This website uses cookies to ensure you have the best experience. Learn more

Data Sysytems Essay

2851 words - 12 pages

University of Phoenix

Data Systems Learning Team Paper

Team A: Renee Wilson, Ferdinand Habijan,
Maryrose DeFino, Stasia Bowling

HCI 520 Data Management and Design

January 16, 2012

Steven Fowler

This paper will address data systems; a database is an organized group of files that are related and considered the supporting constructs of a database management system. It is maintained and considered an integral part of most organizations worldwide. The database management system houses a program that enables storage, modification, and extraction of information from a database. In this paper team A will address database the phases of the database life cycle, and ...view middle of the document...

Security is also addressed at this time, physical and password security a determination of access rights and audit trails are developed. Data encryption and firewall are built. An implementation plan or written schedule is important to take steps to ensure deployment and transition is achieved. Implementation includes developing training requirements and schedules. A good training experience is the first step towards end user acceptance.
Analysis of Database Types
Database System types include single, multi-user, centralized and distributed. The objective of the database is to maintain the integrity and consistency of the data. This consists of a data dictionary that provides definitions of the data, elements and their relationships. Data storage and security management both need to be considered when deciding upon a database type for an organization. Database Models are used to represent data structures and display relationships within a database. Conceptual models include Entity relationship database models (ERDBD) and Object-oriented models (OODBM). Relationships in Conceptual models are 1:1, 1: M, and M: M. Implementation models include: Hierarchical database model (HDBM), Network database model (NDBM), Relational database model (RDBM) and Object oriented database model (ODBM) (Learn IT: The Power of the Database, 2008). Following is a description of each type of database.

Hierarchical Databases: are represented by an inverted tree. Each parent can have many children. Each child has one parent.
Network Databases: allows more flexibility than the hierarchical model, each record can have multiple parents; introduced set to describe relationship. Each set has its own record and member record, parallel to parent and child in HDM. Member may have several owners; one ownership.
Relational Database: a collection of tables for data storage, while the RDBMS handles the physical details. Tables, records, and fields are the basic components.
Object-Oriented Database: the object-oriented database model was developed to handle the types of data that the relational model was not well suited for.
Object-Relational Databases: a hybrid model, combining features of the relational and objection–oriented models (“Learn IT: The Power of the Database,” 2008).

Conceptual Representation for the Database System

The database system plays an important role during the operation of a business. Although database design is a time consuming process, organizations should pay close attention to every phase during development of database system to produce a well-designed database. See Appendix for the diagram.
During the development of a database system, designers and developers should ensure that every element of the system performs its vital function properly. During the process of database system production performance issues can be resolved prior completion of the final product. Database system design should always be aligned to the goal and...

Other Papers Like Data Sysytems

Holidays In Albania Essay

1636 words - 7 pages Have you ever thought about having exciting and incredibly cheap vacations? Albania might be the right choice. According to My Travel Guide, Albania is ranked the fourth among ten places worth visiting in Eastern Europe (“Top 10 Eastern European Destinations”). One can encounter three kinds of vacations in this Mediterranean country: winter, summer, and cultural. The ideal places to spend your winter vacations are the Albanian Alps. They are

A Heart Of Darkness Essay

1748 words - 7 pages In this short story, there are frequent significant subject and ideas that make the story, "A Heart of Darkness," by Joseph Conrad, and haunting novel. The main theme is absolute white power over the natives. The theme validates the corruption, and the dependence caused by the white people as they took over the Congo. White men were giving all the power; they had no self-control, and in the end they did not use wisely. The white men became

The Aspects Of Vulnerability Among The Exploited In Medical Research

2287 words - 10 pages Essentially, everyone is in some state of vulnerability. However, some of us are more susceptible to harm due to our vulnerabilities. The susceptible are the individuals with the greatest risk. These individuals risk the loss of their autonomy, and maybe even their lives. Vulnerable populations can be found in every subset of society. However, as previously mentioned, there are some vulnerable populations that are at an even greater risk than

The Hitchhiker’S Guide To The Galaxy

1171 words - 5 pages The Hitchhiker’s Guide to the Galaxy As the human race makes life-changing discoveries, it is made apparent that there is always more to learn as the universe, instead of becoming familiar, is becoming absurd. The Hitchhiker’s Guide to the Galaxy, written by Douglas Adams, as well as the 2005 film adaption, portrays absurdity to be an all-encompassing system in the universe. Through the introduction and attempt to understand lack of reason, the

The Ford Motor Company Wage Increase Of 1914 And The Theory Of Incentives And Efficiency Wages

