------------------------------珍惜眼前的学习机会,当你现在有机会学习各种经验时,一定要倍加珍惜.靠混日子是混不了一辈子的,许多过程都是不能省略的,至少学会这些经验可以让你少走很多弯路. 问题的提出 在计算机科学领域,分布式一致性是一个相当重要且被广泛探索与论证问题,首先来看三种业务场景. 1.火车站售票 假如说我们的终端用户是一位经常坐火车的旅行家,通常他是去车站的售票处购买车 票,然后拿着车票去检票口,再坐上火车,开始一段美好的旅行----一切似乎都是那么和谐.想

Android Design Principles Enchant Me Delight me in surprising ways 用惊奇的方式取悦用户 漂亮的界面,仔细放置的动画,一个恰到时机的音效,都是愉悦的体验. 轻微的效果会造成一种不费力感觉,还有一种力量就在手边的感觉. Real objects are more fun than buttons and menus 真实的物体比按钮和菜单更有趣 允许用户在你的app中直接触摸和操纵物体. 这样使得执行一项工作时的认知更加容易(花费的

这是我在2018年4月写的英语演讲稿,可惜没人听得懂(实际上就没几个人在听). 文章的内容是我从此前做过的项目中总结出来的经验,从我们的寝室铃声入手,介绍了可扩展性.兼容性与可复用性等概念,最后提出良好的设计应该平衡这些特性与性能.成本之间的三角关系. 第一次用英文写有一点专业性的东西,不知道算不算好. 以下为原文: Design Principles Intro One day, on the noticeboard in our dormitory, there was a paper sa

gRPC Motivation and Design Principles | gRPC https://grpc.io/blog/principles/

设计原则解读. 设计原则是对设计模式的约束性要求,属于设计中基本的四项特征,不符合此四项特征的设计,不具有生命力. 设计模式也是在此四项设计原则上的具体化实例化衍生物. Martin原文: http://www.cvc.uab.es/shared/teach/a21291/temes/object_oriented_design/materials_adicionals/principles_and_patterns.pdf Architecture and Dependencies 软件最开始

[the original link] One of Qt’s most reputed merits is its consistent, easy-to-learn, powerfulAPI. This document tries to summarize the know-how we’ve accumulated on designing Qt-style APIs. Many of the guidelines are universal; others are more conve

---------------------------------------------------------------------------------------------------------------------------------------------------------- 原文作者:Google 原文地址:http://developer.android.com/design/wear/principles.html 原文版权:Creative Commons

BASE 理论是由 Dan Pritchett 在 ACM 上发表的一篇论文中提出的理论.是在 CAP 理论基础上提出的一种更实际的理论指导,和 PACELC 理论是有些相近的地方的. BASE 是指 基本可用(Basically Available).软状态( Soft State).最终一致性( Eventual Consistency). 对于目前的互联网应用,基本上都不会是单机系统,而是多机分布式系统,所以 CAP 中的 P 是一定要的特性.剩下的 C P 根据实际场景取舍.BASE 就

Master's conclusion: 1. fix a color pattern 2. fix the frames the UI will use 3. fix the subject that you want to present 4. fix the content that you want to show5. properly layout it! caution: color types should be less, and use the contrast concept

Enchant Me Delight me in surprising ways(动画.音效...) Real objects are more fun than buttons and menus(实物化图标...) Let me make it mine(可定制背景...) Get to know me(记忆用户偏好...) Simplify My Life Keep it brief(简洁提示...) Pictures are faster than words(图片优于文字) Decid

Classes are the building blocks of your java application. If these blocks are not strong, your building (i.e. application) is going to face the tough time in future. This essentially means that not so well-written can lead to very difficult situation

pingback :http://java.sys-con.com/node/84633?page=0,1 Object-oriented design is like an alloy consisting of a solid grounding in the object-oriented (OO) approach and implementing the best OO practices heavily laced with how to sidestep the OO pitfal

原文地址:http://www.infoq.com/articles/ddd-in-practice Background Domain Driven Design (DDD) is about mapping business domain concepts into software artifacts. Most of the writings and articles on this topic have been based on Eric Evans' book "Domain Dr

原文 "If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization." - Gerald Weinberg You should architect and design software solutions with maintainability in mind. The pri

Introduction Me and my wife had some interesting conversations on Object Oriented Design principles. After publishing the conversation on CodeProject, I got some good responses from the community and that really inspired me. So, I am happy to share o

转自:https://medium.com/expedia-group-tech/graphql-component-architecture-principles-homeaway-ede8a58d6fde At Vrbo, we’ve been using GraphQL for over a year. But there are some differences in how we’ve implemented and used GraphQL compared to some exam

Design principles: Conceptual models Feedback Constraints Affordances All are important. This is what makes design such a challenge and rewarding descipline: it grapples with the need to accommodate apparently conflicting requirements. Much of our ev

转自:https://erlangcentral.org/wiki/index.php/Building_a_Non-blocking_TCP_server_using_OTP_principles Building a Non-blocking TCP server using OTP principles From ErlangCentral Wiki Contents 1 Author 2 Overview 3 Server Design 4 Application and Supervi

Q: What is a Design Pattern? A: Design Patterns represent solutions to problems what arise when developing software within a particular context. Each pattern describes a problem which occurs over and over again in our environment, and then describes

Back to Human Interface Design Design with the User in Mind 从用户角度进行设计 The success of a Mac app depends largely on the quality of its user interface. If users don’t find an app attractive and easy to use, even the fastest, most powerful, most full-fea

Human Interface Design It’s not enough to create an app that works. Users expect Mac apps to be powerful, intuitive, and engaging. Think about the user experience as you design every aspect of your app, from the features you choose to the pointer you