Web3 is a term used to describe digital products and infrastructures that combine web applications, blockchain networks, programmable assets, and different forms of digital identity or ownership. The term is broad and can mean different things in each project.
A Web3 platform can have decentralized and traditional components. The choice depends on what needs to be verifiable by third parties, what requires privacy, and what needs performance, support, or integration with existing systems.
For the user, the experience must clearly show when a transaction will be recorded, what costs may exist, and who has permission to act. Abstracting complexity is useful, but hiding risks or responsibilities is not.
The best starting point is to map the journey and requirements. Then the team can compare dApps, APIs, wallets, contracts, and conventional services to arrive at an architecture proportional to the problem.