Thursday, October 3, 2019
Multiple Churn Prediction Techniques And Algorithms Computer Science Essay
Multiple Churn Prediction Techniques And Algorithms Computer Science Essay Abstract-Customer churn is the business term that is used to describe loss of clients or customers. Banks, Telecom companies, ISPs, Insurance firms, etc. use customer churn analysis and customer churn rate as one of their key business metrics, because retaining an existing customer is far less than acquiring a new one. Corporates have dedicated departments which attempt to win back defecting clients, because recovered long term customers can be worth much more to a company than newly recruited clients. Customer Churn can be categorized into voluntary churn and involuntary churn. In voluntary churn, customer decides to switch to another service provider, whereas in involuntary churn, the customer leaves the service due to relocation, death, etc. Businesses usually exclude involuntary churn from churn prediction models, and focus on voluntary churn, because it usually occurs due to company-customer relationship, on which the company has full control. Churn is usually measured as gross churn and net churn. Gross churn is calculated as loss of previous customers and their associated recurring revenue, generated by those customers. Net churn is measured as sum of Gross Churn and addition of new similar customers. This is often measure as Recurring Monthly Revenue (RMR) in the Financial Systems. INTRODUCTION Predicting and preventing customer churn is becoming the primary focus of many enterprises. Every enterprise wants to retain its each and every customer, in order to maximize maximum profits and revenue from them. With the introduction of business and management systems, and automation of operation flow, corporates have gathered lots of customer and business related data during the daily operating activities, which give data mining techniques a good ground for working and predicting. Lots of data mining algorithms and models have emerged to rescue from this issue of customer loss. These algorithms have been widely used, from past decades, in this field. For prediction of customer churn, many algorithms and models have been applied. Most common of them are Decision tree [1], Artificial Neural Network [2], Logistic Regression [8]. In addition, other algorithms such as Bayesian Network [4], Support Vector Machine [], Rough set [5], and Survival Analysis [6] have also been used. In addition of algorithms and models, other techniques, such as input variable selection, feature selection, outlier detection, etc. have also been applied to get better results out of the above algorithms. First three models i.e. Decision tree, Artificial Neural Network and Logistic Regression have been applied maturely at multiple corporates. Each algorithm has been improved over multiple iterations, and are now pretty much stable. But as the operation and activities of business are growing, it is becoming more and more complex challenge to solve the problem of customer churn, and this is requesting for the generation of new churn prediction models, which are fast and robust, and which can quickly be trained and scored on large amounts of data. Literature review Jiayin and Yuanquan [1] presented a step by step approach on selecting effective input variables for customer churn prediction model in telecommunication industry. In telecommunication industry, there are usually very large number of input variables is available for churn prediction models. Of all these variables, there could be variables which have positive effect on the model, and few which are redundant. These redundant variables cause overload for the churn prediction model. So it is always better to select only important features and remove redundant, noisy and less informative variables. In their study, they have proposed Area under ROC (AUC) method for calculating classifying abilities of the variable, where ROC is Receiver Operating Characteristics, and then selecting variables which have the highest classifying abilities. In addition, he also proposed to compute mutual information among all selected variables and finally selecting variables which have relatively low mutual i nformation co-efficient. Huang and Kechadi [11] proposed a new technique for Feature Selection for the churn prediction models. As their primary focus was telecommunication industry, and in telecom the amount of input variables / feature is very large, and it is always better to select a subset of features, which have the most ability to classify the target classes. Otherwise running algorithm on all the input variables will be too much to time and resource consuming. Most commonly used techniques for selection of features only judges whether an input feature is helpful to classify the classes or not. The approach proposed by them takes into account the relationship between the specified categorical value of the feature and a class for selecting or removing the feature. Luo, Shoa and Lie [2] proposed the customer churn prediction using Decision Tree for Personal Handyphone System Service (PHSS), where the number of variables in input data set is very small. Decision Tree is probably the most commonly used data mining algorithm. Decision Tree model is a predictive model that predicts using a classification process. It is represented as upside down Tree, in which root is at the top and leaves are at the bottom. Decision Trees is the representation of rules. This helps us in understanding, why a record has been classified in a particular way. And these rules can be used to find records that fall into some specific category. In their work they found out the optimal values of input dataset with reference to time sub-period, cost of misclassification and sampling method. With their research, they came up to conclusion that 10-days of sub-period, 1:5 cost of misclassification