Modernize Legacy Digital Infrastructure to Support Business Growth
Key Points
- Lower total cost of ownership. Legacy maintenance costs rise 15 to 25% annually on average, and consolidating onto one modern platform has helped organizations cut operational costs by as much as 30%.
- No rip-and-replace risk. A modular, extensible architecture means existing technology stays in place while new experiences get built on top of it.
- Faster time to market. Organizations that modernize incrementally rather than undertaking a full replatform have reported go-to-market speeds more than twice as fast as before.
- Security and continuity that carry over, not get rebuilt. Identity, access, and permissions integrate alongside the modernization effort itself, so upgrading doesn't mean starting governance over from zero.
Your legacy systems still run the business, which is exactly why replacing them all at once is too risky to consider. Liferay DXP lets you modernize on your own timeline: keep what works, wrap what doesn't, and migrate only what's actually worth moving.
Is This You?
- Nobody can give you a straight, realistic answer on how long a modernization project will actually take, and the last “aggressive but doable” timeline you were quoted wasn't either.
- The current system works, mostly, but it gets more expensive to keep running every year, and it's getting harder to find people who actually know how to maintain it.
- You've seen a rebuild stall halfway through, leaving core systems in a worse spot than before it started.
- Whatever happens next needs to happen without shutting the business down for a weekend, a quarter, or anything in between.
If any of that sounds familiar, you're not alone. Modernizing legacy infrastructure to support growth is one of the two most common goals we hear from enterprise teams, right alongside connecting siloed applications into one platform.
What Is Legacy System Modernization?
Legacy system modernization is not the same thing as legacy system migration, and the difference matters. Migration means moving data, content, and logic out of an old system and into a new one, all at once or close to it. Modernization means upgrading the experience, the integrations, and the parts that actually need to change, while the legacy system keeps doing what it already does well.
In practice, this usually works best as two steps. First, solve a specific, visible problem, an outdated UI, a system that can't keep up, without disrupting everything around it. Second, once that's proven out, use integration to turn the legacy system into a system of record: a reliable source of data and logic that newer experiences can build on, rather than something that has to be ripped out to make progress.
That sequence, fix the visible problem first, then extend rather than replace, is what the rest of this page walks through.
How Liferay DXP Solves It
Step 1: Map What You're Migrating
Before anything moves, you need a clear-eyed answer on what actually has to move.
Migration Path for Pages, Templates, and Assets
Liferay provides a defined path and tooling for migrating pages, templates, components, assets, and metadata, so a move off an old CMS or portal starts with a plan instead of a guess.
Decide What to Keep, Wrap, or Retire
Not everything needs to migrate. Liferay's micro-frontends and headless APIs can "wrap" a modern experience around a legacy backend, so the parts that still work keep running undisturbed while only the parts that need to change actually change.
A Baseline Before You Start
Understanding what's actually running today, including the undocumented integrations most legacy environments accumulate, is what turns "unknown unknowns" into a manageable, scoped project instead of a mid-migration surprise.
Step 2: Choose Your Cutover, Phased Not Big-Bang
A single, risky cutover isn't the only way to modernize, and for most organizations it isn't the right one.
A Phased Migration Roadmap
Move pages, templates, and assets in stages instead of one all-at-once switch, so a problem in phase two doesn't put everything from phase one at risk too.
Modular, Incremental Architecture
Liferay Objects and Client Extensions let you decouple functionality piece by piece and gradually retire legacy components, instead of committing to a full rebuild before you see any return.
Modernize Without Migrating at All, Where It Makes Sense
For systems where migration itself is the highest-risk option, a portal layer can sit on top of the legacy system as-is, unifying the experience without touching the underlying data or process.
Step 3: Keep the Business Running While You Modernize
The whole point of modernizing is to support the business, not interrupt it.
Legacy Systems Stay Live as Systems of Record
Broad protocol support, SOAP, REST, GraphQL, and proprietary APIs, means legacy systems can keep running and keep serving data while a modern experience is built on top, instead of going offline during the transition.
Deploy on Your Own Terms
SaaS, PaaS, or self-hosted, Liferay meets you wherever you are in your cloud journey, so the infrastructure side of modernization doesn't force a timeline you didn't choose.
Identity and Access Carry Over
SSO, LDAP, and SAML integrations mean users don't get logged out of their day-to-day work while the systems behind the scenes change.
Benefits of Modernizing Your Legacy Infrastructure
Lower Total Cost of Ownership
Legacy maintenance costs rise 15 to 25% annually on average, and a system costing $2.4 million in year one can climb to $3.6 million by year five. Consolidating onto one modern platform has helped organizations cut operational costs by as much as 30%.
No Rip-and-Replace Risk
A modular, extensible architecture means you don't have to choose between keeping legacy investments and moving forward. Existing technology stays in place while new experiences get built on top of it.
Faster Time to Market
Organizations that modernize incrementally rather than undertaking a full replatform have reported go-to-market speeds more than twice as fast as before.
Security and Continuity That Carry Over
Identity, access, and permissions integrate alongside the modernization effort itself, so upgrading the experience doesn't mean starting governance over from zero.
Explore Related Capabilities
Frequently Asked Questions
What does a realistic modernization timeline actually look like?
This is one of the most common questions we hear, and for good reason: unrealistic timelines are a leading cause of failed modernization projects. The honest answer depends on scope, but a phased approach, tackling the highest-impact, lowest-risk pieces first, gives you a working timeline instead of a guess, and lets you show value before the whole project is finished.
What's the migration path for our pages, templates, assets, and metadata, and what tooling helps?
Liferay provides defined tooling and a mapped path for migrating pages, templates, components, assets, and metadata, so a move off a legacy CMS or portal doesn't start from scratch.
Do we have to migrate all our legacy data, or can we modernize without replacing it?
You don't have to migrate everything. In many cases, especially for systems handling sensitive or high-volume data, wrapping a modern experience around the existing system carries less risk and cost than a full migration, while still unifying the experience for end users.
How much internal effort does this require, and what's left to manage after go-live?
Effort scales with scope, and a phased approach spreads that effort out instead of front-loading it into one high-stakes event. After go-live, ongoing effort mostly comes down to maintaining what you've built, which a modular architecture keeps lighter than maintaining a monolithic legacy system did.
Where do modernization projects most commonly stall or fail?
Most failures trace back to two things: an unrealistic timeline set before the real scope was understood, and “unknown unknowns,” undocumented legacy integrations that surface mid-project. Mapping what you're working with before you start is what prevents both.
Can we modernize incrementally, without one risky, all-at-once cutover?
Yes. A phased migration roadmap and a modular architecture mean you can modernize one piece at a time, prove value early, and adjust course based on what you learn, rather than betting the whole project on a single cutover date.
