazaar 2.0” that aims to be a social continuous innovation platform to bring developers and end-users together. In years of research we have developed and actually operated an open innovation platform for gathering requirements for prototypes in large international academic projects. The last version of the current product is available under http://requirements-bazaar.org . End-users can enter their requirements by providing short descriptions including user stories, screenshots and other images. The requirements can then be shared amongst its users. On the other side of the chain, developers may take up ideas and transfer the accepted requirements to an issue system like JIRA. Over the last years it turned out that people want more lightweight and mobile-friendly tools; we found the old monolithic system to be very hard to maintain to add new features. Therefore we are currently redeveloping it from scratch integrating many ideas from our users and incorporating new research findings. We are further driven by a mobile-first approach to support a wide variety of devices. We additionally want to support various social features like sharing on social networks or blogs and allowing discussions and rating amongst end-users and developers. At FOSDEM we would like to encourage open source developers in rethinking the way requirements are currently gathered from the crowd. How do we want to collect new software ideas or simply feature requests from our users. Will it really be through feedback forms in our apps’ “About” menu? Do our users really think in terms of issues like we developers do? How can gamification be used to reward actual end-users of software? We hope Requirements Bazaar can answer these questions and fill the gap!]]>
Sat, 31 Jan 2015 09:11:09 GMT /slideshow/requirements-bazaar-fosdem-2015-lightning-talk/44107050 IstvanKoren@slideshare.net(IstvanKoren) Requirements Bazaar FOSDEM 2015 Lightning Talk IstvanKoren In this Lightning Talk we want to present “Requirements Bazaar 2.0” that aims to be a social continuous innovation platform to bring developers and end-users together. In years of research we have developed and actually operated an open innovation platform for gathering requirements for prototypes in large international academic projects. The last version of the current product is available under http://requirements-bazaar.org . End-users can enter their requirements by providing short descriptions including user stories, screenshots and other images. The requirements can then be shared amongst its users. On the other side of the chain, developers may take up ideas and transfer the accepted requirements to an issue system like JIRA. Over the last years it turned out that people want more lightweight and mobile-friendly tools; we found the old monolithic system to be very hard to maintain to add new features. Therefore we are currently redeveloping it from scratch integrating many ideas from our users and incorporating new research findings. We are further driven by a mobile-first approach to support a wide variety of devices. We additionally want to support various social features like sharing on social networks or blogs and allowing discussions and rating amongst end-users and developers. At FOSDEM we would like to encourage open source developers in rethinking the way requirements are currently gathered from the crowd. How do we want to collect new software ideas or simply feature requests from our users. Will it really be through feedback forms in our apps’ “About” menu? Do our users really think in terms of issues like we developers do? How can gamification be used to reward actual end-users of software? We hope Requirements Bazaar can answer these questions and fill the gap! <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/awgs-2014-064fosdem2015reqbaz-150131091110-conversion-gate01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> In this Lightning Talk we want to present “Requirements Bazaar 2.0” that aims to be a social continuous innovation platform to bring developers and end-users together. In years of research we have developed and actually operated an open innovation platform for gathering requirements for prototypes in large international academic projects. The last version of the current product is available under http://requirements-bazaar.org . End-users can enter their requirements by providing short descriptions including user stories, screenshots and other images. The requirements can then be shared amongst its users. On the other side of the chain, developers may take up ideas and transfer the accepted requirements to an issue system like JIRA. Over the last years it turned out that people want more lightweight and mobile-friendly tools; we found the old monolithic system to be very hard to maintain to add new features. Therefore we are currently redeveloping it from scratch integrating many ideas from our users and incorporating new research findings. We are further driven by a mobile-first approach to support a wide variety of devices. We additionally want to support various social features like sharing on social networks or blogs and allowing discussions and rating amongst end-users and developers. At FOSDEM we would like to encourage open source developers in rethinking the way requirements are currently gathered from the crowd. How do we want to collect new software ideas or simply feature requests from our users. Will it really be through feedback forms in our apps’ “About” menu? Do our users really think in terms of issues like we developers do? How can gamification be used to reward actual end-users of software? We hope Requirements Bazaar can answer these questions and fill the gap!
