Code Quality for Custom Software Development

Code quality or software quality is a factor which is often overlooked in the development process of new software. Code quality reaffirms software integrity, and ensures compatibility for future add-ons; much like what the raw material quality does for custom builds. In order to understand why the code quality matters for a piece of software, we first need to elaborate on the parameters defining a qualitative code, as well as the standard for measuring them.

When we talk about measuring the code quality, it’s important to note that there’s established precedent on the issue. The method most firms go with is to usually have an expert look at the code. This is basically proofreading for machine language. For example, if you submit a code in a particular language, your client can opt to have someone with certified readability assess your code, and have them point out the anomalies. The usual suspect behind such anomalies is the time constraint- the deadline which developers have to race against to deliver the finished product. Be as it may be, software firms usually have dedicated teams to implement refactoring activities across the board, ranging from the removal of deprecated methods to the migration to new language features.

Another go-to method for assessment is the application of certain metrics to the code, followed by the usage of tools to report the aforementioned metrics. These metrics include, but are not limited to, the following:

[wp-svg-icons icon=”checkmark” wrap=”i”] Coupling (number of inputs, outputs, global variables, and modules used)

[wp-svg-icons icon=”checkmark” wrap=”i”] Defect density (the number of defects found per line of the source code)

[wp-svg-icons icon=”checkmark” wrap=”i”] Cyclomatic complexity (the number of paths through a given code block)

[wp-svg-icons icon=”checkmark” wrap=”i”] Halstead complexity measure (program length, program vocabulary, calculation of both etc.)

Once we’ve accepted a set precedent to measure the code quality, we may assess the factors relevant to code quality, and their importance in the development of custom software. There are two notions that come to play when we are considering code quality:

Software functional quality:

This is reflected by the code’s conformity to the established functional specifications. This can be attributed to the general usability of a piece of software, or its performance benchmarked against the other available options in the industry. The standard factors compliant with this notion are:

[wp-svg-icons icon=”checkmark” wrap=”i”] Code efficiency: This is directly proportional to the speed and performance of the software. It is usually upheld by removing redundant code, and ensuring the writing of reusable code (reducing the resource consumption).

[wp-svg-icons icon=”checkmark” wrap=”i”] Code reliability: This is more of a long-term standard, whereupon the code in question performs consistently regardless of its age. Error-free codes are one of the primary requirements of the industry.

Software structural quality:

The structural quality of a piece of software is measured by the performance of factors which are purposed to supplement the functional qualities. Few of the parameters are listed below:

[wp-svg-icons icon=”checkmark” wrap=”i”] Robustness: This refers to the ability of the software to work in unfavorable conditions. Robust softwares can effectively counteract SEU (single-event upsets).

[wp-svg-icons icon=”checkmark” wrap=”i”] Maintainability: In the lifespan of a source code, it has to undergo multiple modifications, including addition of new features, modification of existing ones, elimination of bugs etc.

Maintainability is instrumental in ensuring the consistent functionality of the software in the event of modifications.

Apart from the basic parameters, we also have software readability and portability, which serve to ensure functional longevity of the software. A sub-standard code will only serve to create more problems further down the line, whether they are compatibility issues or functional ones. That is why it is important to adhere to a strict standard when it comes to ensuring code quality.

  • No products in the cart.