A practical guide to whether you should patch, upgrade or rebuild your booking portal as a travel agency, OTA, TMC or tour operator.

Every travel business will reach a point where there are issues with their booking portal. Whether it is slowing down releases, breaking supplier integrations in unexpected ways, poor mobile conversions or the development team spending too much time putting out fires, someone will ask whether you should rebuild your system.

Whilst rebuilding can be expensive, risky and time consuming, it can become far more expensive in the long run if you keep using a broken platform. This article explains in a clear way whether you should upgrade, upgrade incrementally or rebuild.

Why Travel Portals Age Faster Than Most Software

The travel industry is one of the most challenging technologies out there. At its core, a travel portal is not just a website but an orchestrator made up of many components that need to work in real time:

 Distribution Providers – GDS platforms (Amadeus, Sabre, Travelport), NDC APIs (from airlines), hotel aggregation platforms, bed banks, car rental/activity providers.

 Pricing and Inventory – Dynamic markup, commission, fares, currencies, promotions.

 Payment and Compliance – PCI DSS, PSD2/SCA, Data Privacy (GDPR) and Tax.

 Customer Experience – Search results, mobile friendly, personalisation and self service amends and cancellations.

With constantly evolving supplier standards (airline industry moving away from EDIFACT based legacy systems to NDC and modern APIs), customers expect you to deliver the best consumer applications in the world. A portal created 6 or 7 years ago using a monolithic architecture will feel very old.

The Three Paths: Upgrade, Modernize or Rebuild

1. Refresh (upgrade). Refresh the technology stack by fixing performance issues, refreshing the interface and other improvements without changing the overall architecture of the system. This approach works well for systems that have been built on solid foundations but haven’t been maintained for some reason.

2. Modernize (incremental re-architecture). Replace different components of the application one by one using the so-called strangler fig approach, which means growing new services from the old core one by one (search, payments, content management, profiles and so on).

3. Rebuild (re-platform). Start a completely new project, design and build a new application from scratch and transfer all the data to it.

In most companies, there’s an idea that you need to choose between rebuilding and modernizing and the reality is somewhere in the middle.

Warning Signs That Point Toward a Rebuild

There is no one symptom to be enough to take a second look, but several of the following symptoms are enough of a warning.

1. The price of change continues to skyrocket

Any change, whether it's adding a payment method or a new supplier, is taking weeks and involves dozens of files if your architecture is working against you. Monitor lead time for change, and change failure rate. If both increase over time, it's time for technical debt to be addressed.

2. The technology stack is end-of-life

Unsupported languages, frameworks or databases imply no security patching, diminishing pool of talent and increasing hiring expenses. The longer you delay, the more risky it will become if your core is based on technology that vendors have left behind.

3. Revenue is being impacted by scalability limitations

When the system is tightly coupled, it is a no-brainer that you are losing bookings during your peak periods if there are slowdowns or outages due to seasonal peaks, flash sales or marketing campaigns, aren't you? Slow results are very expensive: travelers get bored with slow results.

4. Integrations are fragile and custom-made.

The lack of a single abstraction layer, duplicated logic and hard-coded supplier connections result in each new API being a mini project. When it seems like open-heart surgery to add NDC content or a new hotel source, an entire redesign of the integration layer may be appropriate.

5. No security and compliance gaps can be fixed

Incorporating payment data handling, authentication or audit logging into the codebase makes compliance costly and unreasonable. Isolation of a problem is not always possible without the restructuring.

6. Nobody fully understands the system

If knowledge is contained in the heads of one or two developers who have been with the organization for a long time, there is no documentation and no tests, the system is a business continuity risk, not only a technical risk.

7. The business model has changed

As the product transitions from B2C to B2B2C, dynamic packaging, a white label initiative, or multiple markets/language options may necessitate a data model not previously considered by the original system.

Signs You Should Not Rebuild (Yet)

Rebuilds are attractive because they offer a chance for a clean slate. In addition, they have a reputation for high failure rates. Stop if any of these signs apply:

 The issues are primarily UI/UX-related. Reworking only the front end in light of a reliable back-end architecture is much cheaper than rebuilding the whole thing.

