How To Modernize Legacy UX (Without Breaking Everything)
Vitaly Friedman
Sr. UX Lead • LinkedIn Top Voice in UX
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3 people enrolled last week.
How to modernize, migrate and retire legacy — without breaking everything.
🐌 40% off – "SNAIL" (till Jun 15)
Dealing with legacy feels like fighting windmills.
It's exhausting, frustrating, and usually going nowhere. It doesn't just slow you down. It creeps into every decision, blocks good ideas, drains effort and leaves little to show for it. How do you ship good work when the system itself is working against you?
In this 4.5h-workshop, you'll learn how to untangle and overhaul legacy UX — modernize, migrate and eventually sunset it, without breaking the product along the way.
You’ll learn:
Hard truths about legacy, why it persists, hard to replace
Systems thinking, how to use it to untangle legacy
Five legacy migration strategies, how to choose the right one
Feature parity vs. outcome parity, when to innovate vs. replicate
Frankenstein dilemma: what to migrate, carry forward and cut
“Big bang” vs. incremental rollout, why both are dangerous traps
Mitigate risks of big failures, unknown unknowns, “Black Swans”
Modernization strategy: UX facades, off-ramp, the strangler fig
Migration UX for data, workflows, mental models, long-standing habits
Legacy UX research: methods that work, how to use them
What you’ll learn
A focused 4.5h deep-dive in improving UX in legacy systems, how to modernize, migrate and sunset them — applicable to your work right away.
Why legacy persists despite everyone knowing it's broken — liability but business-critical, heavy customization, switching costs
The beautiful mess: constraints, compliance, poor documentation, dependencies on 3rd-parties — all you can't control or change
Risks and spiraling costs of migration failures, retraining, severe outages and delays that put key workflows at risk
Legacy carries hard-won institutional knowledge: we can’t redesign in 10 months what was fine-tuned for 10 years
UX research on legacy, UXR methods in B2B and Enterprise, matrix of existing workflows, dependencies, frequency, severity
How to map and transfer legacy thinking and knowledge, top task analysis, workflow analysis, failure mapping
You never migrate just the UI — you migrate data, workflows, mental models, integrations, dependencies, long-standing habits.
Legacy UX overhaul: feature parity vs. outcome parity, replicate vs. rethink, Frankenstein dilemma
Migration UX: switch and transfer, retraining UX, repairing broken flows, customer-specific overrides
How to migrate and retire features and workflows, feature flags, parallel availability, essential vs. accidental complexity
Big-bang relaunch, incremental vs. parallel migration, strangler fig, upgrade + beta, off-ramp backdoor UX, dark launch, canary releases
How to attach the new system in legacy tools built around the old system — to prevent failures and outages
How to mitigate risks in legacy projects, essential vs. accidental complexity, flagging unknown unknowns, "Black Swan" scenarios
How to build alliances before you need them, pre-training and pre-onboarding, co-designing with expert users and power users
How to make work visible beyond sprint reviews, and know when to work through, route around, or let go
Workshop agenda
Legacy Mindset: Hard Truths and UX Nightmares
Why legacy is so hard to work around, and so difficult to replace. Different types of legacy, liability but business-critical, heavy customization, risk of spiraling costs, migration failures, delays.
Mapping Legacy and Systems Thinking
You can't redesign in 10 months what was fine-tuned over 10 years. How to map and transfer legacy thinking with systems thinking, top task analysis, workflow analysis, dependency mapping.
UX Research in Legacy: Methods That Work
UX Research methods for B2B and Enterprise, right-to-left thinking, failure analysis, legacy UX interviews, frequency/severity scoring — how to surface knowledge before touching anything.
☕ [Break, 15 mins] Stretch your legs!
Get your coffee, tea, water, snacks and everything in-between!
Tackling Legacy UX: Modernization + Migration
The Frankenstein dilemma: how to choose what to migrate, carry forward and cut, feature parity vs. outcome parity, replicate vs. rethink. Migrating data, workflows, mental models.
Five Migration Strategies: How to Choose the Right One
Big-bang, incremental, strangler fig, dark launch, canary releases, off-ramp backdoor UX. How to choose, when to combine — and why both big bang and incremental carry hidden traps.
☕ [Break, 15 mins] Stretch your legs!
Get your coffee, tea, water, snacks and everything in-between!
Turning On The Switch
Switch-and-transfer UX, retraining, attaching new system to established legacy flows, repairing failures, adapting for customer-specific overrides.
Overcoming Resistance and Mitigating Risks
Power users as power blockers, building alliances, pre-onboarding, co-designing with experts, essential vs. accidental complexity, Black Swan, when to work through, route around, or let go.
Wrapping Up + Q&A
Next steps, resources, books and time to answer any questions you might still have.
Learn directly from Vitaly
Vitaly Friedman
20 years of experience • Senior UX Advisor @ EU Parliament • Speaker • Smashing
Who this workshop is for
Product designers and PMs in large organizations and orgs where "we can't touch that" is the default response.
UX Leads and Service designers who want to explore a strategy to tackle and improve legacy UX in complex environments
Design managers and researchers who want to move a needle with legacy systems, without breaking everything along the way
What's included
Live sessions
Learn directly from Vitaly Friedman in a real-time, interactive format.
Lessons learned from experience
Practical insights and guidelines to apply right away.
Lifetime access
Go back to course content and recordings whenever you need to.
Community of peers
Stay accountable and share insights with like-minded professionals.
Certificate of completion
Share your new skills with your employer or on LinkedIn.
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