and random sampling method are the most optimal parameters when training a data m odel using decision trees, when the number of input variables is very small. Ming, Huili and Yuwei [4] proposed a model for churn prediction using Bayesian Network. The concept of Bayesian Network was initially proposed by Judea Pearl (1986). This is a kind of graphics mode used to show the joint probability among different variables. It provides a natural way to describe the causality information which could be used in discovering the potential relations in data. This algorithm has been successively used in knowledge representation of expert system, data mining and machine learning. Recently, it has also been applied in fields of artificial intelligence, including causal reasoning, uncertain knowledge representation, pattern recognition cluster analysis and etc. A Bayesian network consists of many nodes representing attributes connected by some lines, so the problems are concerned that more than one attribute determine another one which involving the theory of multiple probability distribution. Besides, since different Bayesian networks have different structures and some conceptions in graph theory such as tree, graph and directed acyclic graph can describe these structures clearly, graph theory is an important theoretical foundation of Bayesian networks as well as the probability theory, thus the results of Customer Churn using Bayesian network are very promising. Jiayin, Yangming, Yingying and Shuang [10] proposed a new algorithm for churn prediction and called it TreeLogit. This algorithm is combination of ADTree and Logistic Regression models. It incorporates the advantages of both algorithms and making it equally good as TreeNetà ® Model which won the best prize in 2003 customer churn prediction contest. As Treelogit combines the advantages of both base algorithms so it becomes very powerful tool for customer churn prediction. The Modeling process of TreeLogit starts by Designing Customers character variables based on prior knowledge. Then the character variables are categorized into m sub-vectors, and a decision tree for each sub-vector is created. Once we have the decision tree for each sub-vector, then we develop logistic regression models for each sub-vector. And finally we evaluate the accuracy and interpretability of the model. If they are acceptable then the customer retention process is started, otherwise the model is re-tuned for better results. Jing and Xinghua [5] in their work on customer churn prediction, presented a model based on Support Vector Machines. Support Vector Machines are developed on the basis of statistical learning theory which is regarded as the best theory for the small sample estimation and predictive learning. The studies on the machine learning of finite sample were started by Vapnik in sixties of last century and a relatively complete theoretical system called statistical learning theory was set up in nineties. After that, Support Vector Machines, a new learning machine was proposed. SVM is built on the structural risk minimization principle that is to minimize the real error probability and is mainly used to solve the pattern recognition problems. Because of SVMs complete theoretical framework and the good effects in practical application, it has been widely valued in machine learning field. Rough set Xu E, Liangeshan Shao, XXuedong Gao and Zhai Baofeng introduced Rough set algorithm for customer churn prediction [2]. Dengh Hu also studied the applications of rough set for customer churn prediction[5]. According to them, Rough set is a data analysis theory proposed by Z. Pawlak. Its main idea is to export the decision or classification rules by knowledge reduction at the premise of keeping the classification ability unchanged. This theory has some unique views such as knowledge granularity which make Rough set theory especially suitable for data analysis. Rough set is built on the basis of classification mechanism and the spaces partition made by equivalence relation is regarded as knowledge. Generally speaking, it describes the imprecise or uncertain knowledge using the knowledge that has been proved. In this theory, knowledge is regarded as a kind of classification ability on data and the objects in the universe are usually described by decision table that is a two-dimensional t able whose row represents an object and column an attribute. The attribute consists of decision attribute and condition attribute. The objects in the universe can be distributed into decision classes with different decision attributes according to the condition attributes of them. One of the core contents in the rough set theory is reduction that is a process in which some unimportant or irrelevant knowledge are deleted at the premise of keeping the classification ability unchanged. A decision table may have several reductions whose intersection was defined as the core of the decision table. The attribute of the core is important due to the effect to classification. Survival Analysis Survival analysis is a kind of Statistical Analysis method to analyze and deduce the life expectancy of the creatures or products according to the data comes from surveys or experiments. It always combines the consequences of some events and the corresponding time span to analyze some problems. It was initially used in medical science to study the medicines influence to the life expectancy of the research objects. The survival time should be acknowledged widely, that is, the duration of some condition in nature, society or technical process. In this paper, the churn of a customer is regarded as the end of the customers survival time. In the fifties of last century, the statisticians began to study the reliability of industrial products, which advanced the development of the survival analysis in theory and application. The proportional hazard regression model is a commonly