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1. Blockchain and smart contracts, Ethereum development, compiled by 183 developers, summary of knowledge system
Available tools and components for developing applications on Ethereum , patterns, and platforms.
The creation of this list was driven by product managers at ConsenSys who saw a need for better sharing of tools, development patterns, and components between new and experienced blockchain developers.
Develop smart contracts
Smart contract language
Architecture
IDE
Other tools
< p> Test the blockchain networkTest the Ethereum faucet
Front-end Ethereum API
Back-end Ethereum API
Bootstrap/Out-of-the-Box Tools
Ethereum ABI (Application Binary Interface) Tools
Ethereum Client
Storage
Mahuta - IPFS storage service with additional search capabilities, formerly known as IPFS-Store
OrbitDB - decentralized database on top of IPFS
JS IPFS API - Client library for the IPFS HTTP API, implemented in JavaScript
TEMPORAL - Easy-to-use API to IPFS and other distributed/decentralized storage protocols
PINATA - Using The Easiest Way to IPFS
Messaging
Testing Tools
Security Tools
Monitoring
Other Miscellaneous Tools
Cheshire - A native sandbox implementation of the CryptoKitties API and smart contracts, available as a Truffle Box
ERCs - Ethereum comment request repository
ERC-20 - Original token contract for fungible assets
ERC-721 - Token standard for non-fungible assets
ERC-777 - Improved token standard for fungible assets
ERC-918 - Minable Token Standard
Popular smart contract library
Scalability
Payment/State Channels
Plasma
Sidechains
POA Bridge
POA Bridge User Interface
POA Bridge Contract
ZK-SNARK
ZK-STARK
Pre-built UI components
The above content is from the git library:
github.com/ConsenSys/ethereum-developer-tools-list
I am Yu Ge, a full-stack programmer starting a business in Shenzhen, focusing on blockchain, metaverse and smart contracts, as well as additional small programs and app development.
[Prayer]
2. How to learn blockchain technology
Recently there has been endless news about various digital currencies, and Bitcoin is the one that everyone The most familiar one, Hu Ce, has been a hot topic a long time ago. There are many people who make a lot of money from this. Of course, different countries have different recognitions of Bitcoin, but no matter what the future trend of Bitcoin is. Knowledgeable people should see more than just digital currencies such as Bitcoin, because these are temporary hot spots after all, and it is worth speculating which currency will make it to the end.
Bitcoin is just an application product brought about by new technological innovation, and what really changes future technology is not the digital currency, but the blockchain technology behind it. Recently, whenever blockchain technology is mentioned, it will become a hot topic. However, as everyone knows, some well-known Internet companies such as Internet, Tencent, Xiaomi, and Xunlei have been unconsciously conducting research in the field of blockchain for a long time.
While ordinary netizens are still obsessed with hyping various virtual currencies, smart people have already begun research and study on blockchain technology. Of course, since it is a new technology, not many people know how to show it, and even fewer people study it in depth. But in any case, blockchain technology has deeply entered the research scope of various large companies. As more powerful companies invest in research in this area, the demand for blockchain technology talents will increase.
Things are rare and valuable, but the same is true for people. When the market demand for blockchain technology becomes greater and greater, and even when new product applications created by blockchain technology appear in the future, the demand for blockchain talents in the entire Internet community will far exceed that of iOS back then. The scene in heat. Of course, for those who understand blockchain technology, the objective salary will also become the envy of other technical professionals.
Go language is the second open source programming language released by Google in 2009.
The Go language is specifically designed for multiprocessingThe programming of server system applications has been optimized. Programs compiled using Go can be as fast as C or C++ code, are more secure, and support parallel processes. Not only can you develop the web, but you can also develop the underlying layer. Currently, Zhihu is developed using golang. The preferred language for blockchain is go, Ethereum, and Hyperledger are all based on go language, as well as the go language version of btcd.
The goal of Go is to improve the dependency of existing programming languages on libraries and other programs. Management, these software elements will be called repeatedly by the application. This language is also designed to solve multi-processor tasks due to the existence of parallel programming models.
Google has high hopes for Go. Its design is to allow the software to take full advantage of the simultaneous multitasking of multi-core processors and to solve the troubles of object-oriented programming. It has modern programming language features, such as garbage collection, to help programmers deal with trivial but important memory management issues. Go is also very fast, almost as fast as C or C++ programs, and can quickly create programs.
