Introduction to Data Management and File Structures Essay Example

Introduction to Data Management and File Structures Essay Introduction to Data Management and File management Most computers are used for data processing, as a big growth area in the information age Data processing from a computer science perspective: Storage of data Organization of data Access to data Processing of data Data Structures vs File Structures Both involve: Representation of Data Operations for accessing data Difference: Data structures: deal with data in the main memory File structures: deal with the data in the secondary storage Main Memory-MM ast small volatile, i. e. ata is lost during power failures. Secondary Storage-SS big (because it is cheap) stable (non-volatile) i. e. data is not lost during power failures slow (10,000 times slower than MM) How fast is the main memory? Typical time for getting info from: Main memory: †10 nanosec = 10 x 10-9 sec Hard disks: †10 milisec = 10 x 10-3 sec An analogy keeping same time proportion as above: seconds versus weeks Goal of the file structures What is performance Time Minimize the number of trips to the SS in order to get desired information Group the SS. Memory Balance the memory size and the time How to improve performance Use the right file structure Understand the advantages disadvantages of alternative methods Metrics used to measure efficiency and effectiveness of a File structure-I simplicity, reliability, time complexities, space complexities, scalability, programmability, and maintainability. *Note that the domains of the efficiency and effectiveness concerns rely on time and pace complexity more than any other factor. Metrics used to measure efficiency and effectiveness of a File structure-2 The file structures involve two domains: hardware and software. Hardware primarily involves the physical characteristics of the storage medium. Software involves the data structures used to manipulate the files and methods or algorithms to deal with these structures. The physical characteristics of the hardware together with data structures and the algorithms are used to predict the efficiency of file operations. We will write a custom essay sample on Introduction to Data Management and File Structures specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Introduction to Data Management and File Structures specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Introduction to Data Management and File Structures specifically for you FOR ONLY $16.38 $13.9/page Hire Writer

Maestro essays

Maestro essays The novel Maestro, by Peter Goldsworthy, who was born in Adelaide and then moved to Darwin to finish his education. Since graduating in medicine from the University of Adelaide, he has devoted his time equally to medicine and writing. He is married to a fellow graduate and they have three children. I believe Goldsworthy successfully explores issues relevant to a society in a different period of time, given the book is set in the 1960s and was not published until 1989. Goldsworthy uses representations of setting and character to give the reader a better understanding of the people places and culture, which surround them today. Goldsworthys representations of characters in the novel play a major part in exploring issues from a different period of time as well as giving the reader a better understanding of their own world. * Keeps himself remote/removed from others by not showing - Certain feelings or acting kindly * Lacks the ability to compliment/praise and encourage others * An obscure, mysterious character (enigmatic) Cultured (contrast to Darwin) - Keller's white clothing may indicate his real, but hidden Goodness. This "whiteness" is like holiness. This is a total contrast Though to his self-perception- this representation made by Goldsworthy is made to give the reader a better understanding of their own world. That people are not always as they may seem on the outside. -Quest for perfection- making Paul start from the beginning - Keller constantly collects clippings of newspaper articles. It seems he liked to study the behaviour of others to help him understand him self- Keller himself is trying to gain an understanding of his own world. As the reader is told about what some of the articles are about, we gain a greater understanding of issues, which were in a different period of time. ...

