Software quality

What do you mean by software quality?

Clóvis Wichoski
April 28, 2020
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See what software quality means and how this understanding can add value to the final product, both in the market and in the profession.

A software quality product or service is defined by the type of suitability and purpose. Every developer knows that the quality of software depends on exactly what users want. See in this article what we can understand by software quality, so stay tuned!

In fact, software quality is a somewhat abstract concept. However, before looking at how to improve the quality of the software, we must first understand its definition.

What does software quality mean?

Well, there are many variations to a “correct” definition of software quality. However, in layman’s terms, for people who are not part of the universe of programming and software development, it would be the following: does the program fulfill its function or not? These are some of the characteristics that we must also look at from the view of end users.

Software quality has more to do with internal aspects, such as code architecture, code quality and security than with external aspects. Therefore, it must meet certain requirements. And what are they? The requirements can be classified as functional and non-functional.

This means that these requirements must refer to the specific functions that the software can perform. However, just because the program has a certain function or because a user can complete a task does not mean that it is of good quality.

There are probably many cases where a developer used software and worked properly, even though he thought it was of low quality. This dissatisfaction represents non-functional requirements that are not being met.

Did you know that the International Organization for Standardization, here called ISO, for this purpose, developed ISO 25010 as a model to specify these non-functional requirements?

What, after all, are these requirements?
A quality associated with software must go through several methods, as we will see below:

Portability

Software is considered “portable” if it can work in various operating system environments, as well as on multiple devices or even with others.

Usability

A software has a better usability if several categories of users can easily use its functions.

Reuse

A software is reused if different modules can be used in order to develop new ones.

Maintenance

Software can be maintained if errors can be easily corrected when they appear. In addition, new tasks can be easily added and their functionality easily modified.

However, several types of revisions such as walkthroughs (for brainstorming actions) and traditional software tests (in continuous execution to extract all margin of bugs and errors) can be applied along with these requirements.

Current scenario change

 

Now that we understand the requirements, having passed these criteria above, the result of errors caused by the failure can sometimes be irremediable.

Thus, a program that offers quality will also offer security to the user, in addition to having essential services and generating business competitiveness. Therefore, the quality of software must be linked to those specifications and standards previously proposed.

However, in the development field, one of the biggest challenges for programmers and managers is internal factors such as budget, duration and deadline. Without it, likewise, the quality of software cannot be total in terms of satisfying your needs.

Thus, program developers can follow these requirements without error, helping to connect, solve and minimize the problems that the customer presents. But for this, it is important that there is a clear and explicit communication channel between developer and client, as far as possible, with constant questions and feedbacks.

Let’s remember that the market has become globalized and digital, the forms of interaction and demand have changed. Today, it is important to take into account that the customer is at the top and not the company anymore. This reversed logic now requires developers to start acting at the pace of satisfying and serving this new customer/user.

Unfortunately, even in Brazil, these testing, requirements and management methodologies are not part of the reality of many companies in the IT industry. It is for this reason that many of them end up falling short in terms of quality software, and end up becoming less competitive in the market.

As long as there are software engineering projects focused on the total quality of the final product, the whole process can guarantee an excellent evaluation in the market and in the profession.

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Clóvis Wichoski

Clóvis Wichoski

CEO Mapperidea
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