Notes on Software Maintenance

Introduction

Software maintenance constitutes a critical aspect of the development life cycle. Nonetheless, it is common that some aspects of it doesn't receive the level of priority they deserve.

Software maintenance is vital component of any successful digital strategy. Not only is it necessary for the smooth operation of systems, but it is also a key aspect of ensuring that software stays up-to-date, efficient, and secure.

Importance of Software Maintenance

Software maintenance is an essential part of the software lifecycle. It is during this phase that bugs are fixed, and the software is updated to ensure it continues to function correctly and efficiently. Without regular maintenance, software can quickly become outdated or prone to errors, negatively impacting the user experience and potentially causing significant downtime or data loss.

Types of Software Maintenance

We can differentiate maintenance in 4 groups of tasks:

• Functionality enhancements, new features, improving UX, performance optimization, etc. That is what we called "Perfective" maintenance.
• Bugfixing and patching. This activities are part of the "Corrective" maintenance group.
• Updating underlaying infrastructure, complying with regulatory changes, etc. This is "Adaptative" Maintenance.
• Then future proofing, code optimization, documentation updates, etc. It's known as "Preventive" maintenance.

The Cost of Neglecting Software Maintenance

As companies prioritize initiatives that promise immediate returns, dedicate efforts to components perceived as offering little value or no immediate impact may seem counterintuitive. This is when routine engineering involved in corrective, adaptative and preventive maintenance is left aside.

Available Tools and Practices don't necessarily help to communicate the cost of inadequate software maintenance.

For communicating the cost of inadequate software maintenance, it is important to highlight the potential risks and costs associated with system failures or security breaches that can result from outdated or unmaintained software.