问题描述
我最近参加了Amazon Interview，在设计回合之后被拒绝了，它在两年内与Amazon发生了3次，我总是因为设计回合而被拒绝.请帮助我知道如何回答设计问题.像这样的问题1)设计电梯控制系统2)设计耳语同步功能(用于Amazon Instant Video平台)他们要求我设计端到端高密度脂蛋白低密度脂蛋白我没有得到两者之间完全不同的内容，我作为一种算法明智地进行了解释，但是HLD和LLD无法正确地进行解释.
I have recently attended Amazon Interview and got rejected after design round, its happened three times with Amazon in 2 year, i always getting rejected because of design round.please help me to know how should i answer an design question.questions like 1) design elevator control system2) design whisper-sync feature (used in Amazon instant video platform)they ask me to design End to endHLDLLDi did not get what exactly differ in both, i explain as a algorithm wise, but could not properly by HLD and LLD.
我的意思是我搜索了很多东西，但是找不到答案.
i mean i searched alot, but could not found a way to answer such question.
任何帮助对我都是有益的.
Any help will be good for me.
谢谢
推荐答案
HLD:高级设计由要定义的子系统设计组成.它针对的是建筑师，技术主管等.-解决方案技术概述-接口-小学班-具有以下内容的数据库实体-假设
HLD: High Level Design consist of sub-system design to define. It target architect, Technical leads etc.- Solution Technical Overview- interfaces- primary classes- Database entities with - Assumptions
LLD:下层设计包括子系统的各个模块/部分设计.它主要是HLD的扩展.它针对核心开发人员和涵盖以下项目:-所有类别的实体和介面-数据库模型(表，列属性，索引，约束)-类中使用的方法的算法-记录实现
LLD: Lower level design consist of individual module/section design for the sub-system. It primarily extension of HLD. It targets core developers & covers following items:- All classes entities & interfaces- DB Model (Tables, column attributes, indexes, constraints)- Algorithms for methods used in classes- Logging implementation
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