Word / phrase for a product/system that presents several unrelated functions

What's the word (or phrase) for a product/system that presents several (probably unrelated) functions? Swiss Army Knife is a good example of such products. I'm looking for something other than multipurpose. In fact, it's a multidimensional and multiple-aspect system.

Solution 1:

The OP hasn't explained why the term multipurpose is not appropriate for their needs, it seems a perfectly appropriate expression to describe any object that has more than one function.

There are; however, viable alternatives. I suggest: multifunctional and all-purpose

• something that is multifunctional does several different things or has several different uses
  e.g. a multifunctional tool

• able to be used in a lot of different ways
  e.g. an all-purpose stain remover

(Source: Macmillan)

A multifunctional piece of furniture: study desk/table/seat

EDIT

Thanks to @displayName who has pointed out that the OP needs this word for a software product. That type of clarification should be made or edited in the post, and not left in the comment section.

“Multifunctional software” produces over 200 hits in Google Books

In today's world of increasingly integrated and multifunctional software programs, it seems particularly important to theorize and empirically examine the relationship between task and technology in the formation and influence of CSE.

_{Human-computer Interaction and Management Information Systems
^{By Yahong Zhang, Dennis F. Galletta}}

“All-purpose software” produces fewer than seventy hits on Google books

Today, all-purpose software for microprocessors and other software tools determine technical progress in most fields …
source

Solution 2:

If you want to shun multipurpose, you may consider calling your product multifaceted, to give the connotation that it has many sides, or solves a problem using multiple approaches:

: having many different parts : having many facets
_{Merriam-Webster}

Where one of the usages of facet is:

: a part or element of something
_{Merriam-Webster}

A note about the ultimate Swiss army knife: Just because you can build it doesn't mean you should:

Solution 3:

Formal word - Multi-tool

Casual use word - Swiss Army Knife

Update 3-a: People are pointing to the fact that Swiss Army Knife softwares are bad softwares. That is not what this question is about. It is about how to describe a Swiss Army Knife like software. Please go to Update 3-b.

Since you have given the example of swiss-knife, I searched for the description of swiss-knife to see how do the manufacturers and users of swiss-knife actually describe it. The word they have used is multi-tool. Multi-tool is by definition a versatile hand tool that combines several individual functions in a single unit.

Here are other close synonyms:

1. Adaptable
2. Flexible
3. Multifaceted
4. Multitalented
5. Handy
6. Resourceful, and
7. Polytropic (rarely used)

I'm expecting you to say that "multi-tool" is not essentially a word applicable to all systems and dimensions and is, again by definition, just a manual hand tool and not an automatic device. Perhaps, if you would tell us the sentence you are trying to make then maybe we can locate a better word.

I have realized that sometimes even very simple words explain our thoughts in entirety and that's the only purpose of languages and words. For example, To describe a robot that can do thousands of unrelated things like cook food, perform scientific simulations and calculations, rescue people in emergencies, guard home, regulate air conditioning, do yard work, buy groceries, tell bed-time stories, play carom with you and what not... the manufacturers will say that they have created a smart / intelligent / next-generation robot.

Update - 1: I just saw in the question's comments that you want to describe a software with the adjective for a 'Swiss army knife'. You know, you could even just say that This software is the Swiss Army Knife for x, y, z domains, if that brings home the point you are trying to make.

Update - 2: For the sake of correctness of my answer, here is a link which confirms that 'Swiss Army Knife' can be used as an adjective and it literally means exactly what you are asking for.

Update - 3b: If you have built a bad Swiss Army Knife or if was just want to shelter yourself from the bad connotations associated with the SAKs in softwares, then say that you have built a multi-tool (or use the other synonyms mentioned in the answer above, multi-functional included). If you have built a good Swiss Army Knife, then be confident about your claim that you have indeed built an exceptional Swiss Army Knife.

Solution 4:

Perhaps "Versatile" is the word you're looking for.