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Connect. Curate. Comprehend: Unlocking Value Beyond Boundaries
TCS helps businesses unlock value by enhancing digital experiences with AI and cloud technologies, driving sustainability and seamless connectivity. Learn how.
Related Insights
Explore how TCS helped TDC Net use human-in-the-loop AI approach for legacy modernization, preserving knowledge, reducing risk, and accelerating transformation.
Customer Testimonial
10 Jun 2026
In the assessment, the Everest Group cited TCS’ market impact, IP-led delivery, and AI-powered software product engineering capabilities as its strengths.
Analyst Reports
04 Jun 2026
With advanced and generative AI, GCCs have become innovation and research and development powerhouses driving operations transformation and long-term value.
White Paper
05 Jun 2026
TDC Net modernizes legacy operations with AI-led transformation with TCS
Campbell Fraser, CTO, and Astrid Cahill, VP- AI & Digital Innovation at TDC Net, share how they partnered with TCS to modernise complex legacy systems using a human‑in‑the‑loop AI approach, preserving business‑critical knowledge, de‑risking operations, and accelerating transformation from years to months.
HIGHLIGHTS
- TDC Net partnered with TCS to address growing operational risks arising from decades old legacy systems supporting critical telecom operations.
- Using an AI assisted, human-in-the-loop approach, TDC Net and TCS modernised and decommissioned legacy applications while preserving undocumented business logic critical to daily operations.
- The transformation reduced modernisation timelines from years to months and enabled the migration and stabilisation of hundreds of data and integration jobs.
- Human oversight, quality validation, and close collaboration between TDC Net and TCS teams ensured safe and reliable outcomes in a high-stakes production environment.
TDC Net partnered with TCS to mitigate operational and knowledge risks posed by decades‑old legacy systems using a human‑in‑the‑loop AI approach.
TDC Net operates critical national telecom infrastructure that supports millions of daily interactions across Denmark. Over time, many of the systems underpinning these operations had become increasingly complex, customised, and undocumented, thereby creating significant operational risk. Much of the knowledge required to maintain and evolve these systems existed only with the original developers, many of whom were no longer available.
Recognising the need to modernise without disrupting business continuity, TDC Net partnered with TCS as a transformation partner. The objective was not only to migrate technology, but also to interpret, preserve, and document critical business logic embedded within legacy applications supporting integrations, analytics, and technician dispatch workflows.
Together, TDC Net and TCS adopted an AI-led approach guided by strong human oversight. Engineers from both organisations worked side by side with AI models to analyse legacy code, validate outputs, and ensure accuracy through rigorous quality checks. This human-in-the-loop approach enabled TDC Net to accelerate while maintaining control, reliability, and accountability across high-stakes systems.
Swipe LeftSwipe RightTCS is a fundamental partner for us. We’re now working in a much more collaborative mode that allows us to leverage the best of TCS, while taking ownership and accountability for the outcomes. That makes the relationship truly symbiotic.
Campbell Fraser
Chief Technology Officer, TDC Net
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