'making challenging' is correct and usable in written English.
You can use it to describe a situation where someone or something is creating an obstacle or difficulty. For example, "Our team is facing the challenge of making challenging decisions."
Large-scale systems involve a high number of variables making challenging the design of controllers because of information availability and computational burden issues.
Urban drainage systems (UDS) may be considered large-scale systems given their large number of associated states and decision actions, making challenging their real-time control (RTC) design.
For example, providing for succession to leadership is clearly a condition for the survival of a business, but it is rarely possible without making challenging assignments available to younger executives when older ones are better qualified.
These people are making challenging movies and clearly they are worthy of support.
But after a lifetime of making challenging art, she isn't done shocking the world yet.
Mr. Friedrich and Ms. Friedrich formed Dia in 1974 with the art historian Helen Winkler to support contemporary artists making challenging and sometimes long-term artworks.
In many firms, including Toyota, family ties make challenging the boss all but impossible.
Such algorithms are irregular which makes challenging their parallel design and implementation on GPU accelerators.
Rona and I discuss five ways to make challenging relationships less difficult over the holidays.
However, the intricacy of these mechanisms makes challenging the identification of candidate genes for functional validation [ 21].
The interaction with coaches making challenges is occasionally comedic.
