Match these design terms with their meanings $.$ Delayed differentiation Normal operating conditions A strategy of producing $1.2$ standardized goods or services $,$ but $3.$ incorporating some degree of customization $.$ The process of producing $,$ but not quite completing $,$ a product or service until customer preferences are known $.$ A form of standardization in which component parts are grouped into modules that are easily replaced or interchanged $.5$ The ability of a product $,$ part $,$ or system to perform its intended function under a prescribed set of conditions $.6$ Situation in which a product $,$ part $,$ or system does not perform as intended $.$ The set of conditions Modular design $4.$ Failure Mass customization Reliability