Chances are, your organisation is looking to modernise legacy applications, break down monolithic application architectures into services, and migrate to public or private cloud infrastructure.
It’s a grand plan, but sadly, recent research shows that 79% of application modernisation projects fail. In the research, 92% of respondents had application modernisations in progress with an average project duration of 16 months, costing $1.5 million.
Worse, nearly 80% of software leaders and architects admitted to one or more failures.
While it was once popular, many CIOs and devops teams now dread resorting to a lift and shift for application modernisation. Even when the application's architecture, security, performance, and costs have few migration risks, the cost to migrate and test could yield few business benefits or end-user improvements.
More and more, organisations are looking to low-code and no-code platforms as an alternative to lift and shift.
When to choose a low-code or no-code platform
Using low-code and no-code platforms is one way to make application modernisation more viable. In general, you won’t be able to port existing code and databases directly to one of these platforms, but they do provide the infrastructure to rebuild legacy applications quickly while addressing their shortcomings.
“Software architecture requires broadening our perspective and considering the larger system, a wider range of possibilities, and a longer time scale,” says Andrew Davis, senior director of methodology at Copado.
“Legacy applications are living proof that a significant portion of the cost of software is in its long-term maintenance. Low-code and no-code applications are designed to reduce complexity and thus increase maintainability over time.”
Low-code or no-code platforms can help accelerate application modernisation, but not in every case. You need a good match between the application's business requirements, user experience, data, architecture, integrations, security needs, compliance factors, and reporting with a low or no-code platform’s capabilities.
Below are some tips that can help you determine whether low-code or no-code is a viable approach for your application modernisation project.
Is the application a good fit?
Some types of applications and use cases are better candidates for low-code and no-code. Applications used for departmental business processes such as approval workflows, onboarding, content management, work queues, request processing, budget management, and asset tracking are high on the list.
Another set of use cases involves integrating, joining, and merging data sets that feed applications, reports, or automations.
The foundations of these business processes and data flows were often jerry-rigged using spreadsheets, word processors, emails, Microsoft Access databases, and other desktop applications. Department leaders could either live with the manual workflow, use robotic process automation (RPA) tools to automate some steps, build a no-code application, or ask IT to develop one for them. When IT received the green light to build an application, many elected to code it rather than use a low-code or business process management platform.
Any proprietary application developed and coded by IT needs ongoing maintenance, and unfortunately, it’s the smaller departmental applications that often get the least attention. When it’s time to modernise them, low-code and no-code platforms can be accelerators, especially when the legacy application has the following characteristics:
- Developed for a small scale of users, usage, or data
- Built with relatively simple business logic but may have many exceptions requiring an employee’s intervention
- Created with a straightforward data model, though there may be lots of data, many fields, and messy temporary tables
- Integrated with common SaaS platforms with IFTTT logic or other simple data flows and transformations
- Constructed with simple reports that can be replicated in a citizen data science or data visualisation tool
What to look for in a low-code platform
If the application is complex, rebuilding it in a no-code platform could be challenging. Low-code platforms that help accelerate development are more likely to have the required flexibility. Some even come with tools to accelerate modernisation.
“Modern low-code development platforms have a host of inbuilt accelerators,” says Vikram Srivats, chief commercial officer of WaveMaker.
“If time and money are in short supply, low-code platforms offer a flexible approach to dramatically increase modernisation speed, packaging up existing business logic in the legacy application via APIs, and consuming them in modern, performant, and secure front ends.”
Look for platforms that have modernisation solutions, application marketplaces, or coding language-specific translators. These indicate that the platform provides the building blocks for modernising existing applications.
Use cases for low-code or no-code app modernisation
The next factor to consider is the type of modernisation project and what your team is looking to get out of it. Low-code and no-code tools are better suited to some application modernisation scenarios than others.
Modernising user experience
A common path to modernisation is rebuilding the user experience, business logic, and data flows from the ground up. Business leaders who recognise the need to transform their business processes may want to redesign but may not have the time, budget, or interest to develop a homegrown cloud-native application.
Building a new experience in a low-code platform may be a viable option, especially when stakeholders come in with flexible requirements and are open to the ways that low-code platforms simplify implementations.
Dinesh Varadharajan, chief product officer of Kissflow, says:
Low-code has emerged as a solution to modernise legacy systems developed with a traditional perspective. The objective is not merely to copy or replicate the existing system but to create a modern version. To achieve this, low-code and no-code offer frameworks that are well-defined, already abstracted, and provide modern components. The value addition of this approach lies in the ability to quickly create a modernised system better suited for current business needs.
Rishi Bhargava, co-founder of Descope, shares why a low-code approach can offer longer-term advantages. “Abstractions are faster, and building supporting systems outside the developers’ core expertise is quicker when visualised as a low or no-code abstraction,” he says. “New developers can more easily pick it up rather than poring over old code, and lots of custom code takes developer resources to maintain and update with time.“
The redesign approach works best when working with open-minded stakeholders and business sponsors. Look for stakeholders who seek new ways of performing workflows, are willing to compromise on implementations, and are less likely to view legacy tasks as hard requirements.
Re-engineering manual processes
Another modernisation path calls for updating existing business process with many complex and manual steps. These legacy applications look half-done to a technologist, especially when end-users do more of the heavy lifting outside of the application or when applications are highly data-driven without crafted business processes. Focusing on the process gaps can lead to developing automations to replace the manual steps.
“Legacy processes rely on manual procedures that are time-consuming and limit scalability, resulting in slow, error-prone, and costly processes that can’t keep up with the pace of modern business,” says Mav Turner, chief technology officer of devops business at Tricentis.
“Low-code and no-code solutions enable organisations to automate end-to-end-quality at faster speeds with reduced maintenance costs, streamlining the process for development teams and saving resources down the line.”
Replacing UAT with low-code test automation
Sometimes it happens that IT needs to upgrade the platform on an application that business users have little interest in changing. IT needs business users to perform user acceptance testing (UAT) on the modernised application, but business users aren't motivated to do their part. When IT can't get the buy-in needed to build test cases and conduct repetitive testing, the result is a bottleneck.
One workaround is to use traditional steps to modernise these applications but then use a low-code test automation platform to build regression tests. The goal would be to remove the UAT bottleneck and leave a set of regression tests to support future upgrades.
“AI-augmented quality engineering tools streamline processes, flag potential bottlenecks, and empower non-developer roles like business analysts and testers to ensure quality,” says Turner. “Developer teams then have more time to focus on more specialised tasks and accelerate app deployment without sacrificing quality.”
To summarise, low-code and no-code platforms offer several paths for accelerating application modernisation. The key to success is understanding requirements, partnering with stakeholders on evolving business processes, and reviewing how low-code and no-code platforms can accelerate development while simplifying ongoing maintenance.