The future of a business and why it depends on sustainable approaches Essay

The future of a business and why it depends on sustainable approaches that it adopts - Essay Example Survival of a company largely, depends on strategies that it develops. Sustainable business approach does not only address how the firm will increase its profit margin, but also addresses planet and people. The only viable future for business is to become a sustainable business in a sustainable society. The future of a business depends on sustainable approaches that it adopts. This concept is quite broad thereby necessitating critical structures that would handle the business towards achieving its goals. This paper will address the following core concepts. The first section will address economic viability of a business that focuses on modalities of creating profit. Ethical viability will focus on the business and its influence in the environment. Social viability will address manageability, system viability, and sustainability. The second section of the paper will address the concept of business sustainability. Sustainability has broad concept that include resource consumption, socia l mandate, political support, environmental impact, and image. Analysts contend that the definition of viability with respect to business is the ability to survive (Sarkis, et.al. 2010:104). Many entrepreneurs peg viability to profit margin. The projection within the working environment should indicate that the organization would be able to make some profit. Entrepreneur’s expectation is that their businesses will be able to pick up and justify their investment by generating profit. When the business projects its viability into the future the situation would create sustainability. Sustainability means the ability of the business to remain viable into the future. Sustainable activities of the business would not only look at economic viability, but also the environment. Economic viability A business that intends to be viable in the future has to operate within ethical and socially acceptable manner. The idea behind such operations looks at the interest of the consumer with resp ect to company products. Consumer behaviors influence the profit margin of a firm. It means that the business must produce products that address needs of the consumers without harm or exploitation. When a form engages in a business that depletes the resources with the environment, the survival of the business would be at stake because it would not be able to generate products in the market (Richards, 2009:175). A firm that does not demonstrate sustainable methods of operation does not respect the ethical measures within the society. For instance, business operation has to create a room for the consumers to buy similar product in the future. What would be the condition of the market condition in an event of product depletion? The outcome of the market condition would be economically dead. Thus, economic viability of the business addresses the issues of continuity. Business, which gets huge profit margin for a short term, would not be economically viable because it does not have the c apacity to survive in the future. Entrepreneurs evaluate conditions of market or the environment where they intend to create their enterprises. Economic viability as a consideration would address the following factors accessibility of raw materials, costs associated with business operation, government policies, effects to the environment and future development among other factors (Richards, 2009:174). Practices, which influence the

Reflective analysis of counselling practice task Essay

Reflective analysis of counselling practice task - Essay Example Such behaviour annoyed her sister, and they were not in good terms since then. My aim in this counselling session was to assist the client never to be such emotional and depressed. In this context, I was to get the real cause of the depression and emotional that appeared on my client’s face to help me effectively counsel the client. However, I realised I was so inconsistent with the client-centred theory as the client was willing to talk and share a lot with me but the best I offered was a mere hug. For example, I kept on saying ‘Mhhh’ instead of inquiring and looking for best strategies counsel my client by showing empathy and congruence. I terribly failed to assist my client. I was so inconsistent and asked questions out of the client-centred theory such as whether she was still willing to talk to her sister who was unhelpful. I realised that the emotional degree in the client shuttered my session and could never appreciate the congruence and empathy as outlined by the client-centred theory. In my session, I failed to be driven by the three key pillars of client-centred theory as empathy, unconditional positive regard and congruence. I never appreciated the fact that every individual has internal resources necessary for the growth and, therefore, my person-centred counselling approach would have helped me provide the three mentioned pillars that help realised such stated growth. In mind, throughout the session I failed to appreciate the principle view of person-centred approach to counselling that an individual client is perceived as there own best authority on the experience as well as it perceives the client, the client in this case as being fully capable of fulfilling her own potential for growth. Rodgers says, ‘If am truly open to the way life is experienced by another person†¦. If I can take his other world into mine, then I risk seeing life in his or her way†¦ and of being

