The 'life cycle' of a part object is so important key to explain the difference between aggregation and composition. A lot of tutorials just don't mention this. Thanks for making this tutorial.
Unary Associations and Attributes are the same thing. And I hit Like! Really so many times I've seen people saying similar things without telling the exact difference or mentioning that they are same thing with different approaches. Thanks for Saying it straight forward, it isn't hard to say something that it is.
Thank you for the beautiful lesson, Margret. Everything relevant, and no weak filler! We have to dig through a lot of dirt to get to the gold-thank you for being the gold! :D
Awesome video tutorial ! you have some unique talent, I generally dont add comments but this video was just too good, Simple videos are so difficult to make !
In the house example, is it wrong to say that Mortgage is a composition with House? Can mortgage exist without a house? Or is it that we don't put composition when working with multiplicity?
Very useful and helpful thank you! But could the Mortgage class also be composite to the House Class because without the House Class there would never be a mortgage ?
Hi Margret, regarding the last example, can you explain why there exists a Binary relationship between House and Mortgage? Shouldn't that be a directed line pointing from House to Mortgage?
The idea here is that the house knows about the mortgage, and the mortgage knows about the house. (A mortgage document includes not only information about the mortgage rate, etc. but also the address of the house.)
Great video.. I see that aggregation and composition differ from association, but it's a little abstract in that I can't see how it changes the ultimate implementation when you're making the distinction between association and aggregation where both have a minimum of 0, max of 1. (Mortgage vs Mailbox) - e.g I think I'd implement them both similarly just going off the diagram, so why bother make the distinction? Bit of a rhetorical question to myself that I will answer eventually :)
Are you positive that the only difference between Aggregation and Composition is lifetime of part dependant on lifetime of a whole? How about following difference: In aggregation a part can be part of many different wholes. In composition a part is exclusivly of one whole. Is this statement false or you just forgot to mention that?
No, every mailbox knows which house it is serving. The name of the owner or the house number is usually written on the mailbox. On the other hand, in a building with 10 apartments, you have 10 mailboxes and each one has the number of the apartment is is associated to.
The 'life cycle' of a part object is so important key to explain the difference between aggregation and composition. A lot of tutorials just don't mention this. Thanks for making this tutorial.
That example sums up everything I had been trying to understand since last 2 years XD
Super thanks for the video.
Simple, clear, and direct...2 semesters of confusion cleared in
Learned more in 9 minutes than from reading 90 pages of my boring UML textbook. Thank you.
same here
Short, to the point, accurate and clear - one of the best short tutorials that I've seen. Thank you
the first video which explain those stuff in a good manner
One semester illustrated nicely in 10 minutes. That was greatly explained. Thank you.
The house example in the end of video is awesome!! easy to understand different associations and the multiplicity!! Thanks a lot!!
Unary Associations and Attributes are the same thing. And I hit Like! Really so many times I've seen people saying similar things without telling the exact difference or mentioning that they are same thing with different approaches. Thanks for Saying it straight forward, it isn't hard to say something that it is.
Really very easy explanation with real life examples!
It would be great if you organise playlists. thank-you so much!
Thank you for such a great video like this! Your explanations are straightforward and easy to understand. Thumbs up!
Thank you for the beautiful lesson, Margret. Everything relevant, and no weak filler! We have to dig through a lot of dirt to get to the gold-thank you for being the gold! :D
Thanks a lot, you are the first i found that explained this in a very easy way, thanks
Really good video, great explanations. Thanks
very good explanation..tomorrow is my ooad exam and watches this video give me a hope to pass the exam. thank you mam
The best I had seen out of the clutters. Thanks!
This was great. I didn't know that a unary association == the attribute(s) of a class. That cleared up a lot of confusion for me. Thank you
Your way of teaching is simply awesome..
Thank you so much for such a good video. I really was helpful. Look forward to more videos!
Such a great explanation. We need more teachers like you. Thank you very much.
Very well explained. Thank you.
You are the best teacher available. Can you please provide new videos on Mockito?
Awesome video tutorial ! you have some unique talent, I generally dont add comments but this video was just too good, Simple videos are so difficult to make !
this 9 minute video is way better than my teacher explaining the same thing for 2 hours.
finally a very crystal clear video.
In the house example, is it wrong to say that Mortgage is a composition with House? Can mortgage exist without a house? Or is it that we don't put composition when working with multiplicity?
Not exactly the level of difficulty I have wanted, but it is good that are videos where are presented more difficult concepts about class diagrams.
Simple and easy explained! Thank you!
