A Study About Data Warehouse Components Computer Science Essay

A Study About Data Warehouse Components Computer Science Essay A data warehouse is collection of resources that can be accessed to retrieve information of an organizations electronically stored data, designed to facilitate reporting and analysis. Definition of the data warehouse focuses on data storage. However, the means to retrieve and analyze data, to extract, transform and load data, and to manage the data dictionary are also considered essential components of a data warehousing system. Many references to data warehousing use this broader context. Thus, an expanded definition for data warehousing includes business intelligence tools, tools to extract, transform and load data into the repository, and tools to manage and retrieve metadata. Data warehousing arises in an organizations need for reliable, consolidated, unique and integrated analysis and reporting of its data, at different levels of aggregation. Data warehouse is an essential element of decision support. It aims at enabling the knowledge user to make better faster daily business decision. In order to supply a decisional database meta- data is need to enable communication between various function areas of the warehouse an ETL Tool is needed to define the warehousing process. Data Warehouse Components: The construction of a data warehouse is divided in to two stages Known as back room front room. The first ensures the building up of the warehouse database. The second provides the restitution of data from data mart in order to fulfill analystà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s demand. According to standard data warehouse architecture, the data warehouse systems are composed of : ETL or Warehousing tools Restitution Tools Meta Data ETL Tools (Extract-Transform-Load) Extract, transform, and load (ETL) is a process in database usage and especially in data warehousing that involves: Extracting data from outside sources Transforming it to fit operational needs (which can include quality levels) Loading it into the end target (database or data warehouse) Stocking the data warehouse with data is often the most time consuming task needed to make data warehousing and business intelligence a success. Extracting data for the data warehouse includes: Making ETL Architecture Choices Data Mapping Extracting data to staging area Applying data cleansing transformations Applying data consistency transformations Loading data The extract, transformation and loading process includes a number of steps: Extract The first part of an ETL process involves extracting the data from the source systems. Most data warehousing projects consolidate data from different source systems. Each separate system may also use a different data format. Common data source formats are relational databases and flat files. But sometime it includes non-relational database structures as an eg: Information Management System (IMS) Virtual Storage Access Method (VSAM) Indexed Sequential Access Method (ISAM) The streaming of extracted data source and load on-the-fly to the destination database is another way of performing ETL when no intermediate data storage is required. In general, the goal of the extraction phase is to convert the data into a single format which is appropriate for transformation processing. Transform The transform stage applies a series of rules or functions to the extracted data from the source to derive the data for loading into the end target. Some data sources will require very little or even no manipulation of data. In other cases, one or more of the following transformation types may be required to meet the business and technical needs of the target database: Load The load phase loads the data into the end target, usually the data warehouse (DW). Depending on the requirements of the organization. Some data warehouses may overwrite existing information with cumulative information. Most of time updating extract data is done on daily, weekly or monthly basis. Other data warehouse may add new data in a historicized form, for example, hourly. To understand this, consider a data warehouse that is required to maintain sales record of last one year. Then the data warehouse will overwrite any data that is older than a year. More complex systems can maintain a history and audit trail of all changes to the data loaded in the data warehouse. ETL Tool Functionalities While the selection of a database and a hardware platform is a must, the selection of an ETL tool is highly recommended, but its not a must. When you evaluate ETL tools, it pays to look for the following characteristics: Functional Capability Ability to read directly from your data source Metadata support Microsoft Office Performance Point Server One of the warehouse tools is Microsoft Office Performance Point Server. It is a software product from Microsoft for the business intelligence sector. Version 1.0 was released in November 2007. But this version 1.0 product was not officially released until November 2007. The acquisition has enabled Microsoft to add deep analytics for reports created by its Performance Point Monitoring Server. Planning component of Performance Point