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Can continuous modernization prevent tech debt?

When was the last time your development team proposed a major software modernization project?

If it feels like you’re always either planning one, executing one, or recovering from one, the true problem may lie in your approach to modernization.

Most organizations discover their technical debt only after it’s metastasized: when security vulnerabilities force urgent patches, when critical dependencies reach end-of-life, or when talented developers refuse to work on outdated tech stacks. By then, what started as deferred maintenance has ballooned into a protracted six-figure overhaul.

Is adopting a Continuous Modernization (CM) approach the only surefire way to prevent an avalanche of technical debt?

What is Continuous Modernization?

Continuous Modernization is a proactive software maintenance strategy that systematically updates your proprietary applications, APIs, and internal software components as part of your regular development workflow. Rather than allowing dependencies to age until they require massive overhaul projects, CM integrates incremental updates directly into your existing DevOps processes.

Continuous Modernization is a natural extension of CI/CD practices. Just as Continuous Integration and Continuous Deployment automate testing and releases, Continuous Modernization automates the process of keeping your technology stack current with the latest versions of databases, frameworks, SDKs, and third-party libraries.

The hidden cost of deferred updates

Here’s a scenario that plays out repeatedly across enterprise IT departments: an application launches successfully with modern dependencies. Development teams move on to new projects. Months pass, then years. Meanwhile, that once-current application quietly falls behind. What begins as a minor version lag – perhaps staying on an older database driver or postponing a framework update – compounds over time. Before long, your “stable” application is running on unsupported software versions with known security vulnerabilities and compatibility issues.

When the gap becomes too wide to ignore, you’re forced to launch a major modernization initiative. Development resources that should be building revenue-generating features instead get redirected to upgrade work that delivers no visible value to stakeholders. The maintenance burden that was once manageable has transformed into an expensive, high-risk project.

McKinsey finds that technical debt accounts for roughly 40% of IT balance sheets – and adds 10-20% to the costs of any given IT project.

How Continuous Modernization prevents tech debt accumulation

Continuous Modernization flips this reactive approach on its head. Instead of waiting until upgrades become emergencies, organizations establish automated pipelines that handle updates incrementally and continuously.

The process works by running parallel upgrade tracks alongside your standard development workflow. When new versions of dependencies become available, they’re automatically tested against your codebase in isolated environments. Issues are identified early when they’re still small and manageable, rather than discovering compatibility problems years later when dozens of dependencies demand simultaneous updates.

This approach delivers several key advantages:

Smaller, manageable changes: Updating one or two dependencies at a time is significantly less risky than upgrading an entire stack simultaneously. Each change can be thoroughly tested and validated before moving forward.

Reduced upgrade complexity: When applications stay relatively current, upgrade paths remain straightforward. The documentation and community support for recent version transitions is robust, and breaking changes are well documented.

Lower resource requirements: Small, regular updates require far less time and effort than infrequent, massive overhauls that grind productivity to a halt. Teams can handle modernization work within normal cycles rather than requiring dedicated projects.

Improved security posture: Security patches and vulnerability fixes get applied promptly rather than languishing in a backlog of deferred maintenance work.

Better developer experience: Engineers spend less time wrestling with legacy technology and more time working with modern tools and patterns.

Implementing Continuous Modernization in your DevOps pipeline

Successful adoption of Continuous Modernization requires proactive, systematic processes and the right tooling. Here’s how mature CM practices typically integrate with existing workflows:

Automated upgrade branches

Continuous Modernization pipelines operate in dedicated upgrade branches, isolated from your main development codebase. This isolation is critical: it allows upgrade processes to run without any risk to production code or active development work.

When new software versions become available, automated systems pull your latest source code into upgrade branches and apply the necessary updates. This happens continuously in the background while your team continues normal development activities.

Integration with existing CI/CD testing

After upgrades are applied in the isolated branch, your standard regression test suites run automatically. This leverages all the testing infrastructure you’ve already built – unit tests, integration tests, end-to-end tests, and performance benchmarks.

If tests pass, the upgrade branch can be merged back into your main development line. If tests fail, the issues are logged, tracked, and remediated before any code reaches production.

Customizable upgrade rules

Every application and organization has unique requirements. An effective Continuous Modernization platform allows teams to customize the upgrade process. This usually means defining which dependencies to prioritize, establishing version constraints, specifying breaking change policies, and setting approval workflows.