Requirements Bazaar FOSDEM 2015 Lightning Talk from IstvanKoren
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DireWolf Goes Pack Hunting: A Peer-to-Peer Approach for Secure Low Latency Widget Distribution Using WebRTC /slideshow/korendire-wolfdruck/36624508 koren-140704045036-phpapp01
Widget-based Web applications are outperforming monolithic Web applications in terms of distribution of the user interface on many devices and many standard browsers. However, latency of the remote inter-widget communication may be an obstacle for the uptake of Widget-based Web applications in near real-time domains like Web gaming and augmented reality. In this demo paper we show DireWolf 2.0 which is replacing the XMPP server of the DireWolf approach by a client-side relay realized by the means of WebRTC. This is not only decreasing the latency of the distributed interface for any application but also increasing the security by avoiding man-in-the-middle attacks on the XMPP server. This progress is enabling further uptake in Widget-based solutions in advanced Web engineering.]]>

Widget-based Web applications are outperforming monolithic Web applications in terms of distribution of the user interface on many devices and many standard browsers. However, latency of the remote inter-widget communication may be an obstacle for the uptake of Widget-based Web applications in near real-time domains like Web gaming and augmented reality. In this demo paper we show DireWolf 2.0 which is replacing the XMPP server of the DireWolf approach by a client-side relay realized by the means of WebRTC. This is not only decreasing the latency of the distributed interface for any application but also increasing the security by avoiding man-in-the-middle attacks on the XMPP server. This progress is enabling further uptake in Widget-based solutions in advanced Web engineering.]]>
Fri, 04 Jul 2014 04:50:36 GMT /slideshow/korendire-wolfdruck/36624508 IstvanKoren@slideshare.net(IstvanKoren) DireWolf Goes Pack Hunting: A Peer-to-Peer Approach for Secure Low Latency Widget Distribution Using WebRTC IstvanKoren Widget-based Web applications are outperforming monolithic Web applications in terms of distribution of the user interface on many devices and many standard browsers. However, latency of the remote inter-widget communication may be an obstacle for the uptake of Widget-based Web applications in near real-time domains like Web gaming and augmented reality. In this demo paper we show DireWolf 2.0 which is replacing the XMPP server of the DireWolf approach by a client-side relay realized by the means of WebRTC. This is not only decreasing the latency of the distributed interface for any application but also increasing the security by avoiding man-in-the-middle attacks on the XMPP server. This progress is enabling further uptake in Widget-based solutions in advanced Web engineering. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/koren-140704045036-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Widget-based Web applications are outperforming monolithic Web applications in terms of distribution of the user interface on many devices and many standard browsers. However, latency of the remote inter-widget communication may be an obstacle for the uptake of Widget-based Web applications in near real-time domains like Web gaming and augmented reality. In this demo paper we show DireWolf 2.0 which is replacing the XMPP server of the DireWolf approach by a client-side relay realized by the means of WebRTC. This is not only decreasing the latency of the distributed interface for any application but also increasing the security by avoiding man-in-the-middle attacks on the XMPP server. This progress is enabling further uptake in Widget-based solutions in advanced Web engineering.
DireWolf Goes Pack Hunting: A Peer-to-Peer Approach for Secure Low Latency Widget Distribution Using WebRTC from IstvanKoren
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Shared Editing on the Web: A Classification of Developer Support Frameworks /slideshow/shared-editing-on-the-web-a-classification-of-developer-support-frameworks/27608600 2013-131027013700-phpapp02
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Sun, 27 Oct 2013 01:37:00 GMT /slideshow/shared-editing-on-the-web-a-classification-of-developer-support-frameworks/27608600 IstvanKoren@slideshare.net(IstvanKoren) Shared Editing on the Web: A Classification of Developer Support Frameworks IstvanKoren <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/2013-131027013700-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Shared Editing on the Web: A Classification of Developer Support Frameworks from IstvanKoren
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Informatik-Kolloquium XMPP /slideshow/informatikkolloquium-xmpp/24339376 studentposter-130717092621-phpapp02
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Wed, 17 Jul 2013 09:26:21 GMT /slideshow/informatikkolloquium-xmpp/24339376 IstvanKoren@slideshare.net(IstvanKoren) Informatik-Kolloquium XMPP IstvanKoren <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/studentposter-130717092621-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Informatik-Kolloquium XMPP from IstvanKoren
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https://cdn.slidesharecdn.com/profile-photo-IstvanKoren-48x48.jpg?cb=1730376173 www.istvank.eu https://cdn.slidesharecdn.com/ss_thumbnails/a-link-generator-for-increasing-the-utility-of-openapi-to-graphql-translations-200422074035-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/a-link-generator-for-increasing-the-utility-of-openapi-to-graphql-translations/232407563 A Link Generator for I... https://cdn.slidesharecdn.com/ss_thumbnails/immersivecommunityanalyticsforwearableenhancedlearninghcii2019-191105144849-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/immersive-community-analytics-for-wearable-enhanced-learning-hci-international-2019/190714031 Immersive Community An... https://cdn.slidesharecdn.com/ss_thumbnails/augmented-reality-lernkontexte-eine-europaeische-perspektive-181005063941-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/augmented-reality-lernkontexte-eine-europische-perspektive/118265662 Augmented Reality Lern...