Two Goals, One Product
Different customers have individual needs. To fulfil them individually, often a large number of product variants is required. At the same time, companies aim to keep internal complexity Complexity (kəm-ˈplek-si-tē) n. In variant management, complexity reflects the effort needed to master customer variety, product variants, and their lifecycle processes. Learn its key dimensions. as low as possible.
Rarely both can be achieved to the maximum extent each.
But — it is very well possible to find a good balance between these poles.
However, it would not be well-balanced to ‘only’ reduce internal complexity. Because not all complexity is bad or useless.
For Product Development it is all the more important to understand the true range of customer needs (see below).
Thus, customer-focused Product Management must find answers to: What variety is really necessary? And which can go?
Let’s tackle the challenge and see what approaches help to balance and find the sweet spot!
How to Find the Sweet Spot
Understand the True Variety of Your Customers Demands
If you don’t understand real customer needs, and their true variety, you either miss the mark (over-engineering) — and thus create unnecessary variant complexity!
Or you keep your own complexity lean, but end up with a product that the customer doesn’t really want.
That’s why a good ‘navigator’ in product management is very important. He is the one who listens to the customer. Translates the customer’s needs into the language of development.
And thus ensures that the customer is understood and the internal complexity is kept under control.
Modularise the Product Architecture and Define Interfaces
Modularity Modularisation (ˌmä-jə-lə-rə-ˈzā-shən) n. Modularisation decomposes a product into modules with standardised interfaces — enabling systematic variant management and controlled product variety. is your best friend when managing variants.
Why? Because it lets you separate what must be flexible from what can stay stable. If you design your product in modules — with well-defined interfaces — you can swap out what needs to change, without touching the rest.
That’s how you keep complexity local, not global.
But modularity is not a silver bullet. It requires discipline: clear rules for interfaces, strict versioning, and a willingness to say “no” to special solutions.
The goal: enable variety where it matters, but keep the core as stable as possible. So, invest time in defining modules and their interfaces. The payoff: you can offer the variants your customers want — without drowning in complexity.
Optimise Supply Chain for Flexibility and Variant Suitability
Your supply chain and manufacturing are right at the heart of variant management.
If your processes can’t handle variants efficiently, even the smartest product architecture will struggle in practice.
The key: design your manufacturing and logistics to be as flexible as your product. Standardise wherever possible (materials, processes, work steps) but build in the ability to switch quickly between variants. Use clear rules for variant handling, so everyone knows what to do when a customer order comes in.
Close coordination between engineering, production, and logistics is essential. Everyone needs to understand the impact of new variants — not just on the product, but on every step from order to delivery.
Enable Your Organization to Deal with Variants
Even the best product architecture is useless if your organization isn’t ready for variants.
People need to understand why variety matters — and where it doesn’t. Training is key. Make sure everyone, from engineering to sales, knows the variant logic.
Define clear processes: how to request a new variant, how to decide if it’s worth it, how to retire old ones.
And don’t forget: variant management Variant Management (ˈver-ē-ənt ˈma-nij-mənt) n. Variant management: offering individual customers the best fitting solution with minimum internal complexity — a cross-sectional discipline, not a framework. is a team sport. Encourage collaboration across functions. Create a culture where complexity is managed, not feared.
The result: fewer mistakes, faster decisions, and a product portfolio that makes sense — for you and your customers.
Empower PLM and IT Toolchain to Be Variant Aware
Your PLM Product Lifecycle Management (PLM) (ˈprä-dəkt ˈlīf-ˌsī-kəl ˈma-nij-mənt) n. PLM (Product Lifecycle Management) manages product data, processes, and decisions across the full lifecycle — from design through manufacturing, service, and end of life. and IT systems shouldn’t just document individual variants — they should help you define, manage, and verify the entire variant space Variant Space (ˈver-ē-ənt ˈspās) n. A variant space is the complete set of all valid product variants that can be derived from a product family, defined by its variation points and the constraints between them. .
According to the variety of customer demands (see Approach 01).
Because it’s not (just) about tracking every single configuration, but about making sure the logic and rules behind your variant portfolio are clear, robust, and up to date.
