This process is a proven and tested method for blockchain developers in the industry. Organizing the process in this manner yields the most efficient and ideal outcomes. The blockchain application development process comprises eight steps, detailed below.
The eight steps in the blockchain development lifecycle:
Define the problem to be resolved with blockchain application
The first step of this process involves identifying a problem that a blockchain can resolve successfully. It can be both costly and unnecessary to use a blockchain when it is not required. Therefore, it’s critical to identify a real-world problem that a blockchain can resolve.
Choose the best-fitting consensus mechanism
Each blockchain project utilizes its own consensus mechanism. The most common are proof-of-work (PoW) and proof-of-stake (PoS). Other consensus mechanisms like practical Byzantine fault tolerance, proof-of-burn, proof-of-activity and proof-of-capacity can be adopted only if they are better suited for the project.
Decide on a programming language and blockchain
At this point, focus on designing the user interface of the application. The chosen blockchain to be built on will affect the programming language used, which in turn will influence how users interact with the chain. Moreover, interoperability is an additional consideration when thinking of languages. But, which programming language is used for blockchain technologies?
Some of the popular programming languages for blockchain developers are as follows:
After selecting a language, a blockchain developer should pick a database to work with. MongoDB and MySQL are two popular choices.
Select a blockchain development platform
At this stage, developers should identify which blockchain to build on. This allows for immediate development without having to create a blockchain from scratch. The blockchain platform selection process depends on the consensus mechanism that is required. Take note of the problems resolved by each consensus mechanism.
Blockchain development often relies on popular platforms designed to make the process easier. These platforms are used by both blockchain development companies and independent developers.
Some of the most common platforms are open-source blockchain platforms, such as
Developers should choose a platform that utilizes a familiar blockchain programming language. Every platform listed here will facilitate the blockchain development cycle.
It’s best to look into each platform’s capabilities and drawbacks, which will help determine whether the blockchain platform suits the project.
Develop a strategy for the remainder of the development process
In this step of the blockchain development process, evaluate the steps taken thus far. Lay out a plan, and prioritize a strategy for a more comprehensive process. This strategy should account for the characteristics of the chosen platform.
Begin to design the blockchain architecture
Determine if the blockchain will include specific permissions for targeted user groups or if it will comprise a permissionless network. Afterward, determine whether the application will require the use of a private or public blockchain network architecture.
Also consider the hybrid consortium, or public permissioned blockchain architecture. With a public permissioned blockchain, a participant can only add information with the permission of other registered participants.
Ultimately, the option worth considering is the one that best fits the use case.
Develop the blockchain application
Configure the key aspects of the application. Ensure that permissions, block signatures, address formats and key management are addressed first. These elements cannot be changed once implemented, so it’s best to give them some consideration from the start.
After this stage, start working on the blockchain application’s Application Programming Interface (API). APIs are used to perform auditing functions, generate key pairs, and store or retrieve essential data. The selection of blockchain APIs is dependent on the goal of the application. These APIs will provide the most value to all users.
A developer must also set up middleware. Middleware is software that connects external systems to the blockchain, thereby allowing communication between blockchain components and the apps running on it.
Some APIs required by almost every blockchain include
APIs for digital signatures and generating hash numbers are also required for data authentication. The developer may use prebuilt APIs for blockchain applications or choose to create new ones from scratch. Relying on prebuilt APIs speeds up the development process while building APIs from scratch offers greater flexibility.
Test and release an alpha version of the application
In this step, all of the accumulated efforts from the previous steps pays off and an early version of the project is now ready for testing. At this stage of the development process, focus on the core functions. Developers should try to spot potential issues as they arise.
It’s best to start with the bare minimum. A Minimum Viable Product (MVP) is all that is required to prove the blockchain model’s viability. Once the application is stable, the developer may choose to incorporate more complex features.
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