Server 2007 is to be discontinued in April 1, 2009. Microsoft will discontinue this product as an independent product. It is folding its Dashboard, Scorecard and Analytic Reporting capabilities in to SharePoint Server, signaling a significant change in the companys business intelligence software strategy. This Microsoft Office Performance Point Server stable release is 1.0SP2/2008 and the operating system is Microsoft Windows. This product license is proprietary EULA. Performance Point Server 2007 is fully integrated with other Microsoft Office products including Excel, Visio, SQL Server, and SharePoint Server. This server provides a planning and budgeting component which is directly integrated with Microsoft Excel and SQL Server Analysis Services. And this integration allows Performance point to join the dis-jointed systems companies use to in order to keep information accurate within all of their systems. Performance Point uses data cubes to manage the information. In 2007, Business intelligence (BI), also known as Business performance management (BPM) or corporate performance management (CPM) is a rapidly growing market owing to the ever-increasing amount of data collected by businesses about their customers. There are three types of components, Monitoring Server Operation Planning Sever Operation Management Reporter The Monitoring Server Operation has lot of the monitoring and analytical features. It includes Dashboards, Scorecards, LPIs, Strategy Maps, Filters Reports. Dashboard Designer saves content and security information to a SQL Server 2005. Database is managed through Monitoring Server. Data source connections are also made through Monitoring Server. The Planning Server is built on a SQL Server stack, with extensive use of Excel for line-of-business reporting and analysis. The Performance Point Planning Server supports a variety of management processes, which include the ability to define, modify, and maintain logical business models integrated with business rules, workflows, and enterprise data. This component is specifically designed to perform Financial Reporting. It can read the PPS Planning Financial Models directly. A development kit is also available to allow this component to report off other repositories. Oracle Business Intelligence Suite Enterprise Edition Another type of warehouse tool is Oracle Business Intelligence Suite Enterprise Edition. This is also known as OBI EE Plus. This product developer is Oracle Cooperation. Stable release is 10.1.3.4 and it release in 1st September 2009. Written language is C++ and Java. Oracle Business Intelligence Suite Enterprise Edition used operating system are Windows, Linux, Solaris, HPUX, AIX and MACOSX. This Oracles set of business intelligence tools consisting two business intelligence. There are: Former Siebel business intelligence Hyperion business intelligence. The former Siebel products were initially marketed by Oracle as Oracle Business Intelligence Enterprise Edition. The Oracle Business Intelligence Suite Enterprise Edition is used inter changeably with Oracle Business Intelligence Applications. Industry counter-part and main competitors of Oracle Business Intelligence Suite Enterprise Edition are Microsoft BI, IBM Cognos, SAP Business Objects and SAS. The full deployment of OBIEE contains the following components: Oracle Business Intelligence Publisher Oracle Business Intelligence Scheduler Oracle Business Intelligence Systems Management Oracle Business Intelligence Cluster Controller Oracle Business Intelligence Presentation Services Oracle Business Intelligence Server Oracle Business Intelligence Presentation Services Oracle Business Intelligence ODBC Driver Oracle Business Intelligence Scheduler Oracle Business Intelligence Administration Tool Oracle Business Intelligence Client Oracle Business Intelligence JDBC Driver Oracle Business Intelligence Catalog Manager Oracle Business Intelligence Job Manager There are lots of components in this product. Some of major components are; Oracle Business Intelligence Admin Tool Oracle Business Intelligence Answers Oracle Business Intelligence Server Oracle Business Intelligence Marketing Oracle Business Intelligence Interactive Dashboards Hyperion Web Analysis In this project these major components describe in detail. According to that Oracle BI Admin Tool is an administrator tool used to construct repositories consisting of a Physical Layer, Business Model and Mapping Layer, and an abstracted end-user Presentation Layer subsequently visible in BI Answers. Oracle BI Answers are an ad-hoc query and analysis tool it processes the data from multiple data sources in a pure Web environment. Users can remote from data structure complexity and they view and work with a logical view of the information. An analysis server providing a calculation and aggregation engine that integrates data from multiple relational, unstructured, OLAP, and other sources are called as Oracle BI Server. Oracle BI Marketing is which marketing needs, formerly known as Segmentation Server. And the last major component is Hyperion Web Analysis. This mean is delivers out-of-the-box presentation and reporting for Oracle multi-dimensional sources and Essbase.

