Modernizing Legacy Systems That Work
Don’t let outdated tech hold you back. Explore effective ways to upgrade legacy systems without the headache.
Legacy systems. They’re the backbone of many businesses. Dependable. Familiar. But, at some point, they become outdated. And when they do, modernizing them without disrupting operations can feel like walking a tightrope. Yet, it's necessary. Because clinging to the old for too long can leave your business vulnerable to inefficiencies, security risks, and missed opportunities.
At 1985, we’ve seen this countless times. Clients come to us with systems that have been running for decades. They work—kind of. But the cracks are showing. Modernizing isn’t just a tech decision; it’s a business strategy. And getting it right is all about balance.
Here’s how to tackle it.

Why Modernize At All?
Let’s address the elephant in the room: Why fix something that isn’t broken? The short answer: it’s more broken than you think.

Aging Tech Creates Hidden Costs
Sure, your legacy system is functional. But at what cost? Aging systems come with higher maintenance expenses, limited scalability, and a dwindling pool of developers familiar with the tech. These hidden costs sneak into your budget over time, eating away at profitability.
For example:

The Competition Is Moving Forward
Your competitors are modernizing. And they’re reaping the benefits: faster systems, better user experiences, and lower operational costs. Falling behind doesn’t just hurt your bottom line. It makes you less competitive in the long run.

Challenges of Modernization
Let’s not sugarcoat it: modernizing legacy systems is hard. It’s like renovating an old house while still living in it. Challenges abound, and knowing them upfront helps you plan better.
Business Continuity Risks
You can’t shut down a mission-critical system for weeks to overhaul it. That’s a non-starter. For many organizations, even a few hours of downtime can result in lost revenue and customer trust.
Data Migration Complexities
Legacy systems often house decades of data. Migrating this data to a new platform isn’t as simple as a copy-paste. There are format mismatches, redundancies, and compliance issues to tackle.
Resistance to Change
Let’s face it: people resist change. Employees familiar with the old system may feel frustrated or overwhelmed by the prospect of learning something new. It’s a human issue, not just a tech one.
Budget Constraints
Modernization can be expensive. Convincing stakeholders to greenlight a major budget allocation requires a compelling business case. Balancing cost, scope, and timelines is a delicate act.

Practical Approaches to Modernization
There’s no one-size-fits-all solution for modernizing legacy systems. But there are proven strategies that can guide the process.
1. Start with an Assessment
Before diving in, take a step back. Understand what you’re working with. Perform a thorough assessment of your current system:
- Inventory: What hardware, software, and processes rely on the legacy system?
- Dependencies: Which systems, teams, or customers are affected by potential changes?
- Pain Points: What’s not working well? What’s holding the business back?
This phase is crucial. It’s where you identify opportunities for quick wins and potential risks to mitigate.

2. Choose the Right Modernization Path
Not all modernization efforts require a complete overhaul. Sometimes, incremental changes deliver significant results. Here are three common approaches:

Rehost (Lift and Shift)
This is the simplest path. You move the existing system to a modern infrastructure, like the cloud, without making major changes to the code. It’s fast and cost-effective, but it doesn’t solve deeper issues like outdated architecture.
Refactor
In this approach, you tweak and optimize the existing code to work better on modern platforms. It’s a middle ground: more work than rehosting but less disruptive than rebuilding.
Rebuild
This is the nuclear option. You start from scratch and build a new system that meets today’s needs. It’s costly and time-consuming but often delivers the best long-term results.

3. Prioritize Business Continuity
Downtime isn’t an option. Plan for a phased rollout to minimize disruptions. This might involve running the legacy system and the modernized system in parallel for a while. Think of it as a safety net while you iron out the kinks.
For instance, when migrating data, start with non-critical information. Test thoroughly before moving sensitive or mission-critical data. Rollbacks should be part of the plan, not an afterthought.

4. Involve Stakeholders Early
Modernization isn’t just a tech initiative. It’s a business initiative. Involve key stakeholders from the start:
- Executives: Secure buy-in by highlighting the strategic value.
- End-Users: Understand their needs and get their input on user experience improvements.
- IT Team: Leverage their expertise to identify potential challenges and solutions.
5. Invest in Change Management
Change is hard. Make it easier with a strong change management strategy:
- Training: Offer comprehensive training for employees to get comfortable with the new system.
- Support: Provide ongoing support during and after the transition.
- Communication: Keep everyone informed about timelines, milestones, and progress.

Tools and Technologies That Help
Modernizing legacy systems is easier with the right tools. Here are some technologies worth considering:

Cloud Platforms
Migrating to the cloud offers scalability, cost savings, and enhanced security. Providers like AWS, Azure, and Google Cloud offer tools specifically designed for legacy system migration.
Containerization
Technologies like Docker and Kubernetes allow you to package applications and their dependencies into containers. This simplifies deployment and improves scalability.
APIs and Microservices
Instead of overhauling an entire monolithic system, consider breaking it into smaller, manageable components using APIs and microservices. This approach allows incremental modernization.
Automation Tools
Tools like Ansible, Terraform, and Jenkins can automate repetitive tasks, speeding up the modernization process and reducing human error.
Real-World Example
One of our clients at 1985 was a logistics company running a 20-year-old system. It worked fine for basic operations but couldn’t handle new demands like real-time tracking and API integrations.

Here’s what we did:
- Assessment: Identified that their main pain point was scalability.
- Refactor: Updated critical components to work with a cloud-based platform.
- Parallel Run: Deployed the new system alongside the old one to ensure smooth data migration.
- Training: Provided workshops for staff to adapt to the new system.
The result? A 30% reduction in operational costs and a significant improvement in customer satisfaction.
Recap
Modernizing legacy systems isn’t easy. But it’s necessary. With the right strategy, you can update your systems without disrupting business operations. Start small, plan thoroughly, and always prioritize continuity.
At 1985, we specialize in helping businesses modernize their systems. If you’re ready to tackle your legacy challenges, let’s talk.
Your legacy systems served you well. But it’s time for an upgrade. The future won’t wait.