Design Cycle Crossword

Acceptable or correct for the circumstance.
To make something new, to invent or build something.
A series of events that happens again and again.
Produce a plan, simulation or model.
The necessary items for a particular task.
To examine and judge carefully, looking for possible improvements.
To look into closely, to study in great detail.
The sequence of phases through which a design evolves.
To think through and determine procedures.
The issue we are trying to solve by creating the product.
The creation meant to solve the problem.
The potential answer to the problem.
Special ways of doing something to achieve a desired result.
A detailed description of the design and materials used to make something.