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Questions tagged [modeling]

Modeling is the constructing and manipulating abstract (mathematical and/or graphical) representations of economic, engineering, manufacturing, social, and other types of situations and natural phenomenon, simulated with the help of a computer system.

Modeling is the construction and manipulation of abstract (mathematical and/or graphical) representations of economic, engineering, manufacturing, social, and other types of situations and natural phenomenon, simulated with the help of a computer system.

2023 questions
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Scala - Domain object modeling

I'm currently trying to wrap my mind around Scala with an intention to use it for my next project that has to deal with DICOM. DICOM has quite broad specification that spans over thousands of pages of the standard. My understanding of DICOM is quite…
ak.
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Push/pull visualization in dataflow diagram

I'm trying to visualize a data flow in a diagram where data can flow in one or many directions. Some actors push the data to another actor in the diagram and other actors pull the data. From what I can find, there is no notation of it in uml but I…
Lundahl
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Modeling project woes

In our company we have started using VS 2010 to model our systems, in so called modeling projects. These are kept under TFS2010 source control. It's all good for a single user, but as soon as we introduced this tool to our entire architecture team…
havardhu
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what is uml stereotype and how to use it

I'm drawing a class UML for a JAVA software design. I don't really understand what is a stereotype. The formal definition: The stereotype is a profile class which defines how an existing metaclass may be extended as part of a profile. It enables the…
abcXYZ
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The best way to model the domain together with the domain expert

I have done a fair bit of analysis and have used a number of tools to capture requirements: user created storyboards, use cases, GUI drawings, GUI prototypes, User stories & scenarios that can be used as acceptance criteria etc. While each of these…
Dan
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How to use expansion regions for loops in an activity diagram?

I am having problems designing a proper UML activity diagram. I've seen similar questions and possible answers: How to present a loop in activity diagram? Even with these answers I am having doubts and my own answer doesn't correspond with the UML…
Jax Teller
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Best way to write a Proof of Concept (PoC) app?

I am currently working on a project with which I need to program up a bit of a proof of concept app. I have written PoC apps before but they have only been really small and haven't really had lots of layers where as the app I'm writing now has…
Nathan W
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Ridge regression in glmnet in R; Calculating VIF for different lambda values using glmnet package

I have a set of multicollinear variables and I'm trying to use ridge regression to tackle that. I am using the glmnet package in R with alpha = 0 (for ridge regression). library(glmnet) I have a sequence of lambda values, and I am choosing the…
srt
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Implementing "Fallback" Classes

I have a set of classes, each of which need to decide at some point which of two or three approaches they should use internally to implement the same functionality externally. Ideally, this should include fallback functionality, where if ApproachA…
user502255
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How to train Coverity for "suspicious sizeof" or SIZEOF_MISMATCH finding?

I have a template function with a specialization that performs zeroization: template void SecureWipeBuffer(T *buf, size_t n) { volatile T *p = buf+n; while (n--) *((volatile T*)(--p)) = 0; } ... template <> void…
jww
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Xtext 2.9 scope provider

Xtext 2.9 changed the way scope providers work and I don't understand how they work now. Let's say I have the following grammar: grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.common.Terminals generate myDsl…
J Burns
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What advantages does using Oslo and M have and when would you use it?

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…
alexmac
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Ontologies, OWL, Sparql: Modelling that "something is not there" and performance considerations

we want to model that "something is not there" as opposed to missing information, e.g. an explicit statement that "a patient did not get chemotherapy" or that "a patient does not have dyspnea" is different from missing information about whether a…
Wolfgang
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How to save/export a Spark ML Lib model to PMML?

I'd like to train a model using Spark ML Lib but then be able to export the model in a platform-agnostic format. Essentially I want to decouple how models are created and consumed. My reason for wanting this decoupling is so that I can deploy a…
trianta2
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From a 3D modeler to an iPhone app - what are best practices?

I am quite new in 3D programming on iPhone and I would like to ask for hints about organizing a work between designers and programmers on that platform. Most of all: what kind of tools, libraries or plugins cooperate the best on both…
Daniel Bauke
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