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Questions tagged [modelling]

The tag has no usage guidance.

0
votes
1answer
202 views

How deep should we explore domain (subdomain, bounded context) in Domain Driven Design?

I am curious about your approaches/heuristics to the exploration of domain (subdomain, bounded context) during DDD modeling session. As everyone knows most of programmers tend to be perfectionists (...
1
vote
3answers
152 views

Progressive Enhancement as a language feature

Progressive enhancement usually refers to web content, and the idea of having a page that is readable before it's fully functional. I'm suddenly preoccupied with the idea that I can't progressively ...
3
votes
2answers
636 views

What are the actors in a backend server use case?

Lets say we have a backend server maybe a database or whatever. When generating the use cases for that server who would be considered as the actor? System(front-end) or the user(user interacts only ...
26
votes
8answers
1k views

Is there a programming paradigm that promotes making dependencies extremely obvious to other programmers?

I work in a Data Warehouse that sources multiple systems via many streams and layers with maze-like dependencies linking various artifacts. Pretty much every day I run into situations like this: I run ...
6
votes
3answers
157 views

If I have a case with 2 subcases should I use 1 or 2 Use Cases?

Let's say I have this example. There is a chef (actor) and a Use Case cook food. If there are 2 food options to cook (lets say pasta and pizza). Should I create 1 Use Case : CookFood and then in ...
0
votes
1answer
68 views

Do context diagrams have cardinalities?

Can someone explain if the context diagrams(as used in requirements engineering) have cardinalities(as defined in UML diagrams)? What I want to ask is, are cardinalities part of a context diagram's ...
3
votes
1answer
85 views

Building 3D from 2D

If you have an image sheet of facets and data to indicate which point on each facet should connect with other points on the other facets, is it possible to position those facets in 3D space based on ...
6
votes
2answers
368 views

Junction table related to another junction table

I'm defining a DB structure, and I have a strong feeling I'm not doing it right. I have hotels that can be configured to offer some optional services (airport pickup, massage), that can in turn be ...
3
votes
3answers
157 views

Modelling highly specific business requirements

How can one go about modelling highly specific business requirements, which have no precedent in the system? Take for example the following requirement: When a purchase order contains N lines, is ...
3
votes
1answer
119 views

In a declarative language, specifically in the context of modelling, can we make a clear distinction between code and data?

For declarative languages, specifically (but not limited to) in the field of modelling, it's not obvious to me whether code can be considered to be separate from data. This line of reasoning may only ...
0
votes
1answer
497 views

How to model optional use cases in UML

Let's say, I want to model an application which allows users to model class diagrams. The high level use case can be modelled as UC1:Model Class Diagram, which refines itself into UC11: Model Class, ...
0
votes
1answer
194 views

Extending Composite Structure model generally/in Enterprise Architect

I'm currently on a project, which integrates domain specific techniques in the modelling tool Enterprise Architect through UML Profiles. The domain specfic model almost matches the structure of the ...
12
votes
2answers
1k views

FP for simulation and modelling

I'm about to start a simulation/modelling project. I already know that OOP is used for this kind of projects. However, studying Haskell made me consider using the FP paradigm for modelling a system of ...
0
votes
2answers
497 views

Object Oriented programming and modelling [closed]

I am taking a course in OOA/D this semester. I have some doubts about Object Oriented Programming. Is it true that Object Oriented programming can be done without any specific modelling like OMT? ...
9
votes
7answers
1k views

How do professional software development teams deal with design complexity in non-trivial projects?

First, I realize this question may by somewhat long and vague and I apologize for this. This is probably a basic problem with a short name to anybody who's "got it", but as I find myself lacking in ...
4
votes
3answers
394 views

Rule of thumb for field sizes

What VARCHAR sizes should be used for first and last names, phone numbers (preferably international), email adresses, urls, dictionary words and file names? Edit: Zapped the introductory phrase to ...
6
votes
5answers
11k views

How to Model a simple file-system by UML class diagram

I want to model a file system which contains both files and directories, and directories can contain either files or other directories. This is what I have reached so far: In OOSE book, however, a ...
2
votes
3answers
334 views

What implementation do you use when dealing with operators in .Net?

My question is in a sense a follow up of this post on Time Series in .Net. Ideally, you would like to expand the basic TimeSeries<T> class by something like NumericTimeSeries<T>, where ...
2
votes
4answers
284 views

how to create a data model for the following problem

How to tackle 2-D and 3-D space in data ? lets say you are working on a power grid problem. You need to represent Towers; transmission lines; transformers and every thing else in a 2-D space. How ...