For our client Zadar Water Taxi, we developed a comprehensive digital system that unifies online sales, physical distribution, validation, and centralized ticket management for water transportation services—a solution that today represents the operational core of their business, connecting users, sales points, and field staff into a single integrated unit with constant real-time data synchronization. We placed special emphasis on adapting to the tourism and maritime industry, where seasonality, high passenger flow, and work in changing weather and operational conditions demand a high level of system reliability and stability—because when a dozen buses with tourists arrive before the season starts, the system simply must work without error. The project's goal was to automate all key processes, from the user's first interaction with the service and ticket purchase, through boarding control, to detailed financial and operational reporting that gives management insight into business status at every moment.
We developed the system with the clear intention of replacing fragmented and manual processes with a unified digital solution that reduces administrative burden, increases processing speed, and enables complete business transparency—and that's exactly what we achieved. In doing so, we created a technological foundation that enables service scaling, adaptation to increased demand during the tourist season, and long-term sustainability of the business model, without ever needing to worry about whether the system will withstand the load.
Multilingual website with advanced online sales as the first point of contact
The central component of the system is a modern, responsive website available in Croatian and English, which we designed for easy use by both domestic and foreign users—because a tourist arriving in Zadar doesn't want to waste time on complicated procedures, but wants to quickly book transportation and continue enjoying their vacation. We designed the website with emphasis on information clarity, loading speed, and purchase process reliability, which is crucial in the context of tourism services where users often make decisions in a short time and on mobile devices. We simplified the entire ticket purchase process into a few logical steps that guide the user from selecting the line, date, and number of passengers, through entering basic information, to secure online payment by credit card—all in one place, without redirecting to external platforms.
After a successful purchase, the system automatically generates a digital ticket in PDF format that is delivered to the user's email address, and each ticket contains a unique QR code for digital validation during boarding. This completely eliminated the need for classic paper tickets and manual checks, significantly speeding up passenger flow and reducing crowds at boarding points—especially during peak season periods when every second counts. We adapted the user interface design to all types of devices, including smartphones and tablets, so that ticket purchase is equally simple whether the user is on a computer at home or on a mobile phone while already walking along the waterfront.
Web application for ticket issuance and thermal printing in the field
Alongside the user-oriented website, we developed an internal web application intended for operators and cashiers working at physical sales points—because not all user processes are digital, and even those that are must be supported in the field. This application enables real-time ticket issuance, line and departure management, entry and review of passenger data, and direct ticket printing on thermal printers, ensuring that sales points can function completely independently but in full synchronization with online sales. We adapted the system for work under increased load conditions, where processing speed and ease of use are key for smooth operation—we developed the application's user interface with a focus on efficiency and clarity, so that staff can quickly perform tasks without additional explanations or complex procedures. This approach minimizes the possibility of errors, speeds up work at sales points, and enables reliable ticket issuance even in situations with a large number of passengers in a short time period—for example, when a group of about fifty people arrives just before departure and purchases all tickets on the spot.
Mobile application for digital ticket control via QR code
For ticket control needs during boarding, we developed a dedicated mobile application that enables fast and precise scanning of QR codes from both digital and printed tickets—because at the moment of boarding, there's no time for entering codes or manual checks. The application is intended for staff managing passenger boarding and is designed for use in dynamic field working conditions, where sun, wind, and crowds are everyday occurrences. Each scan triggers an immediate validity check of the ticket in the central system, with a clear visual display of status—ticket valid, already used, expired, or unknown—completely eliminating the possibility of misinterpretation or letting invalid tickets through. We paid special attention to user interface design to make the control process fast, intuitive, and unambiguous, and after each validation, data is automatically synchronized with the main database, ensuring complete record accuracy and preventing multiple use of the same ticket—which is one of the key challenges in transportation services.
Cashier module for reporting and data-driven business management
An integral part of the system is an advanced cashier module that enables detailed sales and financial indicator tracking in ways that weren't previously possible without extensive manual data processing. Through this module, it's possible to generate daily, weekly, and monthly ticket sales reports, analyze traffic by individual lines, track passenger numbers and total revenue, and gain a clear overview of business results in real time—allowing management to immediately see which lines are performing best, where to increase capacity, and how business is developing day by day. Centralized reporting enables transparent business management and reduces the need for manual data processing, while the availability of accurate and up-to-date information enables decision-making based on real data, resource allocation optimization, and capacity planning in line with demand. In this way, the digital system serves not only as an operational tool but becomes the foundation for strategic management and further development of water transportation services in a tourism environment—because when you know exactly what's happening, you can also know exactly what needs to change.
Prolink's approach to developing complex digital systems for transportation and tourism
At Prolink, we approach the development of such systems systematically and with understanding of the specific challenges that transportation and tourism industries bring—we don't just develop software, but solutions that become the operational backbone of the business and that clients can rely on at every moment. Through years of work on various projects, we've developed a deep understanding of the requirements that such systems must meet—from reliability that means zero tolerance for errors during the season, to scalability that enables the system to effortlessly follow business growth year after year. For Zadar Water Taxi, we didn't just deliver technology—we delivered peace of mind, because today their staff can do their jobs without worrying about whether the system will withstand the load, whether tickets will be duplicated, or whether reports will be accurate.
A complete digital solution connecting all parts of the business
The ticket sales system for Zadar Water Taxi today is an example of how a well-designed digital solution can transform a traditional service into modern, efficient, and scalable business operations—from a website that sells tickets 24 hours a day, through field applications that speed up staff work, to reports that give management complete control over the business. If you're also considering digitalizing your transportation, tourism, or any other services—whether it's ticket sales, appointment management, or complex reservation systems—we're here to discuss the approach and scope that best suit your specific needs and goals. Our team combines technical expertise and industry understanding to develop solutions that not only solve today's problems but create a foundation for tomorrow's growth—because a good system isn't an expense, but an investment that returns through more satisfied users, more efficient staff, and a business that can grow without limitations.