used survival analysis technique which was first proposed by Cox in 1972. CRITICAL REVIEW Jiayin and Yuanquan [1] proposed a very simple method for the variable selection. The method proposed is very effective and practical, But there are more systematic methods available, which use advance neural network, induction algorithms and rough set. Huangs and Kechadis [11] concept for taking into account the categorical values into account when feature selection is being performed, is good. But their concept is limited to categorical values and continues values cant be applied on their approach. Continues values need to be discretized into categorical values, before their feature selection concept could be applied, but this conversion from continues to discrete may result in loss of information. Luo, Shoa and Lie [2] selected Decision Tree as their choice of data mining algorithm for churn prediction, which is the simplest and understandable algorithm for classification. Its simplicity also makes it the most widely used algorithm. But decision tree has its own limitations, they are very unstable and a very little change in the input variables, such as addition of newer ones, require rebuilding and re-training of complete decision tree. In addition, they should have also focused on how to enrich the input variables, by adding new derived variables that could enhance the efficiency of the model. Ming, Huili and Yuwei [4] Bayesian network model has advantages and some short comings. It has the ability to product best results even when the input datasets are incomplete. In addition, it has the ability to take connections into account when predicting churn and to take prior knowledge into consideration. This algorithm also has the ability to effectively prevent over fitting. But if the dataset is large, the structure learning of the Bayesian networks will be too difficult. Thus this model is not fit for telecom, where the dataset is always very large. Jiayin, Yangming, Yingying and Shuang [10] TreeLogit combines the advantages of both algorithms i.e. ADTree and logistic regression, thus it is both data-driven and assumption-driven and it has the capability of analyzing objects with incomplete information. Moreover, its efficiency is not affected by the bad quality data and it generates continues output with relatively low complexity. Jing and Xinghua [5] used Support Vector Machine algorithm for Churn Prediction. This algorithm is best if you have a limited number of sample records, but on the other hand its theory is very complex and there are many variations in it. So it is difficult to find the version which best suites your problem. Conclusion There are multiple solutions available for customer churn prediction. Each has its own advantages and disadvantages. So a single solution might not be best for any organization. The organization may have to use the combination of algorithms and techniques to get the best results for churn prediction.
Wednesday, October 2, 2019
stage :: essays research papers
Introduction Jââ¬â¢ai rà ©alisà © mon stage commercial chez Pernod Ricard Venezuela. Jââ¬â¢ai choisi cette entreprise afin de dà ©couvrir avec le fonctionnement dââ¬â¢un service commercial, et dââ¬â¢avoir une premià ¨re expà ©rience professionnelle dans mon pays dââ¬â¢origine. Au sein de PRV on mââ¬â¢a confià © une mission dââ¬â¢investigation afin dââ¬â¢optimiser les nà ©gociations du dà ©partement commercial. Jââ¬â¢ai dà » analyser lââ¬â¢impact de publications et des exhibitions nà ©gocià ©es par lââ¬â¢Ã ©quipe de vente. De plus jââ¬â¢ai dà » rà ©aliser une proposition merchandising pour une chaà ®ne de supermarchà © qui est en train de restructurer sa dà ©marche auprà ¨s des clients. Ainsi dans ce rapport, je vous prà ©senterai en premià ¨re partie lââ¬â¢entreprise, son historique, ses employà ©s, le service commercial et son marchà ©. En deuxià ¨me partie je dà ©finirai en dà ©tail les actività ©s menà ©es pour rà ©aliser la mission qui me fut confià ©e et pour atteindre mes objectifs personnels. I Lââ¬â¢entreprise et son marchà © I.1 Prà ©sentation de lââ¬â¢entreprise Raison Sociale: PERNOD RICARD VENEZUELA Forme Juridique : Compagnie Anonyme Capital Social : 17 000 000 â⠬ Nom du Directeur : M. Elvis IPPOLITTI Adresse : Avenida Rio de Janeiro Edif. Centro Rio de Janeiro, PH Las Mercedes, Municipio Baruta Caracas 1060 - VENEZUELA Tà ©là ©phone : (58-212) 200 72 00 Fax : (58-212) 200 72 99 Date de crà ©ation : 2002 Secteur dââ¬â¢actività © : vente et distribution de vins et spiritueux Chiffre dââ¬â¢affaires : 45 075 000 â⠬. Effectif : 110 personnes I.2.A Historique Fortement implantà ©e sur tous les continents, Pernod Ricard est l'un des trois premiers opà ©rateurs de spiritueux et vins dans le monde. Depuis sa crà ©ation en 1975, une forte croissance interne et des acquisitions ambitieuses ont permis au Groupe de dà ©velopper l'un des portefeuilles de produits les mieux dotà ©s du secteur. Le Groupe dispose de rà ©seaux de distribution puissants sur tous les continents et aujourd'hui, plus des quatre cinquià ¨mes du chiffre d'affaires sont rà ©alisà ©s hors France : 40 % en Europe, 22 % dans les Amà ©riques et 22 % dans le reste du monde. Dans la catà ©gorie des spiritueux internationaux, Pernod Ricard est numà ©ro 1 en Europe Continentale et en Irlande, numà ©ro 1 en Amà ©rique Centrale et du Sud et numà ©ro 2 en Asie-Pacifique. Il se situe au sixià ¨me rang en Amà ©rique du Nord. Le Groupe est par ailleurs numà ©ro deux du secteur "Travel Retail" Quelques Dates Importantes 1975 France : Crà ©ation de Pernod Ricard par la fusion des deux socià ©tà ©s dà ´anisà ©s Pernod et Ricard. Le group inclus aussi JFA PamprylÃâ°cosse : Acquisition de Campbell Distillers (Scotch whiskies) 1982 Monde : Acquisition de SIAS MPA, producteur numà ©ro un au niveau de concentrà ©s de fruits. Pour la premià ¨re fois, les actività ©s du groupe sont gà ©rà ©es depuis la France.
