We have been appointed as a Six Sigma breakthrough betterment squad to look into rework costs and inefficiencies in the company’s invoicing procedure. Our discovery betterment squad consists of representatives from the groups that provide the charge information and the groups that process the bills. At our first meeting. we listed the major stairss involved in the procedure and began building a flow diagram. Following. we looked at each measure and began detailing the sorts of jobs that are detected at that place. Finally. we listed specific activities that take topographic point to decide the person jobs that arise. On our completed flow diagram. we identified nine rework cringles in the invoicing procedure.
To gauge the cost associated with rework. each squad member took duty for one of the rework cringle. The assignment was twofold: ( 1 ) behavior a two-week survey to match the figure of bills that go through that rework cringle. and ( 2 ) take the elaborate rework activities. place who is involved. and find how much clip is spent in that activity.
We decided against executing a elaborate “time-and-motion” survey. Alternatively. we agreed that sensible estimations could be generated by the “jury method”—simply inquire the people involved to come up with a consensus estimation of the clip it takes to finish the activity.
To change over these clip estimates into dollars. one of the squad members volunteered to run into with person from the forces section to find the mean wages of the assorted clerks. supervisors. and directors who get involved in the rework cringle. ( We have a figure of clerical wage degrees in our company. and we designate them as “Grade 1. ” “Grade 2. ” etc. . with the higher wages traveling to the higher grades. )
We have conducted our surveies and are run intoing once more. Today. we will be analysing our job runs and clip estimations. ( See the attach toing tabular array of informations. The first line has the figure of bills processed in the rework cringle. The following lines are the figure of proceedingss required per bill for each individual to make the rework. Note that some of the computations have been completed for you. )