1Just-In-Time (JIT) Defined JIT can be defined as an integrated set of activities designed to achieve high-volume production using minimal inventories (raw materials, wor in process, and finished goods) JIT also involves the elimination of waste in production effort JIT also involves the timing of production resources (i!e!, parts arrive at the ne"t worstation #$ust in time%) JIT operates with ver& little #fat%'(omparison of JIT and Traditional)ssets *ecessar& to do the wor+orers,artners -ong-term relationships are unusual.endors/an&, short runs 0ew, long runs1etup2 runs1mall -arge-ot si3es/an&, small 0ew, largeDeliveries/inimal necessar& to operate /uch to offset forecast errors, late deliveriesInventor&JIT Traditional Factor0eatures of JIT 1&stems1. Small Work-in-Process Inventories.)dvantages41!Decreases Inventor& (osts'! Improves 5fficienc&6! 7eveals 8ualit& problems (see 0igure 9-1:) Disadvantages41! /a& result in increased worer idle time'! /a& result in decreased throughput rate0eatures of JIT 1&stems (continued)2. Kanban Information Flow System2. Kanban Information Flow System )dvantages41! 5fficient tracing of lots'! Ine"pensive implementation of JIT6! )chieves desired level of +I, Disadvantages1! 1low to react to changes in demand'! Ignores predicted demand patterns0eatures of JIT 1&stems (continued)3. JIT Purchasing System 3. JIT Purchasing System )dvantages41! Inventor& reduction'! Improved coordination6! ;etter relationships with vendors Disadvantages41! Decreased opportunit& for multiple sourcing'! 1uppliers must react 8uicl&6! ,otential for congestions production activities4 human relations, vendor relations, technolog&, and the management of materials and inventor& -ittle JIT focuses more narrowl& on scheduling goods inventor& and providing service resources where and when needed