Essay --

According to Laurence Sterne, â€Å"Nobody, but he who has felt it, can conceive what a plaguing thing it is to have a man’s mind torn asunder by two projects of equal strength, but obstinately pulling in a contrary direction at the same time†. In Mark Twain’s novel, The Adventures of Huckleberry Finn, the character Huckleberry Finn, also known as Huck, is one who can conceive this plague. Huck Finn’s ‘two projects of equal strength’ was the difficult decision whether to turn Jim, a black slave, over to his rightful â€Å"property† owner or to continue helping Jim escape to freedom. This inner conflict took place in Jim’s conscience of trying to decide what the right thing to do was. These two conflicting forces were the basis of how the story was told. The Adventures of Huckleberry Finn is told from Huck’s viewpoint, and it illuminated the quandary that Huck faces as he befriends Jim and helps him to freedom, as well as convincing himself talkimg himself into believing feeling . A part of Huck thought helping Jim was wrong because helping a black man escape to freedom was against society’s rules and went against everything that he had been taught and raised to believe. The other part of Huck saw Jim as a good person, a friend, and believed Jim should be free from slavery. It was a war between Huck’s conscience of not following society’s conventional laws and following his heart in what seemed right. Throughout the novel, Huck questioned whether he was doing the right thing. Even though he felt he was doing the right thing, he kept thinking about how he was going against society’s values and ideals. Huck also felt that he was betraying Miss Watson by taking Jim, her â€Å"property†, away from her. Miss Watson was always good to Huc... ... I studied a minute, sort of holding my breath, and then says to myself: â€Å"All right, then, I’ll go to hell†Ã¢â‚¬â€and tore it up† (Twain 317). At this point in the novel, Huck realizes that he would rather go to Hell for doing what he believed to be right even if it is wrong in others’ eyes, including God’s. Although Huck knew it was wrong to help a runaway slave, he also knew it was what he had to do, it felt right to him. The inner turmoil that Huck experienced within his conscience was a constant battle, but Huck made the decision to follow his heart. Huck learns, from his own life experiences of befriending Jim and his own moral conscience and intuition, that standing up for what seems â€Å"right† isn’t always easy to do, but it’s the right thing to do. Huck made the moral decision to go against what he had been taught was â€Å"right† and do what he knew was â€Å"right†.

Satire Essay

These fossils re under a lot Of pressure and heat for hundreds on thousands Of years, and in result is a dark substance known as Kerosene. These Kerosene molecules then eventually break down into petroleum or natural gas and are pumped into your gas tanks. That is right; your car is running on a limited supply of dead plants and dead fish souls. So now lets flip the script. Remember that guy you stepped over on the way to work in the morning? Remember the smell of his body that lightly brushed over your nostrils as you carefully avoided him. That man is a part of an incredibly high population of homeless people in America.The amount of homeless people is roughly estimated to 2. 3 million to 3. 5 million people. That approximately 1 in 10 people living on the streets with no job, no car, and no responsibilities. If only there was away to supply the country with cheaper and more plentiful alternative to gasoline that is so very needed. If only we had camps that housed the homeless in r eturn for nothing but physical labor. Homeless people are full of natural oils. The absence of showers and bathing ensures us that the homeless will not be ridding themselves of their daily odors.What plaques teenagers with acne can power cars and trucks? If only we could store the oils the homeless are probably bathing in. How do we reach the oils? When we shower the precious oils are mixed in a container of water and soap, and that is not good for cars. So maybe this idea is unrealistic after all. Human pores are cleansed through a very basic process that everyone goes through, sweating. The blood stream carries excess heat in the body towards the surface of the skin, which triggers the sweat glands. These glands that produce sweat are a combination Of water, salt, and amino acids.Then the sweat escapes into a tiny hole in the skin. These holes are known as pores and they produce natural oils of the body that are usually left undisturbed on the skin of the homeless. The sweat, whi le passing through the pores, shoots the oils out and allows the body to create more gold. The sweat of the homeless is an endless fountain of resources, resources that can run your cars just as well as gasoline. So all we need to do is get the homeless people sweating. But how can we convince them to live a life of physical labor and sweat? So what do homeless people need the most? They need a job.But the homeless are not a very central organization; they are coated all around the world. So all we have to do is gather them together and give them homes in the desert. Now we have all the homeless people in one place, sweating together and for a common good. Now what? The sweat must be collected, stored, and shipped out to various companies around the country. Homeless people are a walking gold mine of natural resources. The harvesting of resources is as simple as getting them to jog a lap or even do push-ups. By furnishing our own fuel through the body of the homeless We can establis h our dominance as a nation around the country.