These rules ensure the modernization process aligns with your organization’s risk tolerance and change management practices.

The business case for Continuous Modernization

While Continuous Modernization is fundamentally a technical practice, it delivers measurable business value:

Predictable maintenance costs: Regular, small updates cost less and are more predictable than emergency modernization projects. Finance teams appreciate the ability to budget for steady-state maintenance rather than lumpy capital investments.

Faster time-to-market: In one study, Stripe found that developers spend an average of 13.5 hours per week addressing technical debt, translating to 33% of their time spent on maintenance rather than shipping new features. When technical debt is kept under control, development teams spend more time shipping features and less time fighting antiquated tooling.

Reduced risk: Large-scale modernization projects are inherently risky: they touch many parts of the system simultaneously and often require extended testing periods. Continuous Modernization distributes that risk across many smaller, less risky changes.

Extended application lifespan: Custom applications represent significant investments. Continuous Modernization helps organizations maximize the return on those investments by keeping systems viable longer without requiring costly rewrites.

Getting started with Continuous Modernization

If your organization is dealing with aging custom applications, mounting technical debt, or expensive modernization cycles, it’s time to consider a Continuous Modernization approach.

Start by identifying applications that are critical to operations but beginning to show their age. Look for systems where dependencies are more than a few versions behind, security patches are piling up, or it’s becoming difficult to find engineers willing to work on outdated tech stacks.

These applications are ideal candidates for implementing Continuous Modernization pipelines. With the right platform and processes in place, you can transform them from growing liabilities into well-maintained, modern assets.

The shift to Continuous Modernization doesn’t happen overnight, but the investment pays dividends. Organizations that adopt CM spend less time in crisis mode and more time delivering value. They maintain more secure, stable, and sustainable application portfolios. And they position themselves to take advantage of new technologies and capabilities as they emerge, rather than being held back by ever-snowballing legacy technical debt.

Continuous Modernization FAQ

What types of applications benefit most from Continuous Modernization?

Continuous Modernization is most valuable for business-critical custom applications that you plan to maintain long-term. This includes internal enterprise applications, customer-facing APIs, and proprietary platforms that are actively used but not under constant feature development.

How is Continuous Modernization different from regular software maintenance?

Traditional software maintenance is reactive: teams address issues as they arise or tackle updates when they become urgent. Continuous Modernization is proactive and systematic, establishing automated processes that continuously evaluate and apply updates before they become problems. It’s the difference between regularly rotating your tires and changing your oil versus waiting until your car breaks down.

Does Continuous Modernization work with legacy applications?

Yes, although implementing Continuous Modernization for legacy applications may require some initial setup work. The first step typically involves getting the application into source control (if it isn’t already), establishing basic automated testing, and documenting dependencies. Once these foundations are in place, Continuous Modernization processes can be applied even to older systems. In fact, legacy applications stand to benefit the most from CM adoption since they typically carry the most technical debt.

How much does Continuous Modernization cost compared to periodic modernization projects?

While Continuous Modernization requires ongoing investment in tooling and processes, organizations typically find that regular, incremental updates cost significantly less than periodic, large-scale modernization initiatives – both in direct expenses and in the opportunity cost of stretched resources and delayed features. Additionally, costs become more predictable and can be budgeted as operational expenses rather than unpredictable capital projects.

Will Continuous Modernization break our applications?

When properly implemented, Continuous Modernization actually reduces the risk of breakage. In Synchrony Systems’ Modernization Lifecycle Platform (MLP), updates happen in isolated branches and go through full regression testing before merging. Issues are caught early when they’re easier to fix. Compare this to letting dependencies age for years and then attempting a massive update – the latter scenario is far more likely to cause unexpected problems.

How long does Continuous Modernization take?

By proactively performing regular, incremental updates, organizations avoid the need for painful, expensive “big bang” modernization projects. With Continuous Modernization, modernization cycles usually occur four times per year and take approximately 2-4 weeks. This includes automated dependency updates, code transformations, and full regression testing.

Can Continuous Modernization handle breaking changes in dependencies?

Yes. Sophisticated Continuous Modernization platforms can apply transformation rules to adapt code when dependencies introduce breaking changes. For complex breaking changes that require architectural decisions, the process pauses for human review and input. Teams can also establish policies around accepting major version updates versus sticking with minor and patch releases.

What happens when an update fails testing?

