Class diagram & Business Analyst

What is Class diagram? and what is Business Analyst to do with a class diagram ?

Class diagram is type of structural diagram which show cases the entire system in different blocks of classes in a structural format. A class diagram will be mostly used in the UML (Unified Modelling Language).

 

Class diagram sample

Class diagram sample

So, A class diagram shows the structure of the system by representing a Systems Classes and its sub classes. In the above diagram, Checking account, savings account & Loans are classes. Home loan, Car loan are sub classes of ‘Loans’.

Normally these class diagrams are drawn in MS Visio where different shapes can be drawn with less effort. Other tools can also be used depending upon your company licensing.

Use case diagram Sample

Use case diagram definition:

A use case diagram is the pictorial representation of how a user interacts with the system. Use case diagram typically contains ‘Actors’ and ‘Events’. Actors are the entities who trigger the events. Event is a set of rules or a transaction that will occur by an actors action. Below is the sample use case diagram how it looks like.,

 

use case diagram sample

use case diagram sample