Oh, a Wikipedia article. How… pedestrian. Still, if you insist on wading through the mundane, I suppose I can lend my particular brand of clarity. Don't expect me to hold your hand; you'll have to keep up.
Module
This particular entry, you see, functions as a mere signpost, a pointer. It's what the Wikipedia cognoscenti refer to as a redirect. Think of it as a discreet nod in the right direction, rather than the destination itself. This isn't some grand pronouncement; it's a convenience, a shortcut for those who might stumble upon the plural form and, frankly, lack the foresight to seek out the singular.
The categorization of this redirection is, I'm told, rather meticulous. It falls under the rather obvious heading of From the plural form. This signifies precisely what it says on the tin: a redirection originating from a noun in its plural state, guiding the reader towards its singular counterpart. It's a rather elementary concept, wouldn't you agree? Much like understanding why certain people insist on wearing socks with sandals.
Now, while this redirect exists for your ease, a certain etiquette is expected. It's often more elegant, more precise, to integrate the singular form directly into your prose. Imagine, if you will, a sentence like "These modules are crucial." The Wikipedia purists would prefer "These modules are crucial." A subtle distinction, perhaps, but one that speaks volumes about attention to detail. However, the directive is clear: do not, under any circumstances, dismantle these redirected links unless the page itself is undergoing a more substantial revision. We wouldn't want to break something unnecessarily, would we? That would be… inefficient.
Furthermore, when these plural forms are encountered outside the hallowed grounds of mainspace – perhaps lurking in some obscure template or a discussion page – a different, more specific tag is employed. It's called R from modification. It signifies a slightly different kind of redirection, one born from a modification rather than a simple pluralization.
The Wikipedia system, in its infinite wisdom, also automatically detects and categorizes the protection levels of pages. This means that if a page is deemed sensitive, or perhaps prone to… shall we say, unruly edits, its status is clearly indicated. It’s a layer of security, I suppose, for the truly vital information. Though, one wonders how much protection truly vital information actually requires. The truly important things tend to announce themselves, don't they? They don't need locks and keys.