When an automated update fails regression testing, the issue is logged and tracked just like any other bug. The upgrade stays in the isolated branch and your main codebase is unaffected. Teams can investigate the failure, adjust upgrade rules if needed, or decide to skip that particular version and wait for the next release. This failure-and-remediation cycle happens safely, away from production code.

Do we need special tools to implement Continuous Modernization?

While you can cobble together Continuous Modernization processes using standard CI/CD tools and custom scripting, specialized platforms designed for Continuous Modernization – like Synchrony’s Modernization Lifecycle Platform – make the process significantly more efficient and reliable. These platforms provide pre-built upgrade rules, customizable workflows, and integration with existing DevOps toolchains.

How does Continuous Modernization fit with our existing CI/CD pipeline?

Continuous Modernization runs parallel to your standard CI/CD pipeline rather than replacing it. Upgrade branches feed into your existing testing and deployment infrastructure. Most organizations find that Continuous Modernization enhances their DevOps practices rather than conflicting with them, adding another dimension of automation and reliability to their software delivery process.

Modernization Experience Report: Smalltalk Application Portfolio to Java

In-depth experience report shares how one company saved seven years by modernizing a portfolio of Smalltalk applications to Java with Synchrony Systems

Six Smalltalk applications to Java. The company estimated it would take another ten years to complete the portfolio modernization and retire Smalltalk altogether.

This experience report goes behind the scenes to expose the unique three-year collaboration between Synchrony and a German IT services provider for the financial sector.

This in-depth report is available for limited release to companies interested in understanding the details of modernizing large, legacy applications.

Experience Report Table of Contents:

Company
Project background
Modernization initiative (Challenges, Requirements, Vendor selection)
Synchrony Solutions (Smalltalk Migration Technology (SMT), Modernization Lifecycle Platform (MLP))
Modernization engagement
- Readiness phase (Application portfolio, Work breakdown, Team collaboration, Project timeline)
- Implementation phase (Splitting the work, Progress of parallel tracks, Progress of the entire project, Halfway point evaluation, Functional testing, Code quality, Integration testing, Final deliverable
- Conclusions and take-a-ways
Appendix (Codebase, Pipelines, Operations, KB and CL, Issues, Deliveries, Datapoints)

Government IT modernization RFP guide

As businesses and consumers rapidly advance in their use of cloud, mobile, and web 2.0 technologies, governments, and sectors such as energy are navigating their own IT modernization initiatives. They have a precarious balancing act of embracing digital strategies and mobile initiatives to serve the people while safeguarding sensitive information and using technology in smart, secure, and affordable ways.

Maintaining legacy systems is expensive. Over the last decade, the U.S. federal government spent roughly 75-80% of its IT budget on the operation and maintenance of its outdated legacy systems. Recently the U.S. Office of Management and Budget (OMB) has codified IT modernization as a key objective and is working closely with participating agencies to establish funds that can help replace legacy IT systems and produce modern IT equipment and services.

The U.S. federal government is not alone. U.S. state and local governments and governments around the globe are also striving to serve their constituents with modern technology while reducing the amount they spend on legacy systems. Their efforts to move to a digital, mobile-first engagement model often are held back under the weight of legacy systems—and, in many cases, smaller budgets.

Slavik Zorin, CEO of Synchrony Systems, has been in the software modernization field for over 20 years. He has worked closely with trusted government partners such as IBM and the “Big Four” firms helping government organizations transform their legacy applications, thereby reducing costs while gaining the benefits of modern architecture. He offers these tips when developing an RFI or RFP for your modernization initiative:

1. Look for options other than rip-and-replace proposals

In today’s age of digital transformations, something even more disruptive to the organization than the upkeep of its monolithic legacy systems is a monolithic, big-bang approach to modernizing these systems. Many of the default, go-to large System Integrators that respond to RFPs are continuing to offer antiquated, wholesale rip-and-replace solutions. At the outset, the time, resource, and dollar estimate of these approaches appears reasonable. However, the eventual cost is significantly higher than anticipated because of change requests arising from the continuously shifting requirements of an evolving legacy system during the modernization project. These change requests introduce a high risk to the modernization project and compound the cost and time to complete it. RFP reviewers need to be mindful of a proposal that offers a low initial price but has a contract designed for unlimited change request triggers.

