Basics of LLD | UML Diagram in detail | Association Vs Aggregation Vs Composition | VERY imp!! 

Dear Keerti, I just watched this video on LLD and UML, and I'm absolutely blown away! It was truly amazing! I must say your ability to simplify complex concepts and explain them with such clarity is impressive. Thanks to your captivating presentation style and visually appealing content, I was completely engaged from start to finish. Your enthusiasm is contagious, making the learning experience enjoyable and inspiring! Love you!

Bulb has a filament --> composition House has a bulb --> aggregation

Request :: Make a playlist of lld for a beginner from scratch. For a student who doesn't know anything about LLD so pls structure the playlist so that we can follow that one specific playlist bcz searching for LLD on RU-vid makes it very confusing cz there is no such specific dedicated playlist from scratch to interview ready

i have started going through your videos and the amount of effort you put into these videos is remarkable and we're glad we have creators like you.

Although nobody asked, but these tutorial videos on LLD are informative and helpful. You are putting so much effort into these videos, it is fine if you put paid promotions in the videos. You are already teaching for free and if someone doesn't want to see the ads then they can skip it.

This is such an awesome refresher of the key concepts, you make it so crisp and clear! Keeps one glued till the end. You're a natural teacher! Thanks so much for such great content, Keerti!🎉

That was crystal clear. I did't have to put in lot of effort to understand this. Thanks for this Video

16:05 She is from Bhopal in Black dress, for those who are also residents of Bhopal. Here she explains about Aggregation vs Composition

awesome video, literally complex concepts are explained with such great analogies and examples. Kudos

Well cooked explanation... Loves your's energy, attitude and euphoria when your teaching and It makes me listen in a happy way...💕💕💕

really really very informative video mam, i just 28 min u have covered a whole looot. Thank u so sooo much mam. You are teaching this topics far better than my professor. Love from Germany❤

Thank you so much for explaining this in such an easy manner. This was much better than 1 hour of college lecture.

Really admire your hardwork and honesty Keerti Have been following you from a long time I am glad i saw the notification of this video earlier. Now there is a very high chance that you will read my comment! 😂 Definitely gonna watch and learn from this. Thank you for putting in so much effort and giving back to the community. You are a true inspiration to all the women in tech. Best wishes! ❤ PS: this video comes at the perfect time when i was looking to deep dive into this topic This will also help new developers like me.

Have heard of these composition , aggregation , etc terms countless number of times . I just want to get rid of them today !

Thanks for the videos(not just this one all of your videos). Especially the examples that you gave were from real life and made sense. The video was clear and concise. I had just one about the hint that you gave which helps us decide between composition and aggregation, multiple instances of a class. So is it in simple terms if I have singleton class then it can't be a composition, did I get it right ?

Maam while explaining association , you have told that both the classes can call each other. Can you say exactly what do you mean when you say "both the classes can call each other" . I know that one function can call another function. But what how classes call each other ??

The last explanation was amazing. Like if a object is used in different classes. Then it is obvious that it is aggregation. Because like if it destroyed in one class then what about other class, they are using the same object. So there will be sort of inconsistency. On other hand if One class is handling the total life cycle of another object then It is Composition. Please if something I have understood wrong, please correct me then. Thank you very much in advance.

Wall watch has hands(sec, min, hour) ==> Composition Table has four legs ===> Composition A shoe has lace ==> Aggregation A room has Door ==> Aggregation

Now the confusing part, the example you gave body and eye...Suppose Eye is removed from a person still eye can be used to other and person has house both can be considered as unrelated class that can be association

Hi Keerti, I just stumbled onto your channel and I must say I am thoroughly impressed by the quality of your contents. Awesome awesome job. Long time hardware engineer and trying to expand my sw development knowledge. Looking forward to watching all of your contents on sw development. Best of luck!!

Such a nice refresher. Ended up using this as ref when I was asked to work on new system at work. Keep going 💪 Keerti!

keerti purswani has a yt channel --> Aggregation yt has a keerti purswani channel --> Composition

Thanks.. this is the new topic i learned today !! Very simple and clear explanation 👍👍

Thanks Keerti for the amazing explanation! :)

24:37 IS-A relationship for INHERITANCE

Very much beneficial❤🎉

Binge watched the whole video 😂 I am going in love with software engineering 💗

V.Good points mentioned to differentiate Aggregation and Composition.

