Watch me being interviewed by her here- kzread.info/dash/bejne/aWF1l7Cgd9Wwobw.html And please don't forget to subscribe to her channel as well!! 😇😇❤️❤️

@dhruvratra992

3 жыл бұрын

I am just say that from Leetcode and geeks for geeks all questions are asked in interview that should be same or different. And how much questions are practice for Amazon and Microsoft interviews

Generating the certificate should be done by system automatically when the dose details is updated by agent for a user.The certificate should be uploaded in cloud (blob container) and the link should be saved as a property in User table

We need more LLD. Internet has a scarcity. Kudos.

@KeertiPurswani

2 жыл бұрын

Many coming up😇😇

@nammi895

2 жыл бұрын

@@KeertiPurswani Jaldiiiiiiiiiiii LLD videos is really low on youtube, even if you put a paid course we'll take it.

One of the best mock interview I have watched till now in any youtube video. Obviously Gaurav Sen is somewhat of a legend... but I think he sometimes rushes an interview but the way you guys approached the problem in a calm and soothing manner it was quite commendable. I rarely comment and like any video let alone subscribe a channel but you both surely deserve it. From breaking down the problem into smaller parts and then combining them making a complete application was brilliant.... it actually helped me in how to approach any LLD interview. Thank you for this hoping both of your channel will grow much more.

@KeertiPurswani

2 жыл бұрын

Thank you so much Rohit, your support means a lot to us! Hope you find rest of our content also helpful ❤️😇

Highly underrated video. Should be on top of LLD videos.

It's feel so good to see two female coder collaborating together. 😀🔥

@KeertiPurswani

3 жыл бұрын

Thank you Shalini ❤️ We loved collaborating 😇😇

Loved this series on SYstem Design Its helpful for any begineer to learn from

It's a very good problem statement. Notification feature is very important for this app which should have been discussed.

Thank you for breaking the stereotype in tech. You guys are amazing.

@KeertiPurswani

2 жыл бұрын

Thank you for your support and love❤️😇

Interviewee is looking like a very experienced person. It's like just an another class of LLD for students.

I am new to system design and following you both...Will follow your channel to gain more knowledge on this ...Thanks a lot 💙

I thought concurrency will be handled here. Since we have patients coming in and pool of agents available. As well as the system replenishes the doses of a certain vaccine but agents will choose from them ( lock and update ) . It's not mentioned if it's just for a single vaccine, there can be multiple vaccination drives being conducted at same place ( although more than one vaccine isn't administered at once).

Why she said user is an interface and added all the state variables? Interface has method signature only rt? Confused

hi keerti,ye bta do ki C++ me code likh skte hai?? I am not familiar to JAVA so please help me , I have not seen any one solving with help of C++(LLD)

If agent is going to invoke checkEligibility then why are we putting the function inside the system class? Can't we directly access it through agent class

awesome, you guys can also do critic video of your own interviews, so that we can get improvemnts as well , whatever has been done on interviews in aspect of lld, class interactions and @yogita sharma can you tell me the device you are using, and you guys can do review video of such device too, cause these products need good quality review video specially to creators

Appreciate the work you are doing.I really liked it.Keep doing.

@KeertiPurswani

2 жыл бұрын

Thank you so much Anita! Means a lot😇😇

this is some good stuff...great going keerti

@KeertiPurswani

3 жыл бұрын

Thank you Shubham. Means a lot 😇😇

@abhishekchauhan1203

2 жыл бұрын

@@KeertiPurswani we support you Keerthi

@KeertiPurswani

2 жыл бұрын

Thank you Abhishek😇😇

Patient class has only date of vaccination but how will we get information about which vaccine has been given to patient? Vaccination certificate should be generated once vaccination is done systematically.

It feels so proud to watch two female coder interaction. Nice video of design really helpful to understand the low level. Keep it up the good work.

Great Job

Check eligibility function should belong to agent class.When the agent get the user details by searching using Id or aadhar number,he can invoke checkEligibility (button) and it would return success or failure.Or else during the search of user details,it should show eligibility as a property only.

If third dose requirement comes in future, how we incorporate this req, in design? If we add third attribute "date3" it will violate the open/closed principle. Could you please suggest a solution.