Go's website was built using Go, but Google has greater ambitions. The software is specifically designed for building server software (such as Google's Gmail). Google believes that Go can also be applied to other areas, including executing software within the browser and replacing the role of JavaScript.
3. A blockchain can be divided into at least three layers. What are the three layers?
Jinwowo Network Technology analyzes the key points of blockchain layering as follows: < br />
The bottom layer is some common basic modules, such as basic encryption algorithms, network communication libraries, stream processing, thread encapsulation, message encapsulation and decoding, system time, etc.;
The middle one The layer is the core module of the blockchain, which generally contains the main logic of the blockchain, such as P2P network protocol, consensus module, transaction processing module, transaction pool module, simple contract or smart contract module, embedded database processing module, and wallet module Wait;
The top layer is often an interactive module based on Json Standard RPC. Based on Json-RPC, we can also make a better UI interface, or it can be a web-service .
4. The ten most secure blockchain wallets
With the rise of blockchain technology, various digital currencies have sprung up like mushrooms after a rain. After seeing the popularity of Bitcoin, many investors also switched to the currency circle from the stock market, real estate market and other places. Playing and speculating on coins are inseparable from a blockchain wallet. To evaluate the quality of a blockchain wallet, the first thing to consider is security. Nothing is more important than the security of your account. The products in the top ten most secure blockchain wallet rankings can do this. Without security, convenience and speed are meaningless.
The most secure blockchain wallet ranking list
1.Bitcoin core
2.Blockchain
3.SafeWallet
4.Bitai Wallet
5.Fast Wallet
6.Sia UI
7.Ledger Nano S
8.IDC Wallet
9.MyEtherWallet
10.imToken
Bitcoin core is one of the earliest wallets and the most mainstream wallet at present. Almost everyone who plays Bitcoin is using it. It has very complete functions and can query information such as blocks, transactions, public keys and private keys. Moreover, Bitcoin core can also encrypt the wallet, which is very secure. However, Bitcoin core only supports PC, and it is a full-node wallet with a node size of 150GB, which requires high computer hard drive space.
Blockchain is also a wallet specifically designed to serve Bitcoin. Its size is only 50M. Although it is a light wallet, it has many functions. It not only supports the storage of Ethereum and Bitcoin, but also comes with a mnemonic phrase. Even if you forget all your ID and password, you can still use the mnemonic phrase to recover funds and transaction information. However, Blockchain only supports ios devices on the mobile side, and users using Android or PC can only log in to the blockchain.info web version.
SafeWallet is the latest wallet launched in 2018 from the domestic Internet company Cheetah Mobile. The characteristics of SafeWallet are the same as its name. It has a three-layer solid defense system to protect your digital currency assets at all times. SafeWallet supports many currencies and can be used by both ios and Android users. However, this product is only released overseas, and domestic users need "micro-approval" to use it.
Although Bitai Wallet has a slightly crude interface and fewer functions, it combines the characteristics of cold wallets and hot wallets. It can be insulated from the network, perfectly guarantee the security of private keys, and takes up less space, so it can be operated on a mobile phone. Cold mode protects private keys, and hot mode sends and receives transactions, taking into account both security and convenience. Moreover, the development team of Bitai Wallet attaches great importance to user experience. As long as you feedback questions to them, you will get answers and solutions.
5. Blockchain Design Principles
What our team has learned so far—about blockchain-specific business and user needs—is Our design work informs.
Currently, the IBM Blockchain Design Team is designing everything from supply chain processes to documentation, from open source developer tools to blockchain as a service. This is the nature of the industry: frantically exploring all possible applications for a technology that has the potential to be huge in areas such as finance, healthcare, and government.Dramatically reduce costs and inefficiencies.
Although design has taken many different directions, there are some common themes in our users’ needs that have influenced our design principles as a team. This is the IBM Blockchain Design Team’s first iteration of these principles—what we focus on when critiquing our work and prioritizing design decisions.
“Just because blockchain technology is designed to eliminate reliance on trust, it doesn’t mean users will trust the machine or network.” — Jonny Howle, UX/UI Designer
Many of our users are in industries that handle highly sensitive information, and maintaining their trust is critical to our business. Almost everyone is new to blockchain, with varying levels of understanding and confidence. Users must view our products (and the people behind them) as reliable, trustworthy, and stable. We achieve this through careful data disclosure, consistency, feedback, prediction errors, and proactive coaching.