This video was just perfect, really great explanation
Thank you so much. It is easy, simple, direct and clear.
VERY VERY EXPLAINED
just subbed looking forward to learn java from you
Best explanation I got for this topic by far, Thanks
I really liked the last example of the house, good explained
If I could like this video 1000 times, I would
Very useful and helpful thank you! But could the Mortgage class also be composite to the House Class because without the House Class there would never be a mortgage ?
Mortgage isn't part of the house so it cant be a whole part relationship (aggregation or composition). This is how I understood it.
This was so helpful and straight to the point. Thank you
Hi Margret, regarding the last example, can you explain why there exists a Binary relationship between House and Mortgage? Shouldn't that be a directed line pointing from House to Mortgage?
The idea here is that the house knows about the mortgage, and the mortgage knows about the house. (A mortgage document includes not only information about the mortgage rate, etc. but also the address of the house.)
@@margretposch4827 Thanks for the clarification. Great vid!
very nicely explained mam, keep it up 👌👌👌🙂🙂🙂🙂
This video is really helpful! Many thanks madam! Recomended for newbie!
thank you for the explanation, very helpful in understanding uml class diagrams
Your explanation is just wonderful!!!!Thank u mam......
well done lady. ive understood everything
Why are there no arrows in the last diagram to denote 'has a' Association ?
best tutorial about class diagrams
Thankyou for this video, really helped me understand the relationships in an uml :)
Pulvii vídeo por nos
Great video.. I see that aggregation and composition differ from association, but it's a little abstract in that I can't see how it changes the ultimate implementation when you're making the distinction between association and aggregation where both have a minimum of 0, max of 1. (Mortgage vs Mailbox) - e.g I think I'd implement them both similarly just going off the diagram, so why bother make the distinction? Bit of a rhetorical question to myself that I will answer eventually :)
Are you positive that the only difference between Aggregation and Composition is
lifetime of part dependant on lifetime of a whole?
How about following difference:
In aggregation a part can be part of many different wholes.
In composition a part is exclusivly of one whole.
Is this statement false or you just forgot to mention that?
very well explained. A beginner can take it easily. Thanks
Really very Simply you explained it 😍😍
This helped so much with Assignment 6! thanks :)
Explained very nicely. really useful. Thank you Margret
Very good introduction. I show it to my students
Very helpful and extremely well explained. Thank you very much!
Will be using this for your class.
Wow, mam u r awesome, hope study one day live with u
Very best explanation. Thank you
Perfect examples thanks my lady
you just made my day. thanks
Nice examples. Well presented. Thanks
very well explained. I am subscribing to your channel for this. Nice!
First time i see the attribute vs relationship role use explained properly
dang! You are so darn good and awesome!! Thank you very much Madame Posch!!
Hi, thank you so much, a very good explanation!
But may you give us your book references which related to your presentation?
Great video. Definitely helped with my understanding. Thanks
simply explained everything very nicely
Hi can you explain the binary association between the house and mortgage?
Thank you very much. Yes nice explanation.
if we have multi attributes then how we can show by unary association?. can any one help me?
Can we get the slide? Nice job!
Thanks.
simply explained..thank you very much..
Wonderful Explanation ThankYou Madem
a great explanation. simple and clear.. thank you.
i have a doubt unary association is entities of same type and binary association is entities of 2 different class
Thank you very clear explanations and I love your accent!!
explained with good examples.
What is the important questions of mcs 032? Tell me
Really your video is very helpful
its very helpful videos god bless you
Excellent explanation!!!
This makes everything so so clear, thank you!
Thank you for these examples they really help :)
Very nicely explained 👍
Awesome explanation! Thank you so much!
Really Great video.Thank you
THANKS. Great explanation!
Tnxxxxx, You Made It Simple Than Ever...
Great explanations. Thanks
wow amazing explanation
Could you make more videos to explain everything about UML?
thanks for this simple and wonderful explanation!
Very Well-ExplainedThank you
thanks alot ! its very easy to understand ! nice work :) :)
Great content! Thank you so much
Best Explanation
i like this explanation, cause easy to undestand
Pramanca Utama Manca
mam i have some question for university can u solve or give notes of object oriented analysis of design plz sir for exam plz help it is my reqest
THANK YOU!!!!!! This was perfect
perfect explanation...Thank you.
great explanation 👏
Shouldn't House and Mortgage have a Unary association rather than binary.
No, every mailbox knows which house it is serving. The name of the owner or the house number is usually written on the mailbox.
On the other hand, in a building with 10 apartments, you have 10 mailboxes and each one has the number of the apartment is is associated to.