What Is
Legacy Migration and Why to Consider It
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What Is Legacy Migration and Why to Consider It?
Software technologies and applications are on the road to an inevitable innovation- one that helps improve business processes, ensures better customer acquisition, leads to exponential financial growth, and adds seamlessness to enterprise infrastructure. SMBs and established organizations find it almost tedious to keep pace with changing trends, and doing so with legacy applications makes it even more far-fetched.
Amidst the cut-throat competition for industrial dominance- the changing customer demands, and the necessity to adapt the infrastructure to suit the modern needs, legacy applications and their outdated makeup aren’t able to comprehend the growing enterprise requirements and unable to suffice the modern platforms needs.
However, some businesses still hold on to these obsolete legacy systems or applications for two reasons: they store all the historical data, and a legacy shift might disturb the cyclic nature of the business process. Although these are valid concerns, they are not enough to hold on to old systems, lose customers, sales, revenue, and conversions in the process.
Legacy migration is no longer a luxury but a need of the hour. And enterprises must accept this change willingly.
This article discusses what legacy applications are, how they’ve lost their touch in the modern IT sector, and why legacy migration is a vital step for enterprises- big and small.
What are Legacy Applications?
A legacy system or application is a software program developed using obsolete programming languages. However, businesses have relied on these languages for decades; their bulky and slow operating nature has made them inefficient and cumbersome in the modern IT setup. For organizations that still employ legacy systems to their core, legacy migration is the only solution that ensures adaptability and existing infrastructure maintenance.
Why Business still employ outdated legacy systems?
Businesses consider legacy migration to be a daunting process, which is probably one reason they are so reluctant to migrate their systems. However, other reasons why companies continue to employ old legacy architecture include:
A running application: Enterprises that already have a running application feel there is no urgent need to upgrade or fix their legacy architecture. Even if there are persistent issues, they think it is easy to maintain their status quo, especially if employees are comfortable with it.
An expensive decision: The cost of designing, replacing, or upgrading a legacy application is a monumental expense. Businesses consider legacy migrations complex, time-consuming, and the expenses can spiral out of hand if mismanaged.
Might disrupt the traditional workflows: Legacy migration can disturb traditional workflows and ask employees to understand the new structure- a big enough reason not to opt for it.
Why Enterprises Must Migrate Their Legacy Systems
Legacy modernization has become a need for organizations to avoid pouring money and resources in their old systems and ultimately, down the drain. Legacy migration consists of either porting the entire setup or rewriting it to the desired software platform by employing all the necessary third-party libraries, codes, APIs, hardware, protocols, etc.
The following are some reasons why legacy migration is a must:
Allow multi-platform support and portability
IT systems were developed over a decade ago. Not only were there fewer choices at that time, but the concept of building applications for multiple platforms seemed foreign for companies. As a result, software vendors developed applications based on open-sourced languages or Linux OS. Moreover, thanks to technological advancements, even Java-based systems are on the verge of being considered as legacy in the coming years.
Portability is another factor that makes legacy systems an outdated idea. The needs in each department vary- one might require higher storage space in the design, while others might need more processing speed. An enterprise needs a portable IT system that delivers optimum results in all conditions. And legacy systems don’t possess such capabilities.
Better enterprise performance:
Legacy systems were built on bulkier languages leading to slower processing speeds- which was fine during those times. However, the enterprise demands have changed, and legacy systems aren’t competent enough to supply speedy performance. With better hardware capabilities, legacy migration boosts the interoperability of features and applications. Once developers decipher the correct application OS, software UI of hardware modules, and technologies that enable interface accessing- they can find the right modern platforms for your applications and systems, eventually improving enterprise performance and enforcing scalability.
Enabling data protection:
Legacy systems were not adequately protected because there weren’t many known computer viruses or hackers at that time. However, now the local hosting of your systems and applications leaves your business vulnerable to viruses, data loss, intellectual property, or identity theft. Moreover, legacy systems don’t have a reliable backup or a data recovery plan in action to restore essential data in the event of its loss or damage.
Outdated technology:
Most of the legacy systems were hosted on local servers, making tracking and upgrading a tedious and time-consuming process requiring days of business downtime. On the other hand, legacy migration to the cloud means automatic updates and monitoring, personalized data access based on organizational hierarchy, optimized work experience, and data-based decision-making based on data analytics and insights.
Application Mobility:
Legacy systems were based on Windows computers and desktops. However, modern times require solutions to be accessible on Mac and several mobile OSs. Legacy modernization on the cloud makes data available 24/7 to your employees- meaning you can access data from anywhere, anytime. Also, the migration of legacy systems to the cloud allows multiple users to simultaneously share and work on the same data.
The Types of Legacy Migration
There are two types of legacy migration: lift-and-shift and business transformation.
lift-and-shift migrations:
These migrations replace or update the underlying infrastructure or technology. In this scenario, there is no urgent need for legacy migration; hence, the IT team rebuilds the entire existing system slowly and steadily, one by one as per the new technology.
Business Transformation migrations:
As the name suggests, these migrations result in business transformation or innovation. The entire legacy systems are updated or replaced in this setup since it no longer supports the modern business processes or provides the right user experience. Hence, the team might hire a business transformation consultant that can assist them in adapting legacy systems to the modern infrastructure.
These are of two types:
Core legacy migrations:
Solutions like portals or custom ERP systems replace the core of the business processes to add scalability and better performance.
Non-core legacy migrations:
These require migrating smaller apps built using technologies like Microsoft Access or SharePoint. It is mainly practiced to enable business innovation, centralized governance, and allow easy data migration.
Conclusion
Legacy applications were developed to support a decade-old technology. These systems employed old hardware and coding platforms that formulated the core backbone of several enterprises. However, today, things have changed. Organizations are surrounded by several challenges, the prominent ones being the changing customer demands-their utter need to indulge in product experiences rather than product descriptions and newer technologies being adopted by competitors. Legacy systems are not able to sustain the modern needs or fit into the tech-savvy equations.
Enterprises require scalable, agile, innovative, unique, efficient, and effective solutions. They need up-to-date platforms like .NET, MEAN, MERN, the cloud, or new Java technologies. And legacy migration can help achieve such modernization requirements and more.
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