Some users will need more exposure to blockchain data than others – many users will need to understand how blockchain technology can replace their previous processes in order to feel that it is trustworthy. Exposure of data affects users' understanding of how the application works. For example, the data shows that a function call occurred, or it can prove that something is cryptographically secure.
When deciding whether to include a data element, we use the following hierarchy:
1. The data must be actionable.
2. If the data is not actionable, it must be used for trust-building and/or educational purposes.
"Old school" blockchain tools show you many long cryptographic hashes. They are not human readable. They are of no use to users...but people love them! Why? It's a comfortable feeling: "I can see a non-human-readable chaincode ID, so I trust that this thing I'm looking at is secure." — Ed Moffat, Design Lead
Creating visual consistency between product and customer experience is critical to perceived trustworthiness. We use grid-based layouts (with meaningful and proportional negative space), strong typographic hierarchy, and apply meaningful Color.
Having a consistent user experience puts our users at ease, which is especially important with new blockchain technologies as it drives adoption and learning. — Tobias Hunter, UX Designer
Since the visual language of blockchain is still being codified, we need to be careful when using images to illustrate concepts. Although IWe create associations with familiar elements to help users retain information, but we're wary of visual metaphors—simplifying certain concepts can actually mislead or cause confusion later.
We make every effort to use jargon-free, consistent terminology. Language should be concise, clear, and consistent with our users’ natural communication patterns. We maintain a conversational tone without being too casual or flippant. Our team pays special attention to words with meanings like identity , update , and network : while many blockchain concepts have similar meanings to commonly understood meanings, they can be very different and confusing.
We design for wherever our users are. Because blockchain is by definition distributed, we must design across borders by default: UI extensions, icon meanings, translations, etc. must always be taken into account. Additionally, many uses of blockchain are mobile in nature – we maintain a consistent experience regardless of the device used.
We help our users understand what's going on and reduce anxiety by designing for continuous feedback. Carefully used movement and animation help understand what's going on.
When you learn a foreign language, you learn by practicing and playing, not by reading a dictionary. We are making tools and documentation to allow our users to play around and try to learn this new technology. — Sam Winslet, Visual Designer
Users should always know what is happening, what just happened, and what will happen next. Time is an important element in blockchain applications, and many times a simple loader is not enough.
High-throughput distributed systems are asynchronous in nature, with multiple components of the system relying on timeouts or polling intervals. Transactions can be configured while waiting for the optimal block size to be reached (usually lasting a few seconds). The SDK will poll, wait, and retry creating a new channel. — Jason Yellick, Software Developer
We make sure we consider (and test after launch) the time an activity or feature will take and notify users. This also applies to any metrics in the interface - how many categories the user saw, how many were not shown, etc.
Our users love hands-on, interactive learning so they can learn while creating something tangible. — Raissa Xie, User Experience Researcher
Because blockchain is virtually immutable, we pay special attention to irreversible user actions. if something goes wrongIf an error occurs, we increase the friction or confirmation level to reduce the error and move directly to the next step.
Zero states are common in many of our products, so we make sure to provide a natural next step. Users must have clear, persistent navigation—it should be easy for them to know how to get back to their previous state and what the next step is.
Our users want to see simple instructions to get up and running as quickly as possible.
— Lucie Wu, UX Designer
Since control over visibility is a business requirement, we made sure to consider different views of the interface based on roles. We don't leave holes in the interface if the user doesn't have access to certain data.
Blockchain technology is relatively new and most users don’t necessarily know what they need. A good designer should know how to filter their opinions and come up with the best solution. Designers help them understand the benefits and possibilities this technology can bring to their lives by guiding them through the process.
— Andrea Lee, UI Designer
Our team anticipates the need for further assistance and attempts to reduce it while recognizing where our characters are most likely to go for help. We generate insights to create transparency and remove uncertainty, and provide suggestions for things users don’t remember.
Make an otherwise daunting learning task look easier by showing users their new vocabulary with tooltips and progress bars.
— Kayla White, UI Designer
We don’t include elements that clutter the interface or confuse users, regardless of context—every element has a Purpose, nothing is for decoration. We leverage common design patterns and reduce the amount of learning the user has to do.
In many cases, multiple of our roles will be part of the process. To facilitate collaboration, we designed the steps before and after a user is given a task. Team adoption of our technology is critical to our business model, so it's natural that we value inclusive, accessible design.
