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The last friday, I received my Lego Mindstorms NXT 2.0 – THANKS! Unfortunately, I lack the necessary power supply in form of 6AA batteries. Clearly, I went to my favorite retailer – Amazon – and ordered a couple of rechargeable ones (including the recharger). Since my mind is somehow attached to Prolog, I asked myself would it be possible to do the mind-storming in Prolog … so I fired up the information retrieval engine of the day … and hit: [English] New Mexico State University: Building and Programming Robots http://www.cs.nmsu.edu/~tson/classes/fall03-579/schedule.htm [German] University of Potsdam: Programmieren in Prolog http://www.cs.uni-potsdam.de/wv/03SS/aktuell.html#SECTION00051000000000000000 [German] Toni Gläser: LEGOLOG - Lego Mindstorms und ein Golog-Planer Eine Einführung und ein Überblick über das Konzept und die Programmierung sowie die Implementation von Aufgaben für den Roboter http://www.kbs.uni-hannover.de/~brase/...

What if we wanted to consume our previously built GCD Service by a web browser, such as Internet Explorer? ... Nothing easier than that. In fact, with minimal effort we can implement this functionality. Firstly, we have to (1) declare that our service supports the HTTPQuery operation, secondly we have to (2) implement a handler for this HTTPQuery request, and thirdly we may (3) test the service with a browser. 1. Just add the HTTPQuery port to the GCD service's port set, which is defined in GCDTypes.cs (assuming that your service is named GCD). [ServicePort()] public class GCDOperations : PortSet {} So now that we have declared that our service is capable of understanding a HttpQuery action, we need to implement a routine, which handles such HttpQuery requests - a HTTPQueryGCDHandler. 2. Add the following lines to the GCD.cs [ServiceHandler(ServiceHandlerBehavior.Concurrent)] public virtual IEnumerator HTTPQueryGCDHandler(HttpQuery httpQuery) { if (! string .IsNullOrEmpty(htt...

I was finally able to get the GCD service up and running. Essentially it does nothing different than my previously posted GCD service, which is implemented in VPL. So to recall, this service computes the greatest common divisor of two positive integer numbers (inputx, inputy) and outputs the result as greatestcommondivisor. Based on this description of what the service does, the remainder of this post will guide you through the process of how I built such a rather simple DSS service using the MRS object model and C# as implementation language (as mentioned you could also choose VB.NET, C++). This kind of tutorial is divided into distinct steps beginning at creating a new service project to the final result being the service we want. Create new DSS Service The first thing one has to do in order to set up a basic GreatestCommonDivisor service is to create a new DSS service.We will do so by creating a new Visual Studio 2005 Project. More specifically it is a "Simple DSS Service (1.5)...