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0answers
62 views

Design of a datamodel in a OO way

I'm looking for some advice how to design a datamodel in OO way (C++ in special). My problem: The user input in runtime is a 1D matrix A = (a0,...,an). The program creates - on the basis of A - ...
5
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2answers
99 views

In an MVC, should models use libraries, or should libraries use models?

When I build a RESTful API, I use an MVC pattern. And in order to make controllers skinny and code reusable outside of the API (e.g. in Cron tasks), I put much of my code into services (commonly known ...
3
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0answers
138 views

Lightweight data modeling vs traditional classes [closed]

I've heard a lot of talk about using lightweight data modeling as of late. Especially in relation to the Clojure programming language. What is it and how it differs from traditional classes regarding ...
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vote
1answer
187 views

Data model for persisting queries to database

I have been asked to build what is essentially a query builder for a reporting application. The variety of objects to query, potential modifiers, number of conditions, and so forth to be reported on ...
1
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0answers
67 views

What's the canonical way to store translations of user data?

I've developed some software that allows my users to attach a blurb to some non-language specific information: Pseudocode model: item(): ID creationdate byline //Only one byline for the object ...
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6answers
819 views

How to data model more than one 'last name'?

In spanish speaking countries we use more than one last name, like: First name ↘                           ↙ Last name   ...
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0answers
41 views

modelling data / UI models in relation with the Data Layer

I have a user interface in Asp.Net MVC, which would for example need to load a list of products to show. Let us assume this calls ProductRepository.GetProducts() . In the data layer, I have a class ...
2
votes
1answer
322 views

Data Model for selling groups of products as one product

Say I have an e-commerce with a data model like the following, which allows a Sale to describe how a single Product is sold. This division allows a product to be sold multiple times in different ways ...
0
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1answer
120 views

Relationships in a Chen ERD

I am working on a Chen ERD to model our organizations merchandise. Our central entity is a Style. We have supplemental entities of Color and Season. I am defining our assortment as the ...
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4answers
358 views

How would you model an objects representing different phases of an entity life cycle?

I believe the scenario is common mostly in business workflows - for example: loan management the process starts with a loan application, then there's the loan offer, the 'live' loan, and maybe also ...
3
votes
1answer
136 views

Algorithm/Strategy or Data structure to capture priorities sub priorities in an app

I am working on a CMS that is starting to evolve a bit. We started off with content that had the following priorities ( columnn in the db on the content table): HIGH MED LOW. Data was fetched by ...
3
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2answers
142 views

What's a good format for documenting hundreds of data feeds?

Several governments are starting to publish open data: datasets generated by the goverment, made freely available for citizens to use for value-added app development, analysis, and feedback. For ...
1
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5answers
1k views

Is it Considered Good SQL practice to use GUID to link multiple tables to same Id field?

I want to link several tables to a many-to-many(m2m) table. One table would be called location and this table would always be on one side of the m2m table. But I will have a list of several tables ...
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3answers
726 views

How to show or direct a business analyst to do data modelling? [closed]

Our business analysts pushed hard to collect data through a spreadsheet. I am the programmer responsible for importing that data. Usually when they push hard for something like this, I never know ...