Welcome to TechScreen

Welcome to the TechScreen site. This side shall support the exchange of knowledge in the domain of Web Engineering and related aspects. As a side effect, this side is used for research on knowledge management technologies. User can pose challenges in the problem domain and can participate in quizzes. Further a bibliography about arcticles in different related domains is continously extended. Finally, questionnaires on different issues are provided. To be able to participate you need an account and a password from TU Wien's TISS system.

Bug/Issue in elasticsearch

I use elasticsearch as part of my work and many times I encounter bugs and insufficient functionalities. How could I overcome these issues?

Mailprogram IncrediMail unfortionally migration to Windows 8 above

The Problem was during an automated windows upgrade from Windows7 to the higher version Windows8, my friend told me. After this update his e-mail programm Incredimail doesn't work again correctly. So he won’t be able to get his emails anymore. The first problem was to know about the program incredimail itself. How it interact with the new System and if its self supports the new OS, perhaps the company dosen't support the program anymore. IncrediMail was a famous email program at the beginning of Windows XP, cause with this program you could send emotions.

Web-Interface and transfer data over the server

The task was about defining an REST-Endpoint to transfer data over the Server, e.g. to an Client who ask for an request. It's a little bit difficult to know about the topic in the way you have to develop the web application in the end. My task was to solve them in the program language C#. The next thing to thought about is, the many littel problems who could occure during the development. There we have many divices who talk to each other and each divice has his pro and contra e.g. on a web server you had now way to talk to the clients local machines divices directly.

Entering a challenge in TechScreen leads to a failure

If a tag in freeTags and in Computer Science is entered the error message Parse error: syntax error, unexpected T_FUNCTION in /Library/WebServer/TechScreen/modules/rdf/vendor/arc/ARC2_Class.php on line 78 occurs

Entering a challenge in TechScreen leads to a failure

If a tag in freeTags and in Computer Science is entered

Storage of a Challenge in TechScreen

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Automated print from client, but the data still only available on the server?

The first problem I saw was the technique behind the screen. The way for the stored file at the server to the clients machine and print them automatically without interaction after user's click on the print button. The next problem primary one, the communication between the server and the client. Since I know from the specification, it should be an Web application at the end. One of the last part of the puzzle is to get knowledge about how to get all installed client printers, which user can choose for himself.

Nothing happens on UI on Android app if i use threads in Xamarin

Whenever i try to execute another task in my Android app on Xamarin the user interface does never change if I do any calls on that. I don't know why, but it seems that i am missing something. I am working in Visual Studio with Xamarin. So i think c# or java solutions would be possible!?

Multiply times the same output in visual studio console

Whenever i write some test messages to the console by using System.Diagnostics.Debug.Writeline("testmessage") I have the problem that the message is shown multiple times. I don't know why but maybe this happens because of the internal android console?!?? I am working with Xamarin in Visual Studio and develop an Android app.

Start code snippet in a new thread

The problem is that i want to write small code snippets exactly at a certain position in my code. This code snippets should be executed in a new thread and run in background. I am working with c# in Visual Studio. It is not needed to consider parallelism, that means that i don't need to do any locking of resources.

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