Weight management Article Example | Topics and Well Written Essays - 500 words

Weight management - Article Example One shortcoming of the research is that, much of it is concentrated on the behaviors that lead to weight decrease , but less study is findings has been provided for weight loss maintenance. The work has concentrated on broader issues (e.g., calories consumed), but data are scant on behavioral schemes related to weight maintenance. One broadly acknowledged idea is that successful and sustainable weight decrease needs paying vigilance to both sides of the energy-balance equation: power intake through nourishment and drink and power expenditure through physical undertaking . The influence of the blended strategy of consuming fruits and vegetables and engaging in normal physical activity has not been widely studied in mature persons thriving at heaviness decrease maintenance. A population-based approach was used to examine behavioral schemes used by those who were successful in weight loss. Such parameters as racial and ethnic dissimilarities in men and women were analyzed and described the combined dietary and physical activity behavior amidst U.S. adults who were trying heaviness loss upkeep. It was set out to analyze whether the combined tendency of consuming higher amounts of low-energy–density fruits and vegetables and engaging in regular physical undertaking is affiliated with successful heaviness loss upkeep. In addition, behaviors of respondents dining outside their homes were also considered and self-assurance in their proficiency to enlist in behavioral strategies that support successful weight decrease maintenance. In this study, men and women thriving at weight management described distinct one-by-one behaves. Amidst women who described consuming five or more crop and vegetable servings on the previous day, one-third were thriving at heaviness loss maintenance. Among women who described consuming less than five fruit and vegetable servings, one-fourth were thriving. Although,