Reflexive Pronouns in Spanish

Reflexive Pronouns in Spanish Reflexive pronouns are used in Spanish and English whenever the subject of a verb is also its object. In other words, reflexive pronouns are used when the subject of a sentence is acting on itself. An example is the me in me veo (and the corresponding myself in I see myself), where the person seeing and the person seen are the same. Verbs used with a reflexive pronoun are known either as reflexive verbs or pronominal verbs. This lesson covers the reflexive pronouns that are used with verbs. Spanish also has reflexive pronouns used with prepositions. The 5 Reflexive Pronouns Used With Verbs Verbal reflexive pronouns are used in much the same way as direct-object and indirect-object pronouns; they typically precede the verb or can be attached to the infinitive, imperative verb, or gerund. Here are the verbal reflexive pronouns along with their English equivalents: me - myself - Me lavo. (I am washing myself.) Voy a elegirme. (I am going to choose myself.)te - yourself (informal) -  ¿Te odias? (Do you hate yourself?)  ¿Puedes verte? (Can you see yourself?)se - himself, herself, itself, themselves, yourself (formal), yourselves (formal), each other - Roberto se adora. (Roberto adores himself.) La nià ±a prefiere vestirse. (The girl likes to dress herself.) La historia se repite. (History repeats itself.) Se compran los regalos. (They are buying themselves gifts, or they are buying each other gifts.)  ¿Se afeita Ud.? (Do you shave yourself?) El gato se ve. (The cat sees himself.)nos - ourselves, each other - Nos respetamos. (We respect ourselves, or we respect each other.) No podemos vernos. (We cant see each other, or we cant see ourselves.)os - yourselves (informal, used primarily in Spain), each other - Es evidente que os querà ©is. (Its obvious that you love each other, or its obvious you love yourselves.) Podà ©is ayudaros . (You can help yourselves, or you can help each other.) As you can see from the above examples, the plural pronouns in Spanish can be translated using the English reflexive pronouns or the phrase each other. (Technically, grammarians would call the latter usage of the Spanish pronoun reciprocal rather than reflexive.) Usually, context will make clear the more likely translation. Thus, while nos escribimos conceivably could mean we write to ourselves, it most often would mean we write to each other. If necessary, a phrase can be added for clarification, such as in se golpean el uno a otro (they are hitting each other) and se golpean a sà ­ mismos (they are hitting themselves). Reflexive pronouns should not be confused with English constructions such as I myself am buying the gift. In that sentence (which could be translated to Spanish as yo mismo compro el regalo), myself isnt being used as a reflexive pronoun but as a way of adding emphasis. Sample Sentences Using Reflexive Pronouns  ¿Por quà © me enojo tanto? (Why do I get mad at myself so much?) Voy a cocinarme una tortilla de papas y queso. (Im going to cook a potato and cheese omelet for myself. This is an example of attaching the pronoun to an infinitive.)  ¿Cà ³mo te hiciste daà ±o? (How did you hurt yourself?) Los gatos se limpian instintivamente para quitarse el olor cuando han comido. (Cats clean themselves instinctively to get rid of the odor when they have eaten.) Nos consolamos los unos a los otros con nuestra presencia humana. (We comforted each other with our human presence.) Se videograbà ³ bailando y envià ³ el archivo a mi agente. (She videotaped herself dancing and sent the file to my agent.) Mà ©dico, cà ºrate a ti mismo. (Physician, heal thyself. The reflexive pronoun is attached to a verb in the imperative mood.) Estamos dndonos por quien somos y lo que hacemos. (We are holding ourselves responsible for who we are and what we do. This is example of attending the reflexive pronoun to a gerund.) Hay dias que no hay dias que no me entiendo entiendo. (There are days I dont understand myself.) Nos consolamos con dulces. (We comforted ourselves with candy.) Los dos se buscaron toda la noche. (The two looked for each other all night.) Le gusta escucharse dndome à ³rdenes. (He likes listening to himself giving me orders.) Key Takeaways Spanish have five pronouns for use when the subject of a verb is also its object.When a subject is plural, the reflexive pronoun can be translated using either a form such as ourselves or each other, depending on the context.Reflexive pronouns precede the verb or can be attached to an infinitive or gerund.