Tuesday, October 1, 2019
Piercing the Corporate Veil Essay -- Papers
Piercing the Corporate Veil Since the establishment in Salomon v Salomon, the separate legal personality has been long recognised in English law for centuries, that is to say, a limited liability company has its own legal identity distinct from its shareholders or directors. However, in certain circumstances the courts may be prepared to look behind the company at the actions of the directors and shareholders. This is known as "piercing the corporate veil". There are numerous cases concerning the "piercing the corporate veil", among which, Jones v Lipman[1] was a typical case. Lipman sold land to Jones by a written contract but refused to complete the sale because of another good deal, instead he offered damages for breach of contract. To put the house out of reach of Jones, he bought a company "off the shelf" and conveyed the house to it. In an action against Lipman and the company, the court granted the specific performance and ruled that "the defendant company is the creature of the first defendant, a device and ...
Is It Safe To Travel By Airplanes Engineering Essay
About five hundred old ages back, the sum of clip required to go a thousand stat mi was more than yearss and sometimes even months. Back so, the ordinary people used to go by pes and merely the rich could afford carnal driven carts. This wastage of clip was reduced by the debut of engine powered autos and trains. Even though these vehicles were faster than the carnal driven carts, it still took yearss to go around 1000 stat mis. Therefore another agency of transit had to be invented by which this clip wastage could be diminished. Thus the Wright brother ââ¬Ës was able to do the first plane, which could go much faster than the trains and autos. Thus the clip required to go was drastically decreased by the innovation of planes. Due to the immense progresss in engineering in the twenty-first century, there are planes that can go even faster than sound. These planes take less than an hr to go more than thousand stat mis. Travel by the agencies of air has become the most fastest and co mmon method of conveyance particularly for great distances. At the present state of affairs, we can go around the universe in less than a twenty-four hours unlike the yesteryear when it used to take months to make so. Therefore we can now go anyplace in the universe by the clip we have a little sleep and a java. But as in most instances of technological promotions, we can non accomplish such great effort without a monetary value. One such monetary value we had to pay over and over once more is the lives of the person that was lost in the legion aeroplane clangs we had of all time since we started utilizing the aeroplane. The aeroplane clangs have claimed oven 10 thousand lives in the last decennary in over 1800 accidents. Though the figure of accidents has been reduced to half the figure a decennary back, the figure of decease tolls has n't decreased much. This is because as the engineering increased, the figure of riders on a flight additions. Earlier merely about 100 people could go in a plane and now there are flights that can suit more than 500. Thus the figure of riders involved in one accident increased and even though there are fewer accidents, two or three are adequate to take more than 10 00 lives. Aviation human deaths have existed since the clip of the innovation of planes. The first of it happening on one of the theoretical accounts of the Wright brothers doing decease of a rider on board and hurts to Orville Wright himself. Get downing that incident certain safety characteristics were added to the plane in order to cut down accidents. The air power safety equipment industry has become a really large one and now is a billion-dollar industry on its ain. The air power safety has improved significantly over the past hundred old ages of its execution. Over the last few old ages more than 95 % of the people in U.S. plane clangs have survived as a consequence of the new safety characteristics introduced in them. One of the most terrific air power accidents was the Tenerife incident. It is the catastrophe that has caused the highest figure of human deaths. More than five 100 50 people died in this catastrophe. This occurred when a KLM Boing 747 collided with a Pan Am747 at Los Rodeos Airport in Spain. The cause of the clang was the pilot ââ¬Ës mistake. The pilot of the KLM flight attempted to takeoff without clearance and collided with the taxiing Pan American flight. This incident was wholly the error on the side of the pilot but there are certain 1s that are besides caused due to mechanical failure. The clang of the JAL Flight 123 was one such instance. About five 100s 20 were dead in this accident when the aircraft underwent an explosive decompression due to an falsely repaired aft force per unit area bulkhead. This occurred in mid flight and destroyed most of the flights perpendicular stabilizer. This besides severed all of the hydraulic lines, doing it virtually unmanageable. In this instance the pilots were more experience but their experience could merely maintain the plane winging for a few more. The plane eventually crashed into a mountain doing it the single-aircraft catastrophe with the most figure of human deaths. This was a instance of chiefly mechanical jobs and non the pilot ââ¬Ës mistake. The debut of the airborne hit turning away system was done after the 1996 Chakhri Dadri mid-air hit. In this accident a Saudia Flight 763 crashed on an Air Kazakhstan flight 1907 when the Kazakh pilot was winging lower than