Going Digital With Email Marketing Marketing Essay

Going Digital With Email Marketing Marketing Essay Nothing has affected our society over the past two decades more than the continued development of computing technology and the internet. Internet-based tools such as websites, social media, e-commerce, and email touch our everyday lives in some way, both personally and professionally. As a result, the business community has recognized the reach of the internet throughout the world and is aggressively seeking ways to harness the power for greater financial gain more than ever. Despite the rapid enhancements of internet-based business, email remains a consistent element of marketing campaigns and is considered the most mature of the web-based marketing platforms. The possibilities and effectiveness of email are limitless when reviewing these 2009 email statistics posted by Pingdom.com (http://royal.pingdom.com). With over 1.4 billion email users worldwide, firms have the ability to expand and target potential customers globally. The significant factor about this medium is that it continues to grow. Joe Soltis (2007), with Fathom SEO, stated that email has shown a 14.6% growth rate from 2002 to 2007. Pingdom.com (http://royal.pingdom.com) expounds on the growth statistics by saying that the number of email users grew by 100 million from 2008 to 2009. Although email has been around since the earliest days of the internet, it continues to hold value and relevance in the marketplace. The prospect of growth and market reach is only one advantage of an email marketing program. Transitioning your collateral from the traditional printed piece to an electronic format distributed via email can produce cost savings of 50% or more. One of the most important aspects of an email campaign is your ability to measure the deliverability and response of each individual as well as their actions, also known as conversions, within your media. By analyzing your readers actions, you have the ability to refine your email approach and provide your reader with more relevant and diverse forms of content in a fast and timely fashion that print cannot replicate. The ease in which email can engage a readers response only solidifies this creation of a mutually beneficial relationship between the firm and client. What firm would not be thrilled to have a mutually engaging relationship with their client? Providing timely and relevant content to your readership comes with quite a few challenges. Managing a recipient database with accurate information while attempting to expound on the various demographic traits recorded for each recipient requires technical and marketing expertise. Evaluating responsiveness and website traffic is a continuous process that will challenge the discipline of any firm. Creating a mindset of a willingness to change at a moments notice can be difficult and affect the morale of your employees. Developing a content tagging, labeling the content type or subject, storage, and retrieval system is crucial to providing personalized, unique content to a reader. Once entering the digital world, a firm must stay apprised of the latest technology and trends, which change frequently. These changes could negatively affect your marketing campaign if you fail to identify and alter your plan accordingly. Once a decision has been made to implement email marketing into your campaign, the search begins for an Email Service Provider (ESP). A key element in the success of an email marketing campaign is finding an ESP with proper electronic storage file for customer information. A database is used to store customer information ranging from name and address to method of contact preference and special interests. Many ESPs on the market offer similar capabilities. Ranked by Pivotal Velocity as an industry leader in deliverability, iContact offers 250 templates, 500kb image hosting, unlimited email lists, autoresponder and blogging for a minimum $9.95 per month, while Bronto offers 148 templates, 10mb image hosting, limited email lists and responders and blogging for $100.00 per month (http://www.icontact.com). There are also free database management downloads for those that prefer to maintain the database themselves. Databases and servers are nearly synonymous in that you will need to confirm that the database program you have chosen is compatible with your server. While Microsofts SQL Server is the most recognizable, other types of servers such as Oracle, IBM, and Pervasive will perform most of the same functions and to nearly the same capacities (Rzero, 1999-2008). Depending on the type of data you are trying to secure and what operating system you are currently running, you will want to determine which server is the right fit for your business. In addition to a powerful database, you want flexibility of design from your ESP. Depending upon your internal resources, ESPs offer design modules that provide standardized templates for firms with limited creative resources. Companies with design expertise on staff should have the flexibility to customize their design, within the system, to fit their goal of providing unique and dynamic (changing) content. The system should be able to handle all types of media like audio, video, and animation giving the opportunity to offer value beyond a printed piece. Despite limited resources in the beginning, it is advisable to partner with an ESP poised to handle growth as your firm evolves and adds resources to provide one to one marketing. Providing unique and relevant content would not be possible without the proper analytic and metric reporting needed to identify specific demographic content. The process of identifying demographics and providing content relevant to that demographic is called segmentation. This concept is the basis of all internet-based marketing due to the extensive trackability available on all users. The latest mobile devices are centered around this ability to segment an audience and provide specific content relative to each segment. Starting an email campaign begins with acquiring an accurate list of recipients. Most companies already have a database of their current customers, which can serve as a foundation for the event. Understanding that marketing campaigns usually attempt to gain audience share, it is important to add potential subscribers from your prospect lists created from your companies diverse marketing efforts. Begin by verifying the information in your current list is accurate. Companies like Freshaddress will analyze your data and compare it with their and their partners databases to check for raw matches. They obtain secure permission statements from your customers then re-analyze the data and return the list to you with the most current and reliable information available (http://biz.freshaddress.com). Should a customer list or prospect database not exist, the options of purchasing a list from a list management company or building your own are available. When purchasing a list, be sure to read the fine print. Many list providers cross- reference or sell their lists to others. If your business involves sensitive customer information and nondisclosure agreements are in place, you may want to consider compiling your own data. Building your own will require creativity and resourcefulness. One option would be to set up a quality opt in website that will capture data from every customer or potential customer that enters the site, offer possible prizes for referring a friend or host a focus group and capture relevant information from the attendees. Once an accurate database of customers and leads are in place, the segmentation tools provided by the ESP can be utilized. Analyze the demographic information for common denominators leading into a particular category of product or service provided by the firm. Focus your efforts on identifying the groups who would view your content as relevant. This will allow you to build rapport with your customers and prospects, which might inspire them to confirm membership and return to your site. If a customer is a single mother, offer advice, information or coupons that will peak their interest. If the customer is a senior citizen, offer information about retreats, retirement, and vacation homes. Strive to provide information about your business, products, and services that is relevant and interesting to your readership. Your ultimate goal is to engage with your reader in hopes of drawing them back to your site for purchase or use of your service and goods. As