How to Build a Blockchain App: All-in-One Tech and Business Guide
Though
the hype around cryptocurrency has subsided, the interest in blockchain remains
the same.
Blockchain
market size is projected to grow from
2.01 billion in 2019 to 69.04 billion in 2027, showing a CAGR of over 56%.
Blockchain is a digital ledger
of transactions with copies distributed across the entire network of computers
connected to the blockchain. Each block in the chain contents a number of
transactions. Every time a new transaction is added, a record of information
about that transaction is added to every participant’s blockchain.
Blockchain is an innovative
system of recording information in a way that makes it difficult to impossible
to hack or compromise the system.
4 KEY TYPES OF BLOCKCHAIN
When it comes to blockchain, there 4 two types of networks that you can
utilize for your project:
- Permissionless
     blockchain (public) – accessible to all members of the networks
     and on any device. Any user can become a part of the blockchain, make
     transactions, verify them and stay anonymous. The main example of
     permissionless blockchain is Bitcoin. This type of blockchain is great if
     you want to create an app that will be available for a wide audience.
- Permissioned
     blockchain (private) – accessible to authorized participants only.
     This type of blockchain has certain rules that regulate transactions
     between network participants (nodes). Permissioned blockchain is mostly
     used by organizations for internal purposes with all the transactions
     validators belonging to the same company.
- Hybrid blockchain – in some cases,
     organizations will benefit by taking the best from the two worlds. Hybrid
     blockchain allows to create a private system alongside a public system.
     This way, they can control who can access specific data stored in the
     blockchain and what data is open to all network participants.  
- Consortium
     blockchain – this type of blockchain is also known as
     a federated blockchain. It is similar to the previous type as it’s a
     private blockchain with limited access to a particular group. Consortium
     blockchain has a validator node that can initiate, receive and validate
     transactions. Member nodes can only receive and initiate transactions, but
     they cannot validate them.
THE INDUSTRY FOR DAPP DEVELOPMENT
According
to State of the dApps,
there are over 3,5459 active decentralized applications. Such apps are
distributed through different industries, such as gaming, finance, health,
security, and so on.
Let’s
review some of the industries that blockchain is disrupting and get some
inspiration for your future project.
The technology can be used for all key services provided by banks, such as
payments, clearance and settlement systems. One day, blockchain promises to put
crime and fraud to rest in the financial industry. The benefits of implementing
a decentralized ledger include:
- Real-time and
     multi-party tracking and management of bank guarantees
- Faster and more
     accurate automated reporting that draws information from immutable records
- Faster transfer
     of funds between financial institutions with accelerated settlement
Numerous companies in the finance industry are already using blockchain in
their daily operations. Examples include Credit Suisse, which uses
blockchain to settle US stock trades. JPMorgan Chase uses
decentralized technology to facilitate transactions between institutional
accounts. Ripple and R3 are among the most popular blockchains used in this
industry.
Implementations: Credit Suisse, JP Morgan Chase, Western Union, Santander
1. 1. Insurance
3. Healthcare
3.    Real estate
4.    Retail
5.   
Supply chain
6.   
Copyright
& intellectual property
7.   
Internet of
things (iot)
8.   
Internet
identity and dns
TOP-7 MOST POPULAR BLOCKCHAIN DEVELOPMENT PLATFORMS
If you are wondering how
to build a blockchain app, you first need to learn about the most popular
blockchain platforms. There are quite a few solutions that you can use as the
basis for your application.
- Ethereum – one of
     the most popular open-source blockchain platforms that gained popularity
     thanks to flexibility. Ethereum can be used for creating decentralized
     apps (dApps), smart contracts, and ICOs. Building Ethereum is only
     possible with its own programming language Solidify, but thanks to HTTP
     API, it’s possible to create dApps in any programming language.
- Hyperledger
     Fabric – this blockchain platform is especially popular
     among companies dealing with supply chain management and connected
     devices. This is an advanced platform for permissioned networks, thus
     requiring the user’s authorization. If you choose this platform, you will
     need to hire Go, Java, and JavaScript developers for the task.
- EOS – the platform
     is designed for building dApps that rely on the use of smart contracts.
     The solution offers decentralized application hosting, decentralized
     storage of enterprise solutions, and smart contracts capability.
- R3 Corda – the platform
     is mostly used for creating permissioned blockchain and can be easily
     integrated with an already existing system. The main spheres of use are
     eCommerce, healthcare, supply chain and trade finance.
- OpenChain – an open-source
     distributed ledger platform that uses a single authority for transaction
     validation. The platform is mostly used by companies to securely manage
     digital assets. There is no transaction fee and only one administrator
     needed for their validation.
- NEO – a platform is
     designed for decentralized solutions that require high performance and
     scalability. NEO uses NEO token for paying transaction fees and uses
     Delegated Byzantine Fault Tolerance since it offers the higher performance
     needed for high-load dApps.
- Ripple – a blockchain
     platform designed for financial services. Ripple connects payment
     providers, digital assets exchanges, banks and corporations with their
     blockchain network RippleNet. Ripple allows building fast and scalable
     solutions, which is ideal for the financial industry.
BLOCKCHAIN APPLICATION DEVELOPMENT
In most companies, the software development
process is divided into two major stages.
DISCOVERY STAGE 
Discovery stage (also known as
the pre-development stage) – during this stage, the blockchain development
vendor will identify your needs and business requirements. The main goal of
this stage is to create an overall understanding of your project and all
requirements that you have.
The discovery
stage offers a number of benefits, such as:
- Time and money saving
- Business and technical
     requirements validation
- Documentation of project
     functionality
- Evaluation of potential
     risks and their addressing
- Tasks prioritization and
     allocation of a development team
- Full understanding of the
     client’s needs
Key deliverables of
the Discovery stage include:
- Finalized project concept
- Product backlog
- UX/UI design
- Project architecture plan
- Market and competitor
     analysis (optional)
DEVELOPMENT STAGE
During this stage, the code
base of an application is created. Development usually involved the work of
different experts, such as front-end and back-end developers, QA engineers,
Software Architects, and Project Managers.
In most cases, you start small
with the simplest version of your app. This way, you can safely test your app
idea without heavily investing in the development process. The main goal of MVP
(Minimum Viable Product) development is to reduce risks, especially if you are
working with blockchain and some unique features that no one has built before.
After you’ve successfully
tested your idea, you can move to full product development.
HOW MUCH DOES IT COST TO BUILD A BLOCKCHAIN
APP?
Usually, blockchain app development cost starts at
around $20,00-$60,000 and can reach up to $200,000 and
even go beyond this number. Usually, if you work with US blockchain app developers, hourly
development prices start at $100 and can reach $250 in some cases. Off-shore
app development outsourcing makes sense if you want to get the best talent on
the market at affordable prices. 
Companies from Europe and Asia are of great interest to startups and
companies from all around the world, as you can get the same quality services
for twice as low prices as compared to the US market.
Read more about How to Build a Blockchain App.

 
 
 
Comments
Post a Comment