I know I can test if set1 is a subset of set2 with: {'a','b','c'} <= {'a','b','c','d','e'} # True But the following is also True: {'a','a','b','c'} <= {'a','b','c','d','e'} # True How d...

I have a question about indicating multiplicity in an UML diagram. I have a SpriteObject class, which has a list of animations. The SpriteObject can have 0..* animations. All animations are create...

Just want to know how can we differentiate the multiplicities 0..* and 1..*. For example: --------- --------- | |0..* 0..*| | |CLASS |-----------| STUDENT | | | | | --------- --------- For t...

I wonder if there is way to create an array of objects in UML? the following is my try using Modelio as a modeling environment but as you can see there is different objects(i.e. instance[0],insta...

2019 Update / TLDR; switch to Entity Framework Core (or whatever else) While missing some "Features", EF Core properly honors Alternate Keys (aka Unique Constraints) in addition to Primary Keys an...

I was wondering whether Neo4j and OrientDB provide the possibility of defining constraints in terms of multiplicity for specific edge types?

I am studying Database Development and I am at the stage where I have to create my own ER Models. Everything is fine so far with StarUML however the course notes don't mention how to add muliplicit...

In aggregation, does the diamond shape side have a multiplicity of 1 maximum, or can it be 0..* ? Or is it depending of a point of view ?

Script needed was #!/bin/bash # Check if there are two arguments if [ $# -eq 2 ]; then # Check if the input file actually exists. if ! [[ -f "$1" ]]; then echo "The input file $1 does not exis...

I am only able to use connectors in enterprise architect with traditional 0..* style multiplicity rather than crow's feet connectors. I've tried using different drawing styles and still cannot work...