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¶ … JIT Companies
There are a number of instances where JIT manufacturing procedures would be totally inappropriate. For most companies in various types of service industry, JIT practices would seem inappropriate. This goes into play even more when considering the specialty foods service industry. JIT manufacturing depends on extreme consistency from suppliers; "even more taxing, suppliers have to deliver materials of uniformly high quality," where the demand is always asking for a uniform delivery of the same types of supplies (Hutchins & Slovak, 1986). In specialty food restaurants on service companies, which have been gaining popularity with an evolution in consumer trend demanding more local meats and products, companies get whatever their suppliers have on hand. The local butcher or fisherman simply brings in what they have for that day. There is no consistency and thus the principles of JIT would not work at all. Also, companies that utilize MRP II practices may want to avoid JIT manufacturing styles as well because it may "prevent...
MRP II is much more of a computer-based system, whereas JIT manufacturing relies more so on human-driven push systems. As such, JIT may interfere with the set up already put into place by the use of MRP II systems, making it inappropriate to use in such situations. One such company that has used MRP II for an extended period of time is Coca Cola. They always have a high demand, and thus MRP systems work better because it automates elements of inventory. They already have a steady pull system and thus do not need to try to estimate their weekly and monthly production in order to save in unused inventory because they have such a strong and steady demand for the product. They should not utilize JIT because there are relatively little fluctuations in supply and demand, and JIT would only confuse the already established and successful MRP II system already in place.
Question 2
There are different scheduling procedure needs for various types…
References
Chong, Jason, Liu, Bin, Zhang, Zhiru. (Web). Scheduling with soft constraints. ICCAD, 2(2009). Web. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.159.8326&rep=rep1&type=pdf
Hutchins, Dexter & Slovak. (1986). Having a hard time with Just-in-Time manufacturing: U.S. companies are finding the Japanese method of inventory control trickier than they thought. CNN Money. Web. http://money.cnn.com/magazines/fortune/fortune_archive/1986/06/09/67676/
Karmarkar, Uday. (1989). Getting control of Just-in-Time. Northwestern University. Web. http://www.kellogg.northwestern.edu/course/opns430/modules/lean_operations/karmarkar.html
Xu, Jiajie, Liu, Chengfei, Zhao, Xiaobui, & Yongchareon. (2010). Business process scheduling with resource availability constraints. OTM. Web. http://link.springer.com/chapter/10.1007/978-3-642-16934-2_30#page-2
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