you continue to build and grow your database, website maintenance and regular updates are critical. Customers want to be informed and previously read or outdated information will deter them from returning. Keep your customers engaged by items that can only be accessed through your site such as animation, video, web-only reports or articles, and links. Offering access to these value-added elements in exchange for traits or trends provided by the reader is an excellent way to acquire additional information about the reader. With information acquired over time, the degree of segmentation capability grows making your relationship stronger. With 247 billion emails sent in 2009 and 81% of those identified as spam, which is unsolicited email, the design and content of your email is crucial as you want to be identified as a requested, relevant message (Publishers Playbook, 2010). Two specific items that will separate you from the spammers would be to offer a double opt-out option and maintain a proper balance of sending emails and not sending emails. If you overwhelm the recipients with numerous messages, you run risk of being an annoyance and alienating them. The double opt-out option gives the reader the opportunity to acknowledge and confirm their request for your information. This insures that the initial opt-in was intended while also protecting your sender ratings, which trend downward with extensive amounts of opt-outs. In addition, you are legally obligated to offer readers the opportunity to opt-out. If that option is not provided within your email, you could be penalized up to $16,000.00 for non-compliance to the CAN-SPAM Act which regulates commercial email activity in the U.S. Giving two options to unsubscribe protects the firm legally helps insure the efforts are not going to waste (http://www.ftc.gov, 2010). The renderability of emails is a crucial aspect in the design process. With numerous browsers, operating systems, and equipment capabilities, emails produced in HyperText Markup Language, also known as HTML, have the greatest success of being functional across all internet related platforms. HTML also provides extensive flexibility of design by supporting all internet related mediums such as video, animation, or audio. Having the ability to apply HTML code provides you endless opportunities to customize every email effort you produce. Not unlike any other marketing product, the design and content of the email must grab the readers attention and encourage their interaction. Make sure you store the content on your company website and let an alluring email provide the link for the recipient. Once the reader is on your website, they have full access to all of your information, which gives you a better opportunity to spark a continued, interactive relationship. Make sure the email provides links to information that can only be obtained via a link to your website. This is your opportunity to offer content in ways that a magazine, newspaper, and even television cannot offer. There are numerous ways to draw engagement as long as the method offers some form of value to the recipient. However, the value of your email does not have to be centered on the reader relationship. You have the ability to market your communications to others who would benefit from being in touch with the same people. A specific product vendor may be willing to pay you to promote their product video through your email campaign. Maybe that famous industry expert would like to promote their new book by posting a book trailer in your message. Numerous revenue opportunities exist if you review and compare your demographic attributes to your vendor or service providers. Analyzing the results of the email campaign, enhances your ability to add value to your customer relationship as well as provide further revenue gaining opportunities. Business has always been about identifying the needs of the public and offering a product or service to fill that need. Email marketing provides firms with the ability to look deeper into the lives and needs of their clients by monitoring their engagement levels. Through your ESP and web site analytics, you can verify, by recipient, if they opened the email, clicked beyond the email, identify where they clicked, determine the content of where they visited which implies their interest in that topic. For example, if you are an auto parts supplier and you just emailed a newsletter link to Joe Smith. Joe opened the email and clicked through to the newsletter hosted on your company website. You can see that Joe was interested in your newsletter article regarding the restoration 1960s model muscle cars. After reading the new sletter article on your website, Joe searched your parts database for a door handle on a 1967 Chevrolet Camaro. Take this opportunity to provide Joe with information relative to restoring cars and more specifically, restoring late 1960s model Chevrolet Camaros that exists in a special muscle car restoration piece on your website. Now that you have identified with Joe Smith, Joe will be more likely to purchase products from you and support your advertisers by returning to the site giving advertisers greater exposure. Email marketing not only drives revenue through the message itself, but also has the ability to increase traffic on your website. The great thing about email versus a printed product is that emails can prove, statistically, the extent and habits of their readership. Advertisers base their ad dollar spending decisions on where they will receive the most exposure. Knowing that you cannot only identify the quantity of readers, but the habits of those readers as well, your ability to draw in ad revenue is strong. Through the analytic module on your ESP, an advertiser can receive feedback, by campaign, on the response to their advertisement based on open and click through rates to their website link within their ad. The statistical information available because of internet trackability is rapidly changing the advertising price model that has been in place for decades. The days of purchasing ad space in a piece for a predetermined amount of money is losing ground. Using the statistical information, software developers have already formed advertising networks. These networks provide ad placement services throughout various relevant web entities on behalf of the advertisers. Their goal is to advertise with sites that will offer the best opportunity to sell their goods or services. The networks use demographic and traffic information of the websites they use. The benefit to the advertiser is that they pay a fee per unique visitor, which allows them to pay for what serves to benefit their business. The model is comparable to what exists today with other media related sites which are based on a per view, hit, or click basis. This same model is also in the process of being replicated for all forms of c ontent beyond advertising. The internet continues to perpetuate significant change in the business community and our personal lives. Advancements in the mobile service and device arena are just a sign of what to expect in the near future. The combination of technology coupled with the advertising and content networks, our mobile devices are going to become our personal concierge. The pending change in internet-based marketing is going to be the advent of consumer generated marketing. This is where the consumer will have the opportunity to select the things that interest them and have those served directly to them. As tracking and segmentation capabilities expand, this content will become more personalized and unique than ever before. The growth of email use over the past decade indicates that email will remain a powerful means to deliver information. The ease of integration into various systems, networks, and media types helps us realize and understand the sustainability it has shown throughout the last two decades. With the rapid pace of change and advancement technologically, the best way to keep up with the internet world is to come aboard and grow with it. Otherwise, your firm will run the risk of falling far behind with no hope of catching up. The opportunity to market your business to the specific people and businesses in need of your services has never been better and will only improve with time. The advancement of internet trackability is a marketing specialists dream as they can maximize marketing dollars with optimum results. The tools are available, so why not harness the power and embrace going digital!

