- published: 17 Aug 2015
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Maintenance, repair, and operations (MRO) or maintenance, repair, and overhaul involves fixing any sort of mechanical, plumbing or electrical device should it become out of order or broken (known as repair, unscheduled or casualty maintenance). It also includes performing routine actions which keep the device in working order (known as scheduled maintenance) or prevent trouble from arising (preventive maintenance). MRO may be defined as, "All actions which have the objective of retaining or restoring an item in or to a state in which it can perform its required function. The actions include the combination of all technical and corresponding administrative, managerial, and supervision actions."
MRO operations can be categorised by whether the product remains the property of the customer, i.e. a service is being offered, or whether the product is bought by the reprocessing organisation and sold to any customer wishing to make the purchase. (Guadette, 2002)
The former of these represents a closed loop supply chain and usually has the scope of maintenance, repair or overhaul of the product. The latter of the categorisations is an open loop supply chain and is typified by refurbishment and remanufacture. The main characteristic of the closed loop system is that the demand for a product is matched with the supply of a used product. Neglecting asset write-offs and exceptional activities the total population of the product between the customer and the service provider remains constant
Andrew Jackson (March 15, 1767 – June 8, 1845) was the seventh President of the United States (1829–1837). Based in frontier Tennessee, Jackson was a politician and army general who defeated the Creek Indians at the Battle of Horseshoe Bend (1814), and the British at the Battle of New Orleans (1815). A polarizing figure who dominated the Second Party System in the 1820s and 1830s, as president he destroyed the national bank and relocated most Indian tribes from the Southeast to west of the Mississippi River. His enthusiastic followers created the modern Democratic Party. The 1830–1850 period later became known as the era of Jacksonian democracy.
Jackson was nicknamed "Old Hickory" because of his toughness and aggressive personality; he fought in duels, some fatal to his opponents. He was a rich slaveholder, who appealed to the common men of the United States, and fought politically against what he denounced as a closed, undemocratic aristocracy. He expanded the spoils system during his presidency to strengthen his political base.