1252 words - 6 pages ‘It’s not the employer who pays the wages. Employers only handle the money. It is the customer who pays the wages’ (Henry Ford, cited in Johnson and Weinstein 2004, p. 2). When the Ford Motor Company announced that it would more than double the wages of its workers in January 1914 to a ‘five-dollar day’ minimum, was this a contradiction to Henry Ford’s statement? If customers are actually the ultimate payers of wages, then more than

Historical Analysis Of The Economical Breakthroughs Of The Industrial Revolution

1396 words - 6 pages A Historical Analysis of the Economical Breakthroughs of the Industrial Revolution During the Industrial Revolution, many elements of society experienced huge breakthroughs that would change the way they functioned forever. Economics were definitely one of them. With many new inventions and many factories appearing, many, many, more resources were being created than ever before. Also, all of the revenue from these resources was being given to

Leadership Portrayed in Monologue from Shakespeare’s Henry V

1214 words - 5 pages Leadership is defined as a socially constructed process and which also affect organizational future outcomes. Leader is someone at high position who have overall duty for an organization, she or he decide what to do and the way how to achieve it. (Carter and Greer, 2013)The role of leader is extremely important for an organization, leader use their own power to influence the followers though many different ways such as motivation in order to

Cuba Civil Rights

1906 words - 8 pages Picture a country that has limits on how much you can make random government imprisonments and more what do you do. That is the situation for the eleven million seventy-five thousand two hundred forty-four people of Cuba since the takeover of Fidel Castro. The US is opposed to Castro taking control of Cuba. Castro managed to ease the United States nerves when he said that Cuba was against all forms of communism. According to Lana Wylie the Union

US Freight System

1273 words - 6 pages General Environment Each American requires the movement of approximately 40 tons of freight per year across the freight network. This includes everything from shirts to lawn mower to orange juice. • As the U.S. population expands, the U.S. freight system will be called upon to meet the demands of a larger population • Between 2010 and 2035, the system will experience a 22 percent increase in the total amount of tonnage it moves • By 2050, with

Democratic Peace Theory

1852 words - 8 pages Intro: US Presidents have made it a goal during their term(s) in office to establish a good relationship with foreign countries and even try to improve upon existing connections with our allies. Some believe it is to prevent conflicts between the countries while others dispute that it is a threat assessment by the United States to pick and choose their friends and enemies. Preventing conflict between two democracies or countries that practice

Booker T. Washington

1621 words - 7 pages “Success is to be measured not so much by the position that one has reached in life as by the obstacles which he has overcome” –Booker T. Washing. Booker Taliaferro Washington was born in Hale’s Ford, Virginia on April 5th, 1856 to Jane Burroughs and an unknown White man. Washington was married three times. His first wife was Fannie N. Smith from Malden, West Virginia. Booker and Fannie were married in the summer of 1882 and had one child

Related Essays

Definitions Of Abuse Essay

5282 words - 22 pages other records you have made 3.1 Identify national policies and local safeguarding sysytems and protection from abuse Independent Safeguarding Authority (ISA) National Vetting and Barring scheme (VBS) Criminal Records Bureau (CRB) No secrets national framework and codes of practice for health and social care (2000) Safeguarding adults national policy review (2009) Work of the Care Quality Commission working together to safeguard children (2006

Freedom And Responsibility Essay

2141 words - 9 pages Built within the Constitution of the United States are specifically defined freedoms that are guaranteed to all citizens. Conversely, with every constitutional freedom there comes a corresponding responsibility. On September 25, 1789, the state legislature’s twelve proposed amendments were transmitted by congress, the first two dealing with congressional representation and congressional pay. The following numbers three through twelve were

Hate Crime Laws Essay

2348 words - 10 pages On June 7, 1998, 49-year-old James Byrd Jr. of Texas accepted a ride from three white men, who then beat him severely, urinated on him, chained him by his ankles to the back of their pick-up truck, dragged him for three miles into the countryside, and dumped his corpse in front of an African-American cemetery (Graczyk). A little over a year later, a jury sentenced ring leader John King to death by lethal injection (“Man Executed for Dragging

Rational Emotional Behavior Therapy Case Study Conceptualization And Treatment Plan

2140 words - 9 pages Rational Emotional Behavior Therapy Case Study of Sarah: A Conceptualization and Treatment Plan Rational emotive behavior therapy, REBT, was developed by Albert Ellis and holds the central belief that the events in our lives do not cause our disturbances but that they are instead caused by our view of the events (Murdock, 2009). Murdock (2009) states that “people are seen as responsible for their behavior” (p. 279) but, because they are