English Media Coursework (Saving Private Ryan) Essay examples -- essay

Analyze the methods used to make the opening battle sequence of ‘Saving Private Ryan’ both shocking and realistic, and say how effective you find it as an introduction to the film Steven Spielberg’s master piece Saving Private Ryan earned itself 5 academy awards, including the best director award in 1998. The all star cast starring Tom Hanks, Matt Damon, Tom Sizemore and Edward Burns brings to life the horror of war. Seen through the eyes of a squad of American soldiers, the story begins with World War 2’s historic D-Day invasion, then moves beyond the beach as the men embark on a dangerous special mission. Captain John Miller (Tom Hanks) must take his men behind enemy lines to find Private James Ryan, whose three brothers have been killed in combat. Faced with impossible odds, the men question their orders. Why are eight men risking their lives to save just one? Surrounded by the brutal realities of war, each man searches for his own answer-and the strength to triumph over an uncertain future with honor, decency and courage. Saving Private Ryan earned its awards for bringing back the realism of World War 2 and for portraying what the shocking chances of survival were at the historic battle of Omaha beach on D-Day in June 1944. Omaha beach was only one of the invasion sites of the American, British and Canadian coalition forces. The special reason why Steven Spielberg chose to direct his movie with Omaha beach as its backdrop was due to the fact that out of all the other landing sites, Omaha beach was the bloodiest battle field and it took 15,000 lives of young American soldiers to capture the beach. In the past, war genre films meant hardcore action and a hero waging a one man war against an army, a typical movie would be Rambo 3. Although it is based on a true story, it did not take one American to battle the whole Russian army with a bow and arrow. Saving Private Ryan brings back to life the real heroes that fought in a war, men who were willing to give up their lives just to make a difference, now tha t ultimate sacrifice is what true heroism is. In a way Saving Private Ryan was finally able to create a difference between action genre films like Rambo 3 and war genre films like Black Hawk Down, and define completely new conventions of war genre films. The realism of the movie is what gave the movie its academy awards. A few explosions cannot bring back ... ...n the beach. Hundreds of bodies lay dead, the music although creates a peaceful effect, the first reaction of a sentimental audience would be tears dripping out of their eye’s. The final shot of the scene is the close up on Peter Ryan laying dead on the beach with a bloody tide rushing in. The ending scene was probably the most effective scene of all because it immediately shows the reality and chaos war brings to mankind and what kind of courage it takes people to rise up against it. Overall I think Steven Spielberg has created a masterpiece in re-creating D-Day. Not only that, the way the whole battle sequence followed and linked each other was remarkable. I mean to say the graveyard, the old veteran crying, the music, really prepared me to expect the next scene to be a battle. But I did not know it was going to be that chaotic and brutal that it literally shocked and surprised me. The accuracy and the, idea of hand held cameras really involved me with the movie and I think that’s what I enjoyed the most, the realism of the movie convinced me that, that is how D-Day happened. Saving Private Ryan was definitely worth watching, it has taken the war film genre to a whole new level.