the height he was given clearance to. This accident claimed 349 lives, which includes all the crew and riders aboard both the flights. The airborne hit turning away system gives information about any aircrafts or winging objects nearby thereby assisting the pilot to alter its class in order to forestall hit. As the engineering became advanced, the velocity with which the aircrafts could wing increased every bit good as the safety characteristics required to go at those velocities. One of the greatest planes of all time made was the Concorde. It was considered as an air power icon and an technology wonder. This aeroplane was powered by a fanjet engine, which made it possible for it to go faster than sound. This supersonic rider plane made the clip required to go to any topographic point half the current clip required. The production of these planes was stopped shortly after the Air France flight 4590 ââ¬Ës clang. This was a Concorde flight scheduled from Charles de Gaulle airdrome to JKF airdrome. It crashed into a hotel in Gonesse, France shortly after its takeoff. All nine crewmembers and one hundred riders on board could non last the accident. This incident took topographic point due to a concatenation of mistakes and the chief one being transcending the maximal takeoff weight bound . This bound was non exceeded by a little sum but by a ton. Though the flight could hold handled this inordinate weight, the flight could non takeoff decently because the centre of gravitation of the whole weight was concentrated on the rear of the flight. Besides a Ti metal strip fell out of a Continental Air flight during takeoff five proceedingss before the takeoff this flight. The runway staff did non make the necessary measure to inspect the track and take this seventeen-inch long dust. It was a portion of the protocol for Concorde takeoff readying that the track should be inspected before takeoff. As a consequence of this debris lying on the track, it cut a Sur of the Concorde flight tearing it. Due to the centripetal forces, a piece from the Sur that weighed ten lbs struck the bottom of the aircrafts flying construction with velocity more than 300 miles per hour. Though this did non straight tear any fuel armored combat vehicles, it send out a force per unit area moving ridge doing one of its fuel armored combat vehicle to tear at its weakest point. This was the fuel armored combat vehicle that was overfilled before during fuel transportation. Either the electric discharge of the landing cogwheel or some severed electric overseas telegram ignited the leaking fuel. Due to this fire, both engine one and two surged and lost all its power. But after a few seconds, engine one recovered but a big fire was developed around the 2nd engine. Thus the First Engineer had to close down the engine two in order to forestall spreading of fire. Since the flight had crossed the minimal velocity to takeoff, the crew continued takeoff, but the crew was non able to make so decently with the staying three engines as the cut off overseas telegrams prevented the abjuration of the undercarriage. Thus the plane could non derive a velocity more than 200 knots and a maximal height of 200 foot. The increasing fire caused the wing to disintegrate due to highly high temperature. The Engine one surged once more but failed to retrieve this clip. Due to the uneven push on the flight, the flight started to bank to one side for more than 100 grades. The crew seeking to level the plane, slowed down the other two engines. This caused the flight to free it airspeed and made it impossible for the crew to command it and the plane started to procrastinate and accordingly clang. After this clang, the usage of Concorde flights for rider transit was stopped until the probe of this instance was done. The people to be held responsible were the land staf fs who were responsible to do certain that the track was clear. ââ¬Å" Experts claim the supersonic aircraft hit a piece of isolated Ti from another aircraft, puncturing its Sur which set off a concatenation reaction that caused the catastrophe. ââ¬Å" ( Airline Industry Information, 2004 ) . If the land staff would hold done review decently, the whole catastrophe could hold been prevented. Another incident occurred when the Uruguayan Air Force flight 571 transporting 45 people, including a rugger squad crashed into Andes. More than 10 people died in the clang and some others by the hurts and the cold conditions. But the remainder was rescued after 70 yearss of this incident. This accident was because of the bad conditions, which restricted the flight of the plane above 30000 pess. Besides the whole country of the mountains was covered in clouds, which lowered the visibleness of the pilot. Due to low visibleness the plane crashed into a extremum, which caused wreckage to one of its wings thereby taking the control out of the pilot and crashing the plane. Though the pilot was non cognizant of these state of affairss, the copilot was. ââ¬Å" The pilot had non been winging the plane, but the co-pilot had crossed the Andes before. â⬠( Read, 1975 ) . The co-pilot still could non salvage the plane but made his best to make so. One of the accidents that has been caused due to mechanical failures and no crew could hold avoided was the Valujet Flight 592 incident. It claimed 110 lives in that accident. This was because of some expired O generators place in the lading compartment by the care contractors of Valujet. There was a little fire in the lading compartment and harmonizing to normal processs the fire would hold extinguished itself as this was an air-tight