modeling

After attending a talk on Oslo/M I am struggling a bit to see the advantages of using it over existing methods and in what situation it would be useful. I know its quite new and not all details have been released etc but can some one give me some advantages and when you might use it? Thanks, Alex Mindaugas Mozūras This questions seems to have the answer you're looking for: What is model driven development good for? Erik Wynne has a nice blog-post on this topic: Oslo == 42 He also links to a post on MSDN, that contains some interesting thoughts: Why do we need Oslo? I haven't played with the

Can anybody recommend a class library or a design pattern that models amounts of Money ? I guess it should support: multiple currencies a mechanism to indicate the number of decimals math (respecting certain rounding conventions (cfr ie. Banker's Rounding )) serialisation to and from a String representation ... ? I.e. 19.99 USD could be serialized into " USD-2-00000001999 " (Whereas 2 indicates the number of decimals) Pascal Thivent I would check the monetary module from the JScience project (by Jean Marie Dautelle). Depending on your exact needs, Stephen Colebourne started Joda-Money ( "a

What is the best practise for scaling 3d models in Three.js (or other 3d renderers)? Here is an example I just faced: I load a model in and realise the size of the model is too small. I then scale the mesh using mesh.scale.set(2,2,2); and it is perfect size. What action should I take in this scenario, do I leave it scaled like that (programatically scaled) or do I go back to my 3d modelling software and double the size of the model? Thanks It is not a matter of best practice but rather of optimization . If your mesh will always be scaled, it is better if you do the scaling in your modeling

I have an XMI 2.1 formatted SysML model, exported from Enterprise Architect. I'm evaluating Papyrus as an alternate model IDE. I'd like to import my XMI file into Papyrus, including all structural and behavioral blocks. Here's what I've tried: Create a new Papyrus project. Right-click on project, select Import, and browse to my XMI file. However, this just includes the XMI file in the Papyrus project. If I open it, I see the model elements as XML. Does Papyrus support importing XMI, and if so, how do I accomplish this? I worked through a similar problem recently, though with UML, so your

I'd be interested in getting the opinion from users of GAMS and AMPL on what the strength and weaknesses of each these languages are. In terms of functionality they are pretty much the same allowing to express most types of optimization problems. Personally, I prefer AMPL because it has intuitive and expressive syntax and it is very well documented in the book . Another important advantage of AMPL is that despite the fact that it is commercial you can avoid the vendor lock-in because there is an open source alternative - GNU MathProg . GAMS on the other hand used to have a more advanced IDE