This persistent question-asking can unlock the project, opening it up to a previously unthought of solution.
Many times, have I experienced very unpleasant shocks on projects which have not deliberately iterated in this way.The other reason, this is required is that we cannot pretend that, even in the more detailed levels of design, ideas, drivers and decisions, will not continue to evolve.
You can call it changing-minds or scope-creep or natural emergence; whatever it is called this will be handled much more cost and time effectively through managed iteration..The design process needs to remain integrated.This iteration is a part of ensuring the design is and remains integrated.
Although different parties become engaged with design and delivery, it is the integration of the design which leads to the required outcomes.There is little value in ten high-quality design packages if they do not interface and deliver efficiency in construction and effectiveness in operation.
The integrated team need to be much more proactive and collaborative than design-coordination, which is a lagging process, detecting and correcting clashes.
Instead we need a design integration approach which progressively and iteratively develops the design philosophy that will deliver the value in construction and operations..a patient room, which has certain needs, regulations.
Group of spaces e.g.complex departments such as operating theatres, where all aspects of the room are dependent on each other to work properly.
Whole asset e.g.when a Reference Design can be repeated as a fixed design c.f.