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Is composability a proper word in English ? Suppose I have a set of elements and can compose them to create different structures. May I call this property of the set "composability" ?

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What dictionaries have you consulted? –  choster Feb 25 at 18:24
    
I did not find it in m-w.com but found it in Wikipedia –  Michael Feb 25 at 18:26
    
It's a possible word, but it would refer to one specific sense of compose only. Say you mean the mathematical sense of two functions f(x) composed with g(x), i.e f(g(x)). Then if there were some reasons why they couldn't be composed in this sense (say f(x) = 1/x and g(x) = 0/x), they would be uncomposable; and if there weren't, they'd be composable. But there has to be a specific definition for compose. –  John Lawler Feb 25 at 19:13

1 Answer 1

The term exists in the field of software engineering:

Composability is a system design principle that deals with the inter-relationships of components. A highly composable system provides recombinant components that can be selected and assembled in various combinations to satisfy specific user requirements.

It is not a "standard" English word and many who heard it used would assume it was technical jargon from one field or another.

So, in short, you can use it if you have a matching technical use of "compose" but it is highly recommended that you very explicitly define the term before using it.

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