@bharateshchivate

2 жыл бұрын

We need to create a separate class as Doses and add it's properties as quantity,interval,dosenumber.We need to establish relationship between vaccine class and doses class.

@sushantsingh5603

2 жыл бұрын

@@bharateshchivate Yes, I have designed something like this, but dose class should be storing VaccinationId, dateOfDose, centerWhereDoseUsed. Storing quantity,interval,dosenumber is not relevant to particular dose. But there might be a problem, Since there will be totalPopulation*x , number of Dose object in DB. where x = 2, current we only have max 2 dose for any vaccine.

Great video and thanks for sharing knowledge. Here in this design it is assumed that all vaccines have two doses only which is not true for all vaccines. There can be a new class Dose which takes in patient id, vaccine Id and date to keep track of all vaccine doses for all patients.

really amazing

A day before i saw your channel I was eagely look for the gujrati girl which can compatible with me as oer IT is concerned and I found you. It is my best luck. Thanks

Designing a distributed cron scheduler ...can u do a video on the same. Thanks keerthi

@KeertiPurswani

2 жыл бұрын

Noted Srikanth! Thank you😇😇

first viewer... Always like your videos before watching coz i know its gonna be good 👌😊

@KeertiPurswani

3 жыл бұрын

People like you are such blessing ❤️ Thank you 😇😇

why there no mapping between agent and vacine center, I guess its should be one to one mapping.

Yogita directly jumped into solution without taking requirements. And feels like she is telling interviewer(u) the requirements instead.

@KeertiPurswani

2 жыл бұрын

🤔🤔🤔🤔 I was the interviewer, I didn’t feel like that🤔🤔🤔🤔

Yogita nailed it!

Nice video. Isn’t it expected to think about using some design patterns ?

Thanks for uploading !!

@KeertiPurswani

3 жыл бұрын

Hope you like it! 😇

Please make a detailed video on how freshers can get international placements in US UK Canada Singapore etc specially for 2020batch freshers.

@allwell8570

3 жыл бұрын

+1

@KeertiPurswani

3 жыл бұрын

Yes boss 😇😇

It really motivates me after seeing your videos Keerti 😍😘😊

@KeertiPurswani

3 жыл бұрын

It really motivates me after seeing your comments Balaji. Thank you ❤️😇

@balajiv6805

3 жыл бұрын

@@KeertiPurswani Keerti will u make a video on LinkedIn plz

Why is patient inhereting the properties of user? To this i would assume it is needed so that the system knows if the patient is the agent he/she should be the first one to be administered with vaccine. Otherwise why we need it?

2 things in checkEligibility method 1. agent id is not required 2. return true/false reversed.(she wrote for one other)

@KeertiPurswani

2 жыл бұрын

Agent id could be used to see if he has permission but yeah, thank you!😇😇

Thank you very much 🏆⚙️

@KeertiPurswani

3 жыл бұрын

Thank you! 😇

you are great inspiration

@KeertiPurswani

3 жыл бұрын

Thank you Adil 🥺❤️😇

My Laptop screen gets cleaned whenever you say "Hi Guys" :D :p Great work BTW !

@KeertiPurswani

2 жыл бұрын

Hahaha, I also need cleaners like these! My laptop screen is always so dirty🤦🏻‍♀️🤭

The amount of content for LLD is very less. Need more of it especially in something other than JAVA.

Your video is awesome and you girls have done really great job! We have an assumption that different vaccine will have different number of doses and that's what we want to store in vaccine class but patient has dates only for 1st and 2nd dose. Please let me know if you think any correction can be done for that.

@ajaysingh-zo7hc

Жыл бұрын

Caught my attention too. Also, she decided User to be an interface and defined only properties in it. I believe interfaces are contracts ensuring certain behaviors. User should have been an abstract class.

Nice and very informative one 47:51

🔥🔥🔥🔥

🌠🙌

Hi guys! has a separate fan base :)

@KeertiPurswani

2 жыл бұрын

Haha, I followed the cliche but somehow it ended up being different 🤭

Isn't class diagram just the DB model? Classes make me think OOP, the term throws me off

I want to write a totally hands free system where I can design a system by talking to a computer.

