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Belgium 13-1-26 Squad Only Virtual english

Moving Legacy Systems to the Cloud Efficiently : Balancing cost, risk, and continuity in complex migrations

Migrating legacy systems to the cloud remains one of the toughest balancing acts in IT. Every choice affects stability, cost, and trust at once, and what starts as a modernisation effort quickly turns into a negotiation between ambition and reality. Suddenly budgets rise, dependencies appear late, and timelines tighten as old architectures collide with new expectations. In the end, success depends on sequencing, ownership, and aligning business priorities with infrastructure limits, and not only on technical readiness. Making it work requires more than a plan on paper. Knowing which systems genuinely belong in the cloud, which can wait, and which should stay put shapes the entire roadmap and defines its success. Each refactoring decision sets the level of future flexibility, but it also drives cost and risk. The trade-offs between speed, sustainability, and resilience only become clear once migration begins and pressure builds. Let’s discuss how to plan migrations that stay on track, manage hidden dependencies, and handle downtime with confidence. Let’s also discuss how governance, testing, and vendor coordination keep progress visible and credible. Are you in? A closed conversation for those who turn cloud migration from a disruption into a long-term advantage.

Belgium 20-1-26 All Members Physical english

The CIO as Investor - CIONET Belgium Annual Event

CIOs today are being judged less as technology leaders and more as portfolio managers. Every euro is under scrutiny. Boards and CFOs demand lower run costs, higher efficiency, and clear ROI from every digital initiative. Yet, they also expect CIOs to place bets on disruptive technologies that will keep the enterprise competitive in five years. This constant tension is redefining the role. In this session, we go beyond FinOps and cost reporting to tackle the strategic financial dilemmas CIOs face.

Belgium 22-1-26 Invitation Only Virtual english

AI-Driven Development: Redesigning workflows, responsibilities, and trust in the age of automation

AI coding assistants entered development teams quietly, but their impact grows by the day. What started as autocomplete now shapes architecture decisions, documentation, and testing. And when productivity gains are visible, so are new risks: security blind spots, uneven quality, and the slow erosion of shared standards. Teams move faster, but not always in the same direction. The challenge has become integration rather than adoption. And new questions have risen: how do you blend automation into established practices without losing oversight? When is human review still essential, and what should the rules of collaboration between developer and machine look like? As AI tools learn from proprietary code, where do responsibility and accountability sit? Let’s talk about how to redefine those workflows, balancing creativity with control, and protecting code quality in a hybrid human-AI environment. A closed conversation on where AI accelerates progress, where it introduces new debt, and how development culture must evolve to stay credible.

January 13, 2026 Squad Session Invitation Only Virtual english

Moving Legacy Systems to the Cloud Efficiently : Balancing cost, risk, and continuity in complex migrations

January 22, 2026 Squad Session Invitation Only Virtual english

AI-Driven Development: Redesigning workflows, responsibilities, and trust in the age of automation

January 27, 2026 Squad Session Invitation Only Physical english

Zero Trust in Reality : Making segmentation, identity, and access work in complex environments

Zero Trust sounds simple on paper: trust no one, verify everything. But once you start implementing it, the fun begins. Legacy systems, hybrid networks, and human habits don’t read the manual. The idea is solid; the execution, not so much.

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Some like it complex

What do progressive rock and jazz have to do with data integration? A great deal says Peter Tenbusch, CEO of travelbasys, a leading IT service provider in the tourism industry that offers a range of solutions for managing data, payments, and bookkeeping. Why? Because all of those things require a good deal of curiosity and openness.

Marillion, Genesis, Pink Floyd—everyone knows these famous bands and one or two of their big hits. However, things look very different when it comes to lesser-known songs. But not for Peter Tenbusch. A diehard fan like him is also enthusiastic about their multilayered, intricate, and lengthy pieces: "Art rock, progressive rock, and jazz have never intimidated me," says the CEO of travelbasys. "I always thought: So many other people like it, there must be something to it." So he dove headlong into the music, listening very closely and intently.

Pushing the boundaries

RBS now is the most important product for travelbasys, which is based in Mühlheim an der Ruhr. RBS was developed with Software AG’s Adabas & Natural and is a market-leading back-office and management system for travel agencies in Germany and Europe. The software integrates all systems and data into one seamless, automated process—from process management to reporting, bookkeeping, and archiving. Many tour operators and travel agencies throughout Europe use it.