 Performance problems have identifiable causes. Suboptimal cache usage, poorly written queries and inefficient calls from suppliers are often fixable in a few weeks.

 There is significant value and experience in the core logic. Business rules accumulated over many years, including those concerning pricing and fare calculation, are an irreplaceable asset.Rewriting them will result in reintroducing some old bugs.

 There are no clear requirements. A reconstruction done without a well-defined success criterion will inevitably lead to a costly remake of the previous product.

 The team cannot support two systems. A rebuild implies running legacy and rebuilt systems in parallel for at least several months.

A simple sanity test is whether you are able to articulate the improvements of the new system and metrics to measure them.

How to Modernize Without Betting the Business

Even in case a full reconstruction is needed, a step-by-step solution greatly reduces risks.

1. First, stabilize the current system by introducing monitoring, automatic testing, and lightweight documentation of the legacy system – it is impossible to replace what you cannot see.

2. Build an API layer. Introduce a gateway between the monolith and any new front-end and services that will interact with it.

3. Start with the extraction of high-value components. Begin with painful or competitive modules like search and availability, pricing engine, payments, customer profile, etc.

4. Introduce a supplier abstraction layer. Normalization of the content from GDS, NDC, and direct suppliers' integration into one internal model facilitates further integrations.

5. Go cloud-native. Containers, autoscaling, managed databases better accommodate seasonal changes and lower the costs during off-peak periods.

6. Migrate users gradually by introducing a gradual process of releasing via feature flags and canaries, comparing conversion rate and errors, and scaling up.

7. Decommission the legacy system. Decommission only after successful proving of a new system and retaining rollback options.

Build, Buy or Compose?

Rebuilds don’t necessarily mean starting from scratch any more. A lot of travel companies have started combining and blending:

 Commercial booking engines and white label solutions for efficiency and reduced upfront investment, at the cost of losing some level of uniqueness.

 Composable, API first components (search, payments, CMS, loyalty) stitched together to form their own special recipe.

 Custom build for all the critical parts which create differentiation: unique pricing, unique inventory, unique workflows.

Bottom line: Build what’s unique, buy what’s not. It doesn’t help most travel businesses differentiate themselves through unique authentication and payment processing.

Trends Worth Designing For

Regardless of your choice, take a look at the direction that the industry is going:

 More rich airline content and richer NDC (New Distribution Capabilities), allowing for more tailored offers and ancillary.

 Personalisation and conversational search, such as smarter recommendations and assistants to help plan and rebook trips, with the help of AI.

 Mobile-first and app-like web experience such as fast progressive web apps, wallet-based payments.

 Dynamic packaging and one-order models, mixing flights, stays and experiences into a single flow.

 Real-time data and analytics – pricing, merchandising and support act on demand in real-time.

 Increased privacy and security expectations, such as tokenised payments and opt-in data utilisation.

A modular, API-first architecture makes it easy to begin working with each of these without having to rebuild the app completely.

Common Mistakes to Avoid

Underestimate complexity of migrating data such as bookings, customer history, loyalty balance & supplier mapping.

 Trying to replicate too much. Focus on replicating only key features.

 Not consulting your operations teams. Your support, finance & supplier management teams will be using the back office tool. If you do not consult them during the process, it will cause issues when it goes live.

 Not running performance tests. Run tests with realistic searches and supplier lag times.

 No defined goals. Define goals for the project such as conversion rate, page speed, number of deployments, cost per booking & uptime.

Conclusion

There is no need for a travel website to be redesigned when it becomes the main barrier to growth due to an architecture, technical or business model problem. A well-timed upgrade can bring all the needed results in case a platform is just outdated. In case the travel website is still good but just a bit overwhelmed, modernize it gradually.

The best decisions can be made based on facts: measure speed of delivery, reliability, conversion, costs, align with your strategy and make the least possible step to move to a next stage. And if it is time to redesign a website anyway, do it gradually. Then, the customers will keep traveling and you will continue growing even during renovation of your base.

About Orisys Infotech: A travel technology company provides the travel portal development, tour booking portal development, Hotel booking website development, car rental website development and accommodation booking portal development.

Also Read: What Makes a Top Software Development Company in India? A Practical Guide.