Modern toolchains enable sales automation Sales Automation (ˈsālz ˌȯ-tə-ˈmā-shən) n. Sales automation in variant management streamlines the sales process for configurable products — from guided configuration through pricing, quoting, and order handover. and design automation Design Automation (di-ˈzīn ˌȯ-tə-ˈmā-shən) n. Design automation uses rules and algorithms to generate CAD, CAE, and CAM outputs for product variants automatically, reducing manual effort in engineering. for variant-rich products. Ensuring that customer requirements flow seamlessly from the first interaction, like a webshop 3D-configurator, all the way to production.
The backbone of this flexibility is often a 150% BOM 150% BOM (ˌwən-ˌfif-tē pər-ˈsent ˌbil əv mə-ˈtir-ē-əlz) n. A 150% BOM lists all possible components across all product variants, serving as the master structure for subtractive configuration in variant management. : a master bill of materials that includes all possible options, from which valid variants are derived automatically. The right tools let you map out the full range of possible combinations, check for conflicts, and ensure only valid variants make it to production.
When your IT landscape is variant-aware, you gain control over complexity — without losing flexibility. In the end, a well-configured toolchain means fewer errors, faster response to customer needs, and the confidence that your variant offering is both feasible and under control.
Setting up such a toolchain is rarely straightforward. It is highly recommended to involve variant-aware IT experts in this process. Their experience is crucial for translating variant management requirements into robust system architectures, avoiding common pitfalls, and ensuring that your IT landscape can truly support your business goals.
Frequently Asked Questions
What is the clash of goals in variant management?
The clash of goals in variant management describes the fundamental tension between two opposing forces: customers want products tailored to their individual needs, which drives up the number of variants. At the same time, companies want to keep internal complexity low to remain efficient and profitable. Both goals are legitimate, but they pull in opposite directions. The challenge of variant management is to find a balance — offering meaningful variety externally while controlling complexity internally.
How can companies balance individual customer demands with internal complexity?
The most effective approach combines five levers: understanding the true range of customer needs (not assumed needs), designing a modular product architecture with well-defined interfaces, making the supply chain and manufacturing flexible enough to handle variants efficiently, building an organization where everyone understands variant logic, and deploying PLM and IT systems that are variant-aware. No single lever is sufficient on its own — the sweet spot emerges from applying all five in combination.
Why is modular product architecture so important for variant management?
Modular product architecture is the foundation of manageable variety. By dividing a product into modules with clearly defined interfaces, companies can change what needs to change — customer-facing features, performance levels, configurations — without affecting the stable core. Complexity stays local rather than global. The result: a broad range of product variants for customers, but a manageable number of distinct components internally. Without modularity, every new customer requirement tends to create a cascade of changes across the entire product.
How do you make a supply chain variant-aware?
A variant-aware supply chain is one designed around flexibility rather than just efficiency. This means standardising materials, processes, and work steps wherever possible while building in the ability to switch quickly between variants when a customer order arrives. It requires clear rules for variant handling at every step — from order entry to delivery — and close coordination between engineering, production, and logistics. Everyone in the chain needs to understand not just their own task, but the downstream impact of variant decisions they make.
What does it mean for PLM to be variant-aware?
A variant-aware PLM system goes beyond documenting individual product configurations. It stores the logic and rules behind the entire variant portfolio — which combinations are valid, which are forbidden, and why. It connects upstream customer requirements to downstream production, ideally enabling sales automation and design automation for variant-rich products. The backbone is typically a 150% BOM: a master bill of materials that includes all possible options, from which valid variants are derived automatically. A variant-aware PLM gives companies control over complexity without sacrificing flexibility.
Is reducing complexity always the right goal in variant management?
No — and this is one of the most common misconceptions. Not all complexity is bad or useless. Some complexity directly reflects real customer needs and creates genuine value. The goal of variant management is not to minimise variants at all costs, but to eliminate unnecessary complexity while preserving the variety that customers actually want. This requires a clear understanding of true customer demands first. Cutting variants without this understanding risks ending up with a lean product portfolio that no longer fits the market.