[gowld]

"quality" is a subjectit word. Let's be clear what this means:

Individual researchers, and in many disciplines (like physics), there is almost no emphasis on correct results, merely on believable results.

[bumby]

There are a few standardized definitions. The most succinct bring “quality is the adherence to requirements”.

As an example, if your science has the requirement of being replicable (as it should) there are a host of best practices that should flow down to the software development requirements. Not implementing those best practices would be indicative of lower quality