Usability includes methods of measuring usability, such as needs analysis and the study of the principles behind an object's perceived efficiency or elegance.
Crowne Burial Vault. The burial vault is a waterproof container designed for earth burial. Made in America and constructed of high technology polymer, it is strong enough to withstand the weight of earth-moving and cemetery maintenance equipment.
Basements get wet. From poured concrete foundations to monolithic, stone, block or tile basement walls, no basement is safe from water leaking. Water can find its way in through basement walls, floors, and floor joists.