One Mountain. Two Seasons.

What the Zugspitze taught me about IT/OT convergence and why the digital thread is the path between them.

Garmisch-Partenkirchen sits at the foot of the Bavarian Alps, about 90 kilometres south of Munich. Two towns, two identities, forced into one in 1935. Even today, Garmisch feels modern and Partenkirchen feels historic. Same district. Different character. The tension between the two is right there in the name.

That tension is familiar to anyone working in industrial digitalisation.

The Mountain Above the Town.

The Zugspitze is Germany’s highest peak. At 2,962 metres, it sits on the border between Germany and Austria. You reach the summit by cog railway or cable car. The journey takes about 40 minutes. The world you arrive in feels nothing like the one you left.

But the mountain changes completely depending on when you go.

Summer on the Zugspitze.

In summer, the mountain opens up. Hiking trails connect the peaks. Alpine lakes catch the light. The Eibsee sits below the summit, one of Bavaria’s clearest and most photographed lakes. Visitors come to walk, to breathe the air, to see the view.

This is a world of planning, visibility, and long horizons. You see where you are going. You make decisions based on what you observe. The pace is deliberate.

Winter on the Zugspitze.

In winter, the same mountain becomes Germany’s only glacier ski area. Perfectly groomed runs. Tight tolerances. Speed, precision, and real-time execution. A skier on the Zugspitze is not thinking about the view. They are responding to the terrain in front of them, making split-second adjustments, keeping the line.

The mountain does not change. The demands placed on it do.

The IT Season.

IT operates in summer mode. Product data. Business intelligence. Cloud analytics. Dashboards that show what happened, what is happening, and what should happen next.

This layer knows what to build and how well it is being built. It plans. It observes. It sets direction. But it does not run the factory.

The OT Season.

OT operates in winter mode. Real-time control. Machines executing instructions. Physical processes running to tight tolerances and tighter schedules.

This layer executes. It does not care about cloud dashboards. It cares about whether the line stops or keeps running. Every decision is immediate. Every adjustment has a consequence.

The winter mountain does not need to become the summer mountain. It needs to be connected to it.

The Digital Thread.

This is where most conversations about IT/OT convergence go wrong. People focus on the technology and forget the data.

A digital thread is a continuous, connected flow of information that runs across the entire product lifecycle. From the first design decision, through engineering, into production, and back again. Every change, every quality result, every operational insight feeds back into the same connected picture.

Without a digital thread, IT and OT stay in separate seasons. Data sits in silos. Decisions get made on incomplete information. The gap between what was designed and what gets built widens quietly over time.

With a digital thread, the mountain becomes one system. Summer informs winter. Winter improves summer.

How Siemens Builds It.

In the Siemens Xcelerator architecture, Teamcenter is the backbone of the digital thread. It holds the product data. Every design decision, every engineering change, every approved specification. It is the single source of truth for what the product should be.

Opcenter extends that thread to the shop floor. It takes the product definition from Teamcenter and translates it into production execution. Scheduling, quality management, resource allocation, process enforcement. Opcenter is where the digital thread meets physical reality.

Insights Hub closes the loop. It pulls operational data from across the factory, applies AI and advanced analytics, and turns it into decisions. Predictive maintenance. Quality forecasting. Performance optimisation. That intelligence feeds back through the thread, improving both the product design and the production process over time.

Design informs production. Production data improves design. The thread runs in both directions, across both seasons.

Why Partners Are the Missing Link.

Siemens has over 2,500 certified partners in the Xcelerator ecosystem. That number exists for a reason.

No single organisation holds deep expertise across PLM, MOM, MES, and cloud analytics all at once. The stack is too broad and too deep for one team to own completely.

The best partner models bring specialists together around a single customer outcome. A partner who understands Teamcenter and Insights Hub works alongside a partner who understands shop floor execution and Opcenter. The digital thread becomes the shared language between them.

A customer in automotive or food and beverage manufacturing does not want to manage separate relationships for their product data, their production execution, and their analytics. They want one coherent outcome. Partners who collaborate across the full Siemens architectural stack deliver that.

What This Looks Like in Practice.

Start with the customer outcome, not the technology. What decision is being made too slowly because the data is not available? What quality issue keeps recurring because the engineering system and the production system are not talking?

Find where the thread breaks. That is where the partner work begins.

Use Teamcenter to anchor the product data. Use Opcenter to execute and enforce on the shop floor. Use Insights Hub to turn operational data into intelligence. Keep the thread running in both directions.

The technology exists. The architecture is proven. What customers need are partners who have experienced both seasons on the mountain and know how to build the connection between them.

The View From the Summit.

From the top of the Zugspitze, you see 400 peaks across Germany, Austria, Switzerland, and Italy. The border between two countries runs directly across the summit. There is a German side and an Austrian side of the observation deck.

But the mountain does not know the border exists.

The divide between IT and OT is the same. It is organisational, not technical. The digital thread, running through Teamcenter, Opcenter, and Insights Hub, is designed to dissolve that border.

No single partner covers every season of the mountain. Large manufacturers need a network of partners, each bringing deep expertise in their domain, working together across the full enterprise. The digital thread only delivers its full value when the people supporting it are as connected as the systems themselves.

Summer needs winter. Winter needs summer. Customers need multiple partners who, between them, can support their whole enterprise.

About the author

Kryz Orlinski leads global partner enablement programs through Siemens Digital Industries Software Partner Academy, where his work sits at the intersection of certification strategy, partner evaluations and the operating model that connects the two. He works with sales, product, services and partner teams to translate capability goals into role-based learning paths, clear standards and practical validation.