Primary Needs
Product is aesthetically pleasing.
Product is right size (for your object).
Product stays with the user through vigorous motion.
Product is durable.
Product is right price for the value.
Product leaves the user hands-free/does not require continual use of hands.
Solutions to subproblems in isolation
Product is aesthetically pleasing.
Aesthetically pleasing solutions: products that use circles, leather goods, colorful products, clear/glass
Product is right size (for your current object).
Variable size solutions: product stretches(lycra, elastic, etc), product accordions, product folds, product molds, product self-adheres
Product is durable.
Durable product solutions: product made of metal, product made of canvas, product made of leather
Product leaves the user hands-free/does not require continual use of hands.
Hands-free solutions: backpacks, pockets, hovering device that carries your things, conveyor belt that carries things and moves them about the room with you.
Decomposition by Sequence of User Actions
Sequences:
User Energy - Signal - Product Material
User carries product around-> Is the stuff secure? -> Is it in the way?
User packs -> Product holds -> User unpacks -> Product vacates-> Still need to carry stuff?-> Product holds
Product holds-> Is it in the way? -> Product makes itself discrete/unobtrusive-> Is the stuff secure in the product?
Product holds-> User unpacks-> Product vacates-> Still need to carry stuff?-> Product makes itself discrete/unobtrusive
Sequence subproblems
Unobtrusive+holds
Solutions: cubby, bag check, leave it behind and come back for it
Secure+holds
Solutions: stash under clothes, give it to a friend/trusted party
Secure+Reusable
Solutions: locks, floor/wall safes
Decomposition by Function
Functions: holds, accessorizes
Holding
Solutions: cup, bucket, box, book bag, bowl, purse
Accessorizing
Solutions: hat, scarf, jacket, belt, collar, handkerchief, shoes
10 Alternatives
a. accordion bag
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