In contrast, a new approach to modernization driven by 100% automation, provided by companies such as Synchrony Systems, changes the status quo. They offer a highly transparent, efficient, and predictable modernization solution at a fraction of both the price and the risk of the traditional rip-and-replace solutions. Not only does this new approach fit within the shrinking budgets of the public sector, but the process requires little to no internal IT involvement and no end-user retraining once the modernization project is complete.

2. Ask how vendors will preserve the functional equivalence

Your government IT professionals have spent years building systems specialized for your agency, department, or office. The final application was probably developed organically, adding functionality as needed and modified as the needs of the organization changed. Your IT “subject-matter experts” certainly know your systems inside and out, and those systems contain critical functionality to support your agency’s operations.

The challenge with legacy applications is not the functionality but the aging technology that the functionality is built upon. What necessitates the modernization are your maintenance costs, skills shortage, technical requirements imposed by the regulatory compliance changes, and overall inability to provide modern digital experiences to your constituents. The move to modern technology is no longer the debate. The question is whether the modernized system will be one that your IT department can recognize and continue to maintain as efficiently and effectively as it has been to date.

By looking for modernization solutions that focus on the preservation of the original investment into legacy applications, your organization will end up with modernized systems that have equivalent functionality and a recognizable user experience. Therefore, the transition plan to take ownership of the application in a new platform will be more immediate, operationally frictionless, and will have significant cost savings.

3. Understand the potential impact on the user experience

As mentioned before, rewrites or wholesale replacements of mission-critical applications inevitably leave the organization with an entirely different system. In addition to the cost, time, and effort of the traditional rip-and-replace modernization, your IT department would also be required to re-train all the end-users on the new system and update all internal processes and documentation. This hidden cost, which is often quite high, gets overlooked.

User experience (UX) equivalency means that the modernized system would remain recognizable to the end-user and would be 100% equivalent from a usability perspective. One modernization that Synchrony Systems performed was a mainframe application for the New York Police Department. Due to a tight budget, NYPD wanted to avoid any additional retraining that would typically follow a modernization project. Synchrony Systems offered a solution that would mimic exactly the look and feel of the 3270 green screens, but in the modern, native, browser-based technology. The modernized application was delivered within the promised timeframe and budget, without any change requests and, as promised, without any end-user retraining.

Some may argue against having the modernized application look and feel like the dated application, but the benefits are far too great to ignore, especially for the government. These benefits include no end-user retraining for internal or external users; no need to update support, knowledge bases, training manuals, or any other documentation; and no productivity loss because UX equivalency preserves all the known productivity shortcuts already developed by end-users. Only a modernization that guarantees UX equivalency can ensure no disruptions to the government’s operations.

4. Ask vendors how to avoid code freezes

Mission-critical legacy applications are typically in use every day (and sometimes 24/7). More often than not, these systems require frequent code changes to address the numerous changes in regulatory compliance and government operations.

Vendors that offer traditional manual rewrite modernization approaches are forced to impose “code freezes,” i.e., periods of time where no changes can be made to the application. Such is the nature of a wholesale rewrite; for the rewrite to have any chance to complete, the system must remain unchanged while it is in progress. For many organizations, this is simply prohibitive, hence the reason legacy applications remain on aging technology.

The ability to maintain and update the legacy application while it’s being modernized to a new technology entirely changes the dynamics of modernization projects. At Synchrony Systems, we are able to support the coexistence of modernization activities with ongoing development activities without any code freezes. Powered by our Modernization Lifecycle Platform, ongoing new releases of the legacy application are continuously synchronized by replaying all the recorded automation that has taken place up to that point. For companies like SoCalGas, with a proprietary system that had daily pricing changes, the elimination of code freezes was essential.

In reviewing the bids from your RFP, be sure to fully understand if code freezes are a part of the modernization process and how it may impact your organization.

In summary

The move to digital is an opportunity for the government itself to become more agile in its operations and service to its constituents. And, more than any other organization, the government must be completely transparent and ensure continued fiscal responsibility to spend taxpayers’ dollars wisely.

Using these few tips can put your organization on the right path for digital transformation.

The antiquated rip-and-replace and manual rewrite practices of traditional System Integrators are opaque, very expensive, and risky. Synchrony Systems offers a modernization process and platform that is fully transparent and predictable, rooted in technology and automation, and enables us to provide reliable and unchanging fixed prices that do not rely on hidden change-request practices that have been the status quo in this industry. If your organization or agency has this need and is looking for a guaranteed success that is fast, cost-effective, and risk-averse, send us an email or give us a call at (203) 355-3636.