Definition and Examples of Corpus Linguistics

Definition and Examples of Corpus Linguistics Corpus linguistics is the study of language based on large collections of real life language use stored in corpora (or corpuses)computerized databases created for linguistic research. Also known as corpus-based studies. Corpus linguistics is viewed by some linguists as a research tool or methodology, and by others as a discipline or theory in its own right.  Kuebler and Zinsmeister conclude that the answer to the question whether corpus linguistics is a theory or a tool is simply that it can be both. It depends on how corpus linguistics is applied (Corpus Linguistics and Linguistically Annotated Corpora, 2015). Although the methods used in corpus linguistics were first adopted in the early 1960s, the term corpus linguistics didnt appear until the 1980s. Examples and Observations [C]orpus linguistics is . . . a methodology,  comprising a large number of related methods which can be used by scholars of many different theoretical leanings. On the other hand, it cannot be denied that corpus linguistics is also frequently associated with a certain outlook on language. At the centre of this outlook is that the rules of language are usage-based and that changes occur when speakers use language to communicate with each other. The argument is that if you are interested in the workings of a particular language, like English, it is a good idea to study language in use. One efficient way of doing this is to use corpus methodology . . .. (Hans Lindquist, Corpus Linguistics and the Description of English. Edinburgh University Press, 2009)Corpus studies boomed from 1980 onwards, as corpora, techniques and new arguments in favour of the use of corpora became more apparent. Currently this boom continuesand both of the schools of corpus linguistics are growing . . .. Corpus linguistics is maturing methodologically and the range of languages addressed by corpus linguists is growing annually. (Tony McEnery and Andrew Wilson, Corpus Linguistics, Edinburgh University Press, 2001) Corpus Linguistics in the Classroom In the context of the classroom the methodology of corpus linguistics is congenial for students of all levels because it is a bottoms-up study of the language requiring very little learned expertise to start with. Even the students that come to linguistic enquiry without a theoretical apparatus learn very quickly to advance their hypotheses on the basis of their observations rather than received knowledge, and test them against the evidence provided by the corpus. (Elena Tognini-Bonelli,  Corpus Linguistics at Work. John Benjamins, 2001)To make good use of corpus resources a teacher needs a modest orientation to the routines involved in retrieving information from the corpus, andmost importantlytraining and experience in how to evaluate that information. (John McHardy Sinclair, How to Use Corpora in Language Teaching, John Benjamins, 2004) Quantitative and Qualitative Analyses Quantitative techniques are essential for corpus-based studies. For example, if you wanted to compare the language use of patterns for the words big and large, you would need to know how many times each word occurs in the corpus, how many different words co-occur with each of these adjectives (the collocations), and how common each of those collocations is. These are all quantitative measurements. . . .A crucial part of the corpus-based approach is going beyond the quantitative patterns to propose functional interpretations explaining why the patterns exist. As a result, a large amount of effort in corpus-based studies is devoted to explaining and exemplifying quantitative patterns. (Douglas Biber, Susan Conrad, and Randi Reppen, Corpus Linguistics: Investigating Language Structure and Use, Cambridge University Press, 2004)[I]n corpus linguistics quantitative and qualitative methods are extensively used in combination. It is also characteristic of corpus linguistics to begin with qua ntitative findings, and work toward qualitative ones. But . . . the procedure may have cyclic elements. Generally it is desirable to subject quantitative results to qualitative scrutinyattempting to explain why a particular frequency pattern occurs, for example. But on the other hand, qualitative analysis (making use of the investigators ability to interpret samples of language in context) may be the means for classifying examples in a particular corpus by their meanings; and this qualitative analysis may then be the input to a further quantitative analysis, one based on meaning . . .. (Geoffrey Leech, Marianne Hundt, Christian Mair, and Nicholas Smith, Change in Contemporary English: A Grammatical Study. Cambridge University Press, 2012)

