Transform EnterpriseComplexity IntoMeasurable Results
Our proven 4D Framework delivers transformation under pressure, at enterprise scale, with measurable outcomes that endure.
Trusted across industries
Why Most Transformations Stall
Enterprise transformation is littered with brilliant strategies that collapse under operational reality. Here's what we see, and why it happens.
Strategy fades after kickoff
Great slide decks. No structure behind the execution.
Compliance is added too late
Risk isn't managed — it's retrofitted. Auditors notice.
Change is delivered without ownership
People aren't aligned. Adoption is performative at best.
Tech-first ≠ transformation
Tools get installed. Nothing actually changes.
Silos win over systems
Departments protect themselves instead of moving together.
We don't fix symptoms. We build the structure that prevents failure — from day one.
Discover the 4D ApproachThe TDC 4D Operating System for Transformation
It's not just a framework. It's a strategic firewall — against wasted effort, lost trust, and fragile execution.
The 4D Framework is guided by
Structure beats inspiration
Real transformation needs architecture, not just ambition.
Accountability is architecture
Without clear ownership, change dissolves into good intentions.
Change is human, not just technical
Technology enables, but people transform.
The 4D Phases:
Built for What Transformation Really Takes
Transformation is not a project. It's a system with memory — if you build it right.
From vision to velocity — TDC delivers what transformation really takes.
4D in Action – Real Transformation, Systemically Delivered
Real organizations, measurable outcomes, sustainable results. Here's what happens when transformation is built to last.
Regulatory Readiness
Global Insurance Group
Insurance / Financial Services
?The Challenge
Outdated compliance framework ahead of Solvency II + DORA rollout. Siloed risk data. No unified controls.
AI Forecasting in FMCG
Multinational CPG Enterprise
FMCG / Manufacturing
?The Challenge
Disjointed planning across 15 OpCos led to volatility and manual workarounds.
SAP Cloud Migration
European Public Sector
Government / Utilities
?The Challenge
Mission-critical SAP replatforming under ISO 27001 & national compliance laws.
Different industries. Different constraints. One method: The TDC 4D Framework.
Leadership That Builds Under Pressure
When systems fail and stakeholders panic, most leaders retreat to reactive management. We help you lead through complexity with systematic confidence.
Governance Built-In
Compliance isn't an afterthought. We design with ISO 27001, GDPR, DORA and real-world accountability — from day one.
Architecture That Fits Reality
No templates. No "one-size". Every structure we design reflects operational noise, fragmented systems and political dynamics.
Human-Centric Execution
We don't push change. We co-own it — by aligning people before platforms, and anchoring accountability into delivery.
These aren't buzzwords. They're the foundation behind every phase of our 4D Framework.
Explore the 4D MethodBeyond Systems:A Space for Human Complexity
While frameworks provide structure, real transformation happens in the messy, beautiful complexity of human experience. We create space for both.
Where Others See Resistance, We See Wisdom
Most transformation efforts fail because they treat humans as variables in a system rather than complex beings with valid concerns, deep wisdom, and untapped potential.
Our approach honors both the need for systematic thinking and the reality that lasting change happens through human connection, understanding, and genuine care.
We don't just deliver frameworks—we create containers where people can safely explore what transformation means for them, their relationships, and their future.
"The most profound transformations happen not when we follow a perfect process, but when we create space for the perfectly imperfect human journey."— Tanja Drefke
Emotional Intelligence
We acknowledge that transformation is deeply personal and emotional, not just procedural.
Relational Dynamics
Understanding how relationships and team dynamics influence and drive transformation success.
Cognitive Complexity
Recognizing that people process change differently and need varied approaches to embrace new ways.
Individual Potential
Unlocking unique strengths and capabilities that emerge when people feel truly seen and supported.
Leadership You Can Trust
Over 25 Years of Driving Global IT Transformation
About Tanja
With over 25 years of experience in enterprise IT, Tanja Drefke has led transformation programs across industries and continents — specializing in turning complexity into streamlined, scalable solutions.
Proven Impact
Global cloud transformation across 288 sites
Automated compliance and governance framework
End-to-end SAP and AI/ML supply chain optimization
"Tanja doesn't just solve problems — she transforms entire organizations."
Let's Build Your Next Transformation — Together
Ready to move beyond quick fixes? Let's design transformation that lasts — built for your complexity, delivered with precision.