"is highly structured" is correct and usable in written English.
It is typically used to describe something that is well-organized or follows a strict format or system. Example: "The company's organizational chart is highly structured, with clear hierarchies and defined roles for each employee."
Daily life is highly structured, with limited free time.
The story of a novel, in contrast, is highly structured: a party of supreme elegance, especially if thrown by Spark.
The brain is highly structured, but it is also extremely flexible.
The mass itself is highly structured and can be difficult for non-Catholics to follow.
Everything Amis writes is highly structured, but Yellow Dog gives signs of quite bristling organisation, in its three parts and its subdivided and subheaded chapters.
The program is highly structured, based on a manual for counselors, with topics defined for each therapy session and homework assignments for participants.
While the experience is highly structured, there are enough choices for viewers to make that no two visits are exactly alike.
Part of what makes the approach effective is that each routine is highly structured, and so replicable, but allows for student input and choice.
The sect is puritanical, worships Shiva exclusively, rejects the caste system in favour of its own social organization, and is highly structured, with monasteries and gurus.
Top-level professional cycling is highly structured, for various reasons – the use of earphones, the allocation of WorldTour points, the sheer importance of television time – which tends to discourage individual initiative.
Dr. Schnitzer said the technique took advantage of the fact that when single-frequency light from a laser illuminates a material that is highly structured and directional, the material emits a harmonic, at twice the original frequency.
