Is blockchain right for your business? Six questions to ask first

Blockchain has been promoted as the answer to everything from payments to supply chains to voting. In practice, it solves a narrow set of problems very well, and many others badly. Before investing, test your idea against six questions.

1. What problem are you trying to solve?

Start with the business problem, not the technology. “We want to use blockchain” isn’t a problem. “Our suppliers, shippers and customers each keep their own records of a shipment, and disputes take weeks to resolve” might be.

If the problem is slow processes, poor data or disconnected systems inside your own company, blockchain is almost certainly the wrong tool. Start with process improvement or connecting your systems.

2. Do several parties need to share one record?

Blockchain’s strength is a shared, tamper-evident record maintained by several organisations, none of which owns it. If one organisation can reasonably own the data and grant others access, a conventional database or shared platform is cheaper, faster and easier to change.

Ask: who would write to the ledger, who would read it, and why wouldn’t they trust a single operator?

3. Is your industry ready?

Blockchain only works if the other parties join. Some sectors have established networks and standards, for example in trade finance, some supply chains and digital assets. In others, you would be building the network yourself, which means persuading partners to invest, agree rules and change processes. That is usually the hardest part.

4. What will it really cost?

Beyond development, budget for:

• Partner onboarding and governance: agreeing who can do what, how disputes are settled, and how rules change.
• Integration with each participant’s existing systems.
• Transaction and infrastructure costs, which vary widely between public and private networks.
• Security audits of smart contracts.
• Legal and regulatory work, especially for anything involving digital assets or personal data.

Compare the total with a conventional solution that meets the same need.

5. Do you need decentralisation, or just a good audit trail?

Many cases that seem to need blockchain actually need a reliable audit trail: who changed what, and when. Modern databases and document systems can provide tamper-evident logs, signatures and permissions at a fraction of the cost. Choose decentralisation only if no single party can or should be trusted to run the system.

6. What are the security and compliance risks?

The core ledger is hard to tamper with, but risks remain:

• Smart contract bugs that can be exploited, with no easy way to reverse transactions.
• Key management: lose or leak the private keys and you lose control.
• Personal data: data written to an immutable ledger can’t easily be deleted, which conflicts with privacy rights. Keep personal data off-chain.
• Regulation: rules for digital assets and stablecoins are tightening, for example the EU’s Markets in Crypto-Assets Regulation.

So, should you invest in blockchain?

Consider it if you can answer yes to all of these: several independent parties need to share and update one record; no single party should own it; the other parties are willing to join; and a conventional database with good access controls genuinely can’t do the job. If any answer is no, a simpler solution will almost certainly serve you better.

Where to start

Most of the problems people bring to blockchain are really about data that doesn’t connect and processes nobody owns. Our Systems & Integrations work fixes those first. For a broader view of where technology investment pays, read our digital transformation strategy guide.