What is Noise in Communication? A broad definition of noise in communication is something that keeps a receiver from completely comprehending a message. Distractions can inhibit a person from offering his undivided attention and may keep him from fully grasping what you are trying to say.
The difference between FDM and PolyJet printing is that PolyJet printing will give you extremely smooth surfaces, complex geometrical structures and precision like never before. Another great advantage that comes with PolyJet printing is that you can use a number of materials in one single prototype.
The simple difference between the two is that Product Cost is a part of Cost of Production (COP) because it can be attributable to the products. On the other hand Period, the cost is not a part of the manufacturing process, and that is why the cost cannot be assigned to the products.