compartment and every bit shortly as the O supply in this compartment was finished, the fire would snuff out itself. But the O generators produced more O doing the fire to increase and get away that compartment. This caused a force per unit area difference aboard and made the pilot free his control. The Fire eventually spread throughout the plane. This was n't the mistake of the crewmembers but the mistake of the care company. ââ¬Å" No air hose forces made any errors in the operation of the plane ; an O generator accident could hold occurred on any a ir hose. In short, ValuJet was below the belt criticized for an accident that had nil to make with the operation of the plane. ââ¬Å" ( Cobb, 2003 ) Not merely mechanical failure and pilot mistake, but besides the Acts of the Apostless of terrorist act has proved to be one of the major causes of air clangs. One of the major victims of the terrorist onslaught was the Air India flight 182. This plane crashed off the southwest seashore of Ireland when a bomb held in the lading went away. Everyone aboard the flight died including 22 crewmembers doing a sum of 329. This was the act of the Sikh extremists revenging the onslaught of the authorities on the Golden Temple. The bomb was kept in a bag of a rider who did non board the flight but his luggage did. Thereafter this event certain security steps were maid to guarantee that the luggage ââ¬Ës of any individual non going was to be offloaded of the plane before its takeoff. The terrorist bombardment of the Pan American flight 103 in Scotland which claimed the lives of 243 riders, 16 crew and 11 people on the land made the security regulations mandatory in all American flights winging out of the 103 airdromes in the Western Europe and Middle East. New stairss such as X-radiation or physically analyzing all the checkered luggage and besides to increase the showing of the riders. The governments argued that though it may be a waste of clip but still safety has its value. In fact all the promotions in safety through regulations and ordinances have come merely as a consequence of loss of legion lives and if farther promotions have to be made, it ca n't be done without farther loss of life. Another major air power catastrophe occurred when the American Airlines flight 587 crashed into the Belle Harbor vicinity of Queens, New York. The flight had merely departed the JFK international airdrome and the accident occurred when the first officer overused the rudder in response to wake turbulency from a Japan Airlines 747. It claimed the lives of all 260 people on board and besides five people on land. This was another accident caused due to human carelessness. A similar state of affairs was at that place aboard the Egypt air flight 990 crashed into the Atlantic Ocean in the international Waterss. Harmonizing to the study given by the National Transportation Safety Board, the pilot intentionally plunge the aircraft into the H2O. But the Egyptians deny this decision and say that it was a mechanical failure. Although if we look at these accidents late we can see they were largely caused by bad determinations made by worlds. So this brings up the inquiry, is it the planes or the pilots that are more unsafe? As we can see from the old paragraph, most of the crashes/accidents that happened will non go on once more as necessary safety safeguards have been made and the flights are equipped with certain new devices in order to forestall most of the accidents mentioned before. Equally far as the instance of human mistakes, the planes are fitted with machine-controlled systems wherever possible but still there are certain countries where the unreal intelligence is non plenty. Therefore it is right now non possible to take the human portion from the control of the flights. Possibly in future there may be a possibility of human less aircrafts. There are certain clangs caused due to miss of concentration of the pilots. This is when pilots with immense experience do non care much and feel overconfident. One such instance was in 2007, when two Air Patrol pilots with a sum of 53,000 hours experience crashed onto 8000-foot mountain. This happened when one of the pilots was demoing the other a presentation of the plane itself. He did non be after the path in front and did non pay concentration to the terrains in that country. This besides happens to some of the new pilots. Some of the inexperient pilots do non stay by the regulations and cause clangs. Besides distractions cause the pilots to divert from the program and may do the plane to clang. It is most frequently the sloppiness of the pilots that cause the lives of many. â⬠Pilots sometimes skip flight planning and abbreviate checklists when they are ââ¬Å" merely making a short hop. â⬠( Hopkins, 2012 )
Monday, September 30, 2019
How Technology and Environment Might Influence the Structure of an Organisation
