UML Diagrams - A Beginner's Guide

What an ER Diagram is and why it is needed?
ER stands for Entity-Relationship (ER) Diagram, It is also known as ERD. It is a visual representation of how tables (also known as entities) in a system are related to each other.One advantage of using ER Diagrams is that, it makes it easier for business folks to understand the data because it is presented in a graphical manner.In business analysis, ERD is a vital part of designing software systems. ERDs are mainly used by analysts in designing database, especially when handling complex data.

Activity diagram is one type of UML diagram which will help to document the list of activities involved in a use case or a scenario and their sequence.
In this video, we will cover how to draw an activity diagram using just 6 Key components listed below with an help of a simple case study:
- Swimlanes
- Start
- Activity
- Decision Box
- End
- Horizontal Bars

Learn how to draw a User Case Diagram using the 4 Key components. We will go over the components one by one.

0:00 Introduction
1:36 WHAT IS AN ER DIAGRAM?
2:42 COMPONENTS OF ER DIAGRAM
4:06 ENTITIES
4:53 ATTRIBUTES
6:44 RELATIONSHIP
8:30 Conclusion
15:46 COMPONENTS OF USE CASE DIAGRAM
18:32 CASE STUDY

[rajat]

My profound and deepest gratitude to the team, you guys are fantabulous, glad you are back, have a BA interview, it's unlikely that i will clear because practicing SQL will take time, having said that keeping my fingers crossed. Appreciate every bit of your effort you put in these videos, the sad part of things is your true efforts thru the videos don't get widely circulated, because people are so selfish to even share the knowledge. Thanks once again and god bless all the speakers

[vijetadalod]

Your videos help me alot for my new role as a BA, will highly recommend it to my colleagues in the same profession

[divyarajashekhar]

I am glad that you are posting again, thank you

[makedifference]

the perfect in every manner. really so helpful. Thanks alot guys.

[makedifference]

will you make tutorial on risk analysis ?

[ayishabako]

This is incredibly helpful thank you! 
If possible could you do a video surrounding documents a business analyst need to produce i.e BDD, how to write a business case etc.

[dhanyatajagtap]

could you please add sessions on change request ?

[skoko]

Can you make video's on Risk Analysis, Gap Analysis and Impact Analysis.

[agbobenjamin]

Great video thank you, from the ER diagram, Order Details table in 6:35, i notice there is 2 primary key not sure if that was an error

[naveendevu]

It is helpful for me, can you help me capital market domain with b.a. interview questions??

[playwithvihaan]

Thank you. Which document we should add these diagrams? BRD or FRD?