I wonder how do LLD interviews work in a virtual environment where the candidate doesn't have a writing tool 🙃

@KeertiPurswani

2 жыл бұрын

We have sample video of that also. You can check the latest one I did with Gaurav Sen. He and I interviewed each other (sound is a bit messed up but it’s understandable)

Could you make video on design UPI?

@KeertiPurswani

2 жыл бұрын

That’s a good question, noted!! Thank you😇

Some design patterns could be used here- 1. Builder pattern - while creating object of patient class since there are many optional fields (specifically when we registering the patient for the first time and also when vaccine is not recommended), but object of this class won't be immutable. 2. Template pattern - while creating the certificate can have different format like for the first dose and the final one (consolidated one). 3. Observer pattern/ push based/ event based - when a patient is given the vaccine - updating the system and certificate generation would be done asynchronously. 4. Singleton pattern - Vaccination Center 5. Factory pattern - Factory for creating object of different types of user. 6. State Pattern - Managing the state of the vaccination center - Operating/Closed/Temporary Closed. 7. Null Object pattern - This could be used in the places where we are supposed to check the availability of any variable and take some action based on that instead of checking for "null" I think there could be another Dose class which has the reference to Vaccine class and Vaccine class should have a list of Doses. Date of vaccination in the patient class might be changed to a list

nice to see +1

@KeertiPurswani

2 жыл бұрын

Thank you!😇😇

Age kidar hey bhai ?

@KeertiPurswani

2 жыл бұрын

Sahi baat re baba, miss ho gya. Maafi dedo

I watch only your video to see hi guys 😂😂

@KeertiPurswani

2 жыл бұрын

Hahaha, I hope you watch rest of the video as well🤭🤭😇😇

@harshpatel1385

2 жыл бұрын

@@KeertiPurswani obviously watched. Your content is 🔥

Why not making content in Hindi 🥺🥺 there are Lots of people who really don't understand English this fast. Please try adding atleast subtitles in Hindi. 🥺🙏

I start learning lld and first thing I learnt was 5w during requirements gathering and Yogita ma'am start with that only.... Now got idea why it's important.. Thanks for doing such great problem Statement that give us broader idea.

@KeertiPurswani

3 жыл бұрын

She is really good at this ❤️😇

@freshcontent3729

3 жыл бұрын

what is 5w?

@ankitraj2881

3 жыл бұрын

@@KeertiPurswani 1) I guess design was quite good but looking for future perspective we can derive a interface like employee from user interface and from this employee interface we can derive admin and agent... Reason is that let say in future we have need new requirements like adding intern or contractor employees that will added easily and have there own field also and of we look closely in admin and agent both field is common (no of days , level) and this is applicable for any sort of employees... 2) Rather that creates class for medical history we can have enumeration as it's going to constant through out the lifecycle. 3) Having dose1 and dose2 concept was quite good as if in future requirements will be like to display partially vaccinated so it'll help. Great video 🔥

@ankitraj2881

3 жыл бұрын

@@freshcontent3729 1.what is the system 2. Where this system will be used 3. Who will use the system 4. When this system will be used 5. Why system is required Plus add on 1. How - How system will work and respond. 😀 Hopefully you'll get the idea.

legends know this video was private, then made public

@MilindGupta

3 жыл бұрын

It's not legends it's called people who have too much free time

@KeertiPurswani

3 жыл бұрын

😂😂😂😂 I did too many mistakes in this video But I am so glad someone noticed 🤭🤭

@KeertiPurswani

3 жыл бұрын

Why you do this Milind. Let us be happy no 🥺

@samjebaraj24

3 жыл бұрын

@@MilindGupta you don't have to expose us like that 😂

@KeertiPurswani

3 жыл бұрын

Hee yes yes. Very very happy💃💃💃

This does not look like an interview , Here interviewer looks lenient and as an interviewer you ask very less cross questions . I can not relate it with my LLD rounds

lol

Spas? lol

@KeertiPurswani

2 жыл бұрын

Why not🤭🤭

The activity center idea was an unnecessary waste of time.