Designing for complexity doesn’t mean making things simple. Make the task easier, but don't take away their control.
— Dante Guintu, UI Designer
Excitement over blockchain technology has increased the tendency to focus on machine needs rather than human needs. As designers, we must constantly refocus our efforts on solving problems and creating joy for humanity.Fast experience. We must balance the tension between the nature of blockchain and human-centered design.
Even for non-technical users, the technical concept of blockchain seems incredibly alluring. -
Ed Moffat
Because the many applications of blockchain have very powerful potential, we must take care to act and design in an ethical manner. This means ensuring diversity is built into our designs—from user research participants to our teams themselves.
Our design team is in a constant state of collaboration: researching, testing, and being alert to changing user needs and design patterns. We are committed to protecting and advocating for our users, considering edge cases and outliers, and taking user emotions into consideration. We strive to improve our users' lives without creating new problems for them.
Design is not static. The main mantra of this group is that we strive for excellence, not perfection.
—— Sean Barclay, Creative Director
Reprinted from: https://medium.com/design-ibm/blockchain-design-principles-599c5c067b6e
6. How is the UI design? What are the future prospects? Can anyone who knows how to do UI give me an answer?
How is the UI design? The English translation of UI design is the design of user interface. What is an interface? The interface is the interactive screen we see, such as mobile phones, computers, ATM machines, hospital number-taking machines, etc. A poster or an advertisement is essentially a one-way transmission of information to the audience, so when designing, the designer only needs to consider what information is conveyed.
But if it is at the UI design level, it is different. Designers have to consider not only the output of information, but also how users interact with the interface. So one is one-way information transmission and the other is two-way information interaction. It is not a static design. It involves a series of processes after the user clicks on the page. This is a career based on technological development. As technology develops, UI design is also changing. From the perspective of technological development trends, what are the future prospects?
The Internet nature of the UI designer position determines that it must keep pace with the times. Such attributes also require designers engaged in UI design, and even the entire user experience design industry, to continuously learn and grow to match the requirements of the rapidly developing market. A concept that is particularly popular recently is called "Metaverse", and its English name is MetaVerse.
Why did this concept become popular during this time? It may be related to the epidemic, or it may be related to the wave of capital seeking profits, or it may beIt is related to the maturity of public cognitive concepts, and may also be related to the current technological maturity. My good friend Chen Wei, design director of Tencent P&P Design, gave a sharing at the Zhiqun Conference in May this year. The Metaverse needs to be supported by three basic core technologies: AI, virtual reality, and blockchain. AI provides a mechanism for continuous automatic evolution, just like the male protagonist in "The Lost Player", who continues to grow himself. Devices such as virtual reality are the medium and carrier between humans and the metaverse. The setting of the blockchain can decentralize the value production, storage, distribution and transaction of the universe. The "Metaverse" era is about to be an era driven by "design". Compared with the previous "technology-driven" era of PC Internet and mobile Internet, the "Metaverse" is about to create a large number of jobs for designers. As "user experience" is increasingly put on the agenda, it has become an urgent growth point following the "technical bottleneck". This means that while the UI design position has greater development, it also has higher competency requirements for designers themselves. This is an opportunity and a challenge.
Don’t limit the prospects of UI design to designing mobile phone interfaces. UI designers will have a role in any interface that can interact with people in the future. From the perspective of the talent market, the scarcer the talent, the higher the value and the higher the salary. --I have more than 1.3 million followers on Zhihu, making me the most followed designer and product manager. In the field of design, they should be among the earliest batch of Internet designers in China. I used to be a user experience and product designer at IBM. I was also one of the earliest members of the Innovation Works, working with Mr. Kai-fu Lee. The product we created at that time was acquired by Alibaba for hundreds of millions of dollars. I also created a product called The Most Beautiful Application, which also has a good reputation in China. At the same time, in the field of Internet products and user growth, we are involved in many products that everyone is familiar with. In the field of education, I am also a part-time tutor at Beijing University of Posts and Telecommunications, and many students at Beijing University of Posts and Telecommunications know me. For students who want to switch careers as UI designers and interaction designers, I created a product design training camp to help many designers who are just getting started and those who are entering the industry find their own job path and learning plan. Therefore, if you want to do UI design, you can first take free courses online to gain a comprehensive understanding of the industry.
