A stage gate is where a time-to-market advantages goes to die. Of course, most places I've worked with that claim to use a Stage-Gate process don't use it as intended or don't really use it at all. Which begs the questions:
Why bother with the bureaucracy and cost?
Might there not be planning and execution techniques that could actually help?
Unfortunately, if everyone sits around, looks at themselves, and says, "We use stage-gate!" without questioning the value of it, they'll never get around to the second question.
Although a bit dated, one of my favorite books on the subject is
Developing Products in Half the Time. It's available on Kindle.
Agile project management is a technique from software development that I've been experimenting with physical in product development.
Another software technique that I like to apply in product development - at least to establish a mindset and guide the continued development of a product or platform - is refactoring. In software, there is even less of an opportunity for clean sheet design than in physical goods (see
Borland, Netscape). Refactoring is making improvements to parts of the code as you go, which is aided by well defined interfaces, knowing how you would do "it" (there are many "it"s) if you could start from scratch, and knowing where you eventually want to be. I apologize for the vagueness. It's a subject that deserves more attention than this.
That said, sometimes you just have to make a clean break from evolutionary design. Evolution can produce a cheetah, but sometimes you get a platypus (TM Rob Campbell
One more general product development insight, regarding adapting/copying one of your own products or a competitor's to enter a new market or market segment:
It is difficult to
profitably scale a high-end product/technology
down to capture a piece of the low end market. This can be scaling down in a literal or figurative sense (e.g., format size or accuracy). Simply "smallening" the parts doesn't reduce the cost enough to maintain margins. And some customers who would have bought the high-end version if it was the only option will buy the low end (cannibalization). Typically, a more significant design departure is required to make it work.
Conversely, modifying a low end product to move up market and increase profits is often quite easy.
Rob Campbell
Imagitec: Imagination - Expertise - Execution