Student Name: Adeniyi Adebowale Module: Principles of Organising and Managing Student Number: 500188225 Due Date: 15th of March, 2010 Title: Explain how technology and environment might influence the structure of an organisation; support your answer with examples. Paragraphs: 25 Charles Perrow (1974) suggests that there are four types of technology that determines an organisation's most effective structure and success in the market. The following are the types of technology: Non-routine Technology are characterized by high task variability and low task analyzability, examples include tasks performed by research chemist, advertising agencies, high-tech product designers and top management teams. With this type of technology, an organization has to develop structure that allows employees to respond quickly to manage exceptions and create new solutions like an organic structure. Engineering Technology is characterized by high task variability and high task analyzability, examples of these includes civil engineering companies that build roads and bridges another example includes motor manufacturers that produce customized cars. Craft Technology is characterized by low task variability and low task analyzability, examples includes an accountant preparing a tax return and a plumber fitting a bath or shower. Robbins (1993) further argued that technology has and will continue to influence growth and development in organization. Technology has made a fundamental impact in the education sector, providing a competitive advantage that has come to be essential to many organizations. For example, education institutes must also use technology to improve the educational learning process. In the past decade, computers and the Internet have changed the way in which education can be delivered to students since it is currently possible to engage in distance education through the Internet. There are two means in which technologies can be used in delivering education to students and they are listed below: Synchronous Technologies is a mode of online delivery where all participants are ââ¬Å"presentâ⬠at the same time requiring a timetable to be organized. Web Conferencing is an example of synchronous technology. Asynchronous Technologies is a mode of online delivery where participants access course materials on their own schedule. Students are not required to be together at the same time. Message board forums, e-mail and recorded video are examples of asynchronous technology. draw:frame} {draw:frame} Source: Andrzej Huczynski and David Buchanan (2001), page 36. Placid, Randomized Placid, Clustered Disturbed, Reactive Turbulent Fields {draw:frame} The figure below outlines the suggested points in details: Source: Andrzej Huczynski and David Buchanan (2001), page 49. Source: Andrzej Huczynski and David Buchanan (2001), page 47 References Stephen P. Robbins, 1993, Or ganizational Behaviour, 6th Edition, Prentice Hall International, U. S. A. Stephen P. Robbins, 1994, Management, 4th Edition, Prentice Hall International, U. S. A. David Faulkner, 2002, Strategy_: Critical Perspective on Business and Management_, Volume 1, U. K. Lloyd S. Baird, James E. Post and John F. Mahon, 1990, Management: Function and Responsibilities, Harper Collins Publisher, U. S. A. Harold J. Leavitt, Louis R. Pondy, and David M Boje, 1988, Readings in Managerial Psychology, 4th Edition, The University of Chicago Press Ltd. U. S. A. Charles Perrow, 1974, Organizational Analysis: A Social View, Tavistock Publications, London, U. K. Alan Fox, 1974, Beyond Contract: Work, Power and Trust Relations (Society Today and Tomorrow), Faber Publishing, London, U. K.
Sunday, September 29, 2019
Map the Supply Chain Paper Essay
Introduction Prior to developing a supply chain map, it is important to identify and understand the nature of the plan, the importance of mapping, and the role the map plays in the strategy. The supply chain represents all companies that are in contact with a particular product. The supply chain is a network, which outlines the steps it takes to get a good or service from production to the final customer. The map links strategic processes of a firm to facilitate the evaluation of supply chain structure. In short, the supply chain categorizes the responsibilities of the manufacturer, distributor, dealer so duties avoid overlapping or duplication. The goal of a supply chain is to become more effective and efficient, which gives a competitive advantage over other competing supply chains. The following will map the supply chain of Pepsi-Cola beverage. The map will illustrate the process of manufacturing the product and continue until the retailer passes the product to the consumer. In the preceding supply chain map, the manufacture and distributor are both part of PepsiCo. The retailer makes up all grocery stores, convenience stores, and mass merchandise stores. Manufacturer Pepsi-Cola beverage is a favorable soft drink beverage that drinkers have become accustomed to its unique flavor. In order to ensure product consistency, around the world, manufacturing must follow strict guidelines. These guidelines include the quality of raw materials, ensure packaging meets company standards, finished product quality meets specifications, and ingredients are similar. To provide consistency in product quality is crucial to outline the supply chain tasks for the manufacturer. The functions of the manufacturer are specific to product quality, packaging, and shipping a high quality finished product to the operations facilities. Following the supply chain map in manufacturing outlines the duties ofà manufacturing that ensure the product formula is identical regardless of which manufacturer produces the product. sources raw materials, such as sugar and aluminum for cans designs the packaging and graphics determines the proper ingredients and quantities regularly calibrates and calculates the formula throughout production produces the product and ensures quality introduces new products based on customer demands ships product to sales operations Distributor The next step in the supply chain map is the distributor. Once the distributor receives the product from the manufacturer, they allocate the quantities based on retailer needs. The distributor uses their relationship to secure product displays, write product orders, extend