Questions tagged [relationships]
The relationships tag has no summary.
71 questions
11votes
13answers
5kviews
Does it ever make sense to have a one-to-one obligatory relationship in a relational database?
To illustrate what I mean, imagine a group of students and a group of professors in some kind of a traineeship. Every professor is to mentor one student and every student has to be mentored by one and ...
- 121
0votes
1answer
82views
if an entity depends on two other entities(that have a relationship between them) should I make the enitity depend on the relationship instead?
If I have three entities (end-user, country, tier) in my system that has relationships as follows: Where each country has its own tiers with specified points per year, and each end-user has a country ...
- 109
-1votes
1answer
86views
Designing a Distributed System for Indigenous Data Sovereignty Across Nations [closed]
I'm looking for some quick "back-of-the-napkin" thoughts from systems engineers on the following scenario: A collection of Indigenous groups (in the US, Canada, and Australia) want to design ...
2votes
4answers
464views
Many-to-many modeling for microservices
I have two microservices, say "students" and "courses", they represent separate entities that are managed separately by different teams. A given student can be enrolled in multiple ...
- 197
0votes
1answer
203views
Match making algorithm respecting players' choices
I am currently developing an application in Python that has a match making functionality to form sports teams of 4 and group them by skill. The following has been implemented and works. E.g. Form ...
-2votes
1answer
111views
UML relationships
Could someone explain to me if the relation in this class diagram is a "dependency" or "association" relationship and why? I cannot edit the picture. The terms translate into ...
0votes
1answer
501views
Architecture for storing generic data
(I am facing this issue with code written in Swift, but would appreciate any high-level pseudocode solution, just so that I may wrap my head around the architecture) I need to find an architecture ...
- 117
-2votes
1answer
69views
Assigning Relationships between various objects in a collection
Similarly to a sports team chemistry or even a better example would be fifa ultimate team chemistry where putting certain players in the team would improve the team's overall chemistry Say there are ...
1vote
0answers
713views
How to handle relationships between resources in Restful API
Problem Hi, we have an API that it's pretty similar to a standard CRM. That is, we have a really big amount of resources (even our own customers can define new resources). All of these resources share ...
5votes
3answers
230views
UML Composition parent association end
The Wikipedia article on the Composite Design Pattern includes the following diagram: As you see, there is an association relationship which is child 0..* – 1 parent (association). However, shouldn't ...
- 181
1vote
2answers
1kviews
determine correct relations in ERD - Customer Orders use case
The below ERD is taken from a professional architecture reference, however I have a concern in the relation between Customer and Invoice, I believe that relation between Customer to Order , and Order ...
2votes
3answers
284views
OOPS Relationship between Soccer Field and Soccer Player
I am trying to design a simple Soccer game. To keep things simple, I am having a SoccerField to represent the field and a Player class to represent an individual. A SoccerField will contain a list of ...
- 185
0votes
1answer
116views
Relationship problem between entities
I'm not sure how I should think regarding my database design. I have made this database schema below. And I'm trying to think about the relationship between the entities. I have read through online ...
user390016
2votes
1answer
119views
Best notation to store/read/compute complex relationships
I have created an application in which users and tasks can be entered. A task should be be assigned to one or more users. If more users can do a task, the task should be assigned in such a way that it ...
- 131
1vote
2answers
3kviews
Relationship between entities in different aggregates and size of aggregate
I read a lot about DDD but few thing are still unclear. At this moment I have two dilemma The size of aggregates. How small could be an aggregate? For example we have: class Car { String colorId ...
- 19