RBS has been steadily refined over time and expanded to a back-office software package with a variety of functions, and meanwhile has also turned its focus to additional customer groups such as credit card companies and banks. "We need to keep on evolving specifically because we have been in business for so long," explains Tenbusch. "In that process, we have often pushed beyond our boundaries—and we're still doing that to this day.

The dynamic way the travel industry has changed since the advent of the internet has made that necessary. "Essentially, not a stone was left standing. The entire market has become extremely heterogenous and modular," states Tenbusch. For instance, in the past the entire industry in Germany used a single central reservation system. That has grown to five in the meantime, and more are coming. And while 30 years ago consumers generally went to a travel agency to book a flight, these days they can do that easily on their smartphone, either directly on the airline’s website or with any of the two dozen online travel providers.

"The airlines in turn maintain direct contact with customers, travel agencies, and sales channels to get out of the standardized price ranking," says Tenbusch. As a consequence, demand for online data availability in real time has risen enormously. There is a rapidly growing volume of information and a wide variety of data sources that need to be dynamically integrated with each other.

Data integration is key

In order to keep up with the pace and level of complexity while staying ahead of evolving industry standards, travelbasys needed to revolutionize its systems. The company now relies on Software AG’s webMethods and API Gateway to do the job. They enable the integration of all data silos and are establishing a central data source for real-time data processing, which travelbasys’ customers can access. webMethods provides a standardized gateway for the travelbasys systems to communicate with other systems. "It has given us a toolbox that we currently use to connect 100 different interfaces as well as import and export all possible data formats,” explains Tenbusch. "Thanks to this flexibility we can also connect customers with older systems by integrating their existing systems. And we’re up to date and ready for new customers with their new requirements and standards."

Openness and user-friendliness—it always comes down to these two maxims at travelbasys. Tenbusch elaborates: "Over time we have built up a large treasure trove of experience with normalizing and standardizing data from the travel industry and making it easily available to customers." Aside from the IT, the team's mindset is crucial: staying agile, interested, and open to new innovations and ideas. "We regularly have major projects where we need to adapt and adjust, but those are the projects where we learned and gained a great deal," he notes, adding: "That continues to make our business so interesting for me to this day."

All that remains is a request for a music tip. Mr. Tenbusch, can you name three progressive rock albums that warrant indulging in a deep dive?… Tenbusch: "There are so many, but here are four albums from recent years:

Pushing the boundaries

Data integration is key

CIONET Business Circles

Healthcare Circle

Digital Transformation is redefining the future of health care and health delivery. All stakeholders are convinced that these innovations will create value for patients, healthcare practitioners, hospitals, and governments along the patient pathway. The benefits are starting from prevention and awareness to diagnosis, treatment, short- and long-term follow-up, and ultimately survival. But how do you make sure that your working towards an architecturally sound, secure and interoperable health IT ecosystem for your hospital and avoid implementing a hodgepodge of spot solutions? How does your IT department work together with the other stakeholders, such as the doctors and other healthcare practitioners, Life Sciences companies, Tech companies, regulators and your internal governance and administrative bodies?

Telenet Business Leadership Circle

The Telenet Business Leadership Circle powered by CIONET, offers a platform where IT executives and thought leaders can meet to inspire each other and share best practices. We want to be a facilitator who helps you optimise the performance of your IT function and your business by embracing the endless opportunities that digital change brings.

Les Rencontres

Découvrez la dynamique du leadership numérique aux Rencontres de CIONET, le programme francophone exclusif de CIONET pour les leaders numériques en Belgique, rendu possible grâce au soutien et à l'engagement de nos partenaires de programme : Deloitte, Denodo et Red Hat. Rejoignez trois événements inspirants par an à Liège, Namur et en Brabant Wallon, où des CIOs et des experts numériques francophones de premier plan partagent leurs perspectives et expériences sur des thèmes d'affaires et de IT actuels. Laissez-vous inspirer et apprenez des meilleurs du secteur lors de sessions captivantes conçues spécialement pour soutenir et enrichir votre rôle en tant que CIO pair. Ne manquez pas cette opportunité de faire partie d'un réseau exceptionnel d'innovateurs numériques !

Female Leadership Circle

CIONET is committed to highlighting and celebrating female role models in IT, Tech & Digital, creating a leadership programme that empowers and elevates women within the tech industry. This initiative is dedicated to showcasing the achievements and successes of leading women, fostering an environment where female role models are recognised, and their contributions can ignite progress and inspire the next generation of women in IT. Our mission is to shine the spotlight a little brighter on female role models in IT, Tech & Digital, and to empower each other through this inner network community.