short-term credit to the retailer, and delivers product to the retailer. Pepsi-Cola distributors also supply manpower to ensure the product makes it to the shelf is maintained daily. The product chain tasks break down the required steps a distributor is responsible for. These tasks provide efficiencies and are assigned to make sure there is zero overlapping between the manufacturer and distributor. receives shipment from the manufacturer establishes relationships with retailers extends credit to retailers breaks down orders for direct store delivery (DSD) sale, deliver, and service product at retail location. Retailer The retailer allocates a specified amount of space for Pepsi Cola. The distributor is responsible for ordering, filling, and maintaining this space. The retailer determines products placed in advertisements, based on the distributorââ¬â¢s product allowances given to the retailer. The retailer also employs customer service representatives to support customer needs and provide them with the needed services to make the exchange of products for cash value. This completed process finalizes the transfer of the product to the consumer. provides shelf and display space for Pepsi Products advertises to drive consumers to the store determines product selection based on distributorââ¬â¢s allowances employs customer service representatives to assist the consumer processes the transaction transfers possession to the consumer In the supply chain of Pepsi-Cola beverage each company has a particular role. These functions are essential to the success of providing the product to the final consumer. A successful supply chain map designates specific tasks that each company is responsible. These tasks are specific and are meant to ensure the product makes it to their business in the most efficient and effective manner. Depending on how detailed and well thought out a supply chain map is, determines whether the plan can improve the efficiency of getting the product through each company channel. Many companies strive for an optimized supply chain because it can lead to lower costs for the enterprise. Other purposes of an optimized supply chain are to eliminate issues when product flows between businesses and to create a standard throughout the global market.
Saturday, September 28, 2019
Public Law Essay Example | Topics and Well Written Essays - 750 words
Public Law - Essay Example This Act covers Great Britain matters on equality powers and has continued to fight for legislation anti-discrimination instead of a single act. This is because of power-sharing disagreements in the government. The equality law has failed since it has only produced a collision between competing equality strands. However, there must be better ways of resolving conflicts between faith-based and sexuality- based equality rights. In this regard, this essay will expound on equality law failure having produced collision between competing equality strands and better ways of resolving conflicts between-faith based and sexuality-based equality rights, in reference to the British case-law and wider international academic debate. British case law and wider international debate The British case law adopts an integrated and unitary perspective of equality law which in enforced by the commission. It also clarifies various definitions of victimization, discrimination and harassment which it applies as well as expands positive duties on public authority in terms of authority. Therefore, equality law having in reference to the new single equality Act in Britain. It will also base on the struggles outcome between competing ideologies and different interest groups. The first generation of British was under formal equality, where it demanded ââ¬Å"that likes must be treated alikeâ⬠. ... Additionally, the increase of equality and diversity is significant in the sense that it raises questions of conflicts with human rights commission. In this subtopic, the essay will set out general principles, as well as an approach to policy and equality law conflicts. Evidence to be used will be Equality Act 2006 and recent Equality Act 2010 which has established a less or more cross-ground legislative comprehensive framework which forbids discrimination on basis of protected characteristics. This will also include some of the grounds that are covered under the European Law. Power sharing disagreements Power sharing disagreements have evolved quickly within a short episode of time. This subtopic will argue on the ground that power should be shared on both sexes. This issue has imposed a huge debate on courts in regard to British case law and wider international debate which does not contain any direct protection against power sharing agreements. However, it aims at achieving modern ization, harmonization and simplification on equality law. This is in relation to several principles that declare the right to equality in all sexes and equal protection in terms of discrimination regardless of sex. The state gives a full effect on the right to equality in all its activities. Additionally, there must be no hierarchy of equality. The law does not expect women and disabled people to be treated the same way as men. Evidence will be from Discrimination Act of 2008 , British Act. Discrimination challenges Every individual has a right to treated equally and fairly. This sub-topic will explain some of the challenges that indiscrimination offers in reference to the right of individuals to fight for compensation in case of unlawful discrimination in tribunal and industrial
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