Dee Dees Yarn Manufacturing Company Research Paper

Dee Dees Yarn Manufacturing Company - Research Paper Example Warehousing has an additional section that specializes in distribution with its section manager. The development of the idea is associated with some aspects based on yarn production; their desire to engage in the business and the opportunity to start a yarn manufacturing company, direction of interrelated operations and other support processes for complete production. The concept is developed to ensure that products cater to the needs of all people, both men, and women. The companies basic model of operation is aligned with five areas that will enable the organization to achieve its objectives allocate functions appropriately, make decisions for production, execute the plans and conduct post-production assessment (Lord, 2003).   The company will greatly consider quality for the products offered regardless of the costs for production. This shall be meant for the consideration of the customer focus on the product. Dee Dee’s yarn manufacturing company will be considerate in the type of materials to be used in the yarn production. All materials selected shall be critically evaluated to ensure quality for the production of an ultimate quality product that will completely meet the customer’s need. Dee Dee’s yarn Company will ensure the uniqueness of their product. All products manufactured shall be outstanding in place of imitations from other yarn manufacturing companies. It shall ensure the addition of any other aroma or aspect to the Dee Dee’s yarn products to add values over the other yarn products from other companies. In this way, the company shall benchmark with the current yarn producers to make a clear understanding of the necessary practices in the market. The Company will conduct a research for the most applicable aspect of product design and create the ultimate product with considerations of the implemented concepts.

The Case of the Performance Appraisal Study Example | Topics and Well Written Essays - 750 words

The of the Performance Appraisal - Case Study Example At the very beginning of the hiring process, discrimination maybe avoided through adequate training of individuals involved in the selection process on age discrimination laws and regulation, creation of a well-structured criterion that is not biased heavily towards younger applicants. Like all problems revolving around the workforce, age discrimination is also an issue that is best handled as early as it occurs. A strong commitment by the management and a proactive attitude towards the elimination of this problem is essential. This involves a careful review of job descriptions to analyze the scope of responsibilities at each position and ensuring the existence of a good compensation system. Additionally a clear and transparent performance appraisal system is necessary in communicating a just and fair management that bases its decisions for layoffs on performance indicators as opposed to controversial factors such as age.(Jenny Cromie, 2008). Experts propound that decisions that are based on â€Å"the position and not the person† are less likely to be received as discriminatory by the workforce (Jenny Cromie, 2008). In a study on age discrimination in stimulated employment settings it was found that older people are less likely to be rated favorably in the absence of job relevant information (Finkelstein, Burke & Raju 1995) In order to discourage discrimination by coworkers, managers must ensure the clear communication of company policy on age discrimination highlighting its commitment to providing equal opportunities and maintaining a fair approach towards the entire workforce. Section III An increasing number of employees are covered by the Age Discrimination and Employment Act (ADEA) which overs employees over 40 years of age. Such laws in addition to a relatively sluggish world economy has contributed to a large number of older workers preferring to stay in their jobs for longer than some employers may expect (Jenny Cromie, 2008). Under such conditio ns it is not uncommon that corporations are often drawn into lengthy lawsuits by laid off employees in addition to facing the lack of morale in the workers that remain. It is therefore useful to consider alternative options that allow organizations to retain their elderly workers without experiencing an increase in costs. A mutually beneficial arrangement in the form of ‘Job Sharing’ appears as a useful tool for employers who wish to retain older employees. This could effectively make it possible for the business to make part time work available and hence attract applicants while still retaining the full time coverage of a job. The combination of different perspectives and experiences on the same job can be fruitful in generating new and creative ideas and speedy problem solving techniques. Encouraging professional development of the work force in general and ensuring adequate training of older employees as newer systems are adopted can also help in reducing the gap bet ween