Thanks for explaining these fundamentals clearly. 💯

At 26:55 'A' uses 'B' relationship should have a dotted line with an arrow instead of a triangle right? Because the triangle is for implements as is shown on the right

The music you kept at end is funny!:)

thankyou didi. you made the concepts very clear

very nice explanations

keertiii when you give any mock questions... can you please code them in c++ as well please ❤ thank you for existing and your hardwork ❤❤❤

Thanks for this video it clarifies a lot

A has an instance of B means class A has a member variable of type B in a similar way what do you means A uses B or B uses A.Thanks in advance and thanku for making us grow and learn.

Hi,can you make a video about logger design app in LLd and which design pattern is perfect? .really appreciate if you assist me

keep doing, you mean a lot to us !!!

Great video. I just loved it. You make it so easy to understand!!!

8:12 RBC

I have a doubt, the Customer can have Orders, we can say Customer Have Orders, the relationship is composite as Order cant exist without customer. So we can say Customer is like parent for order, but the order class can have customerId so now does that mean order has customer?

Thank you..

I watched this video at 0.4x speed to catch up with speed or rate of delivery of spoken words.

12:47 Should that be written as * .. * or as 0 .. * or as 1 .. * ?

Beautiful explanation.. Keep up the good job.

Person has a flight --- aggregation Flight has a seat --- composition

2:22 UML CD

Nice i am loving your video tutorial.

thanks maam

Thank you for this video.

Great Efforts .. Thanks👌

Hey Keerti Nice content I have a doubt... At the end of video, when u were explaining about interfaces with Association relationship, A uses B where both A and B are interfaces Then the representation should be like A - - - - -> B Isn't it? U used a triangular arrow insteaad of ">" symbol Please clarify on this

Very Helpful. Thanks a lot :)

1 sec earlier Mother has baby (Composition) baby is child of Mother (Inheritence) I was explaining this to my mom. Now I transitioned into Composition. Watching this from belly

I think there is a mistake at the end A uses interface B. I may be wrong. !! Please clarify I am not able to understand the difference between A implement B and A uses interface B from the diagram time : 27.04 . I think it should be like A ....> B. Is not it.

Thank you for the video, it very helpful :)

23:13 Quick recap

Thank you very helpful

Great Videos, thanks !

26:00 Coming or Not coming --- Question

Uses, is a , has a agg, has a comp

nice work didi :) , wish you best of luck

please make tutorial on microservices design patterns

Very well explained !

Thanks such a valuable content.

Thank you so much for amazing content always

I am confused, would you please mind clarifying the below relationships? Car & Tyre => Aggregation same way, If a Car has a Camera, then I can say, Car & Camera => Aggregation And we know that Car & Camera is analogous to Body & Eye. If so, why Car & Camera is Aggregation but Body & Eye is Composition ? 😵‍💫

Thanks for sharing

Voice echo present in recording which can be corrected by professional for just Rs 10k.

Excellent 👍

phone has operation system -> composition phone has sim card -> aggregation

One weird thing that i noticed is that views count of stretegy video is more than that of actual implemented video. People are coming just to see how to crack interview

What do you mean by A uses interface B ?

Desktop has a monitor --> aggregation Car has an engine --> aggregation?

very useful

Please make a whole playlist on LLD, they expect us to be experts in lld even with an year of experience😢

Bro! you are amazing.

Mind blown

7:10 List of body parts returned.

whats a great video

great

thank uuuuuuu ❤❤

no i havent thought static

19:02 that was dark

Crazy

I would say reduced or stop eating sugar and carbs in your diet. Burn as much calorie for next 4 weeks. You will look slim & fit again.

Husband --------- Wife (Aggre) Person ------- Aadhaar card (comp) 😂

i love u

Please get a better 🎤 😊

Dependency 😢

Can you take a good mic 🎙️ please, there's echo + high pitch who is annoying. Dear random people pls Take it as positive criticism I have no intention to hurt anyone.