ER Diagrams and Databases

At this stage, the specifics of the scope and the general content of the project has been identified and is the first step in database development. It illustrates the overall picture of organizational data at a high level of abstraction. In addition,

* Describe the role of databases and database management systems in managing organizational data and information.

This must be in your own words and not copied and pasted from the original source. Include the purpose of the database and the subject matter it covers. This may be four or five sentences; and

A Database Management System or (DBMS) is an essential tool for any organization or company in today’s modern world. A DBMS is “a group of programs that manipulate the database and provide an interface between the database and its users and other application programs” (Stair & Reynolds, 2011, p. 189). So in choosing the right DBMS there are many factoring issues with choosing the right one for the company or organization. When choosing a DBMS one has to think about how the system will ultimately help the company or organization with day to day processes and the goals of the company or organization.

There are several important steps to consider when designing a database, as a well-designed database should be deployed and not only support the accuracy and integrity of business information but also avoid redundant data and assist with has enterprise level reporting tasked. If we analyze the

The two main methods of storage are manual and electronic, both methods having their own benefits. The data can be used for analysis to assist the organisation fulfil its future goals and overall vision. All data must be stored in such a way that it complies with the regulations put in place by the government. This not only protects the organisation, but each and every member of the public.

Course Description This course covers database concepts. Topics include data analysis, the principal data models with emphasis on the relational model, entity-relationship diagrams, database design, normalization, and database administration. Policies Faculty and students will be held responsible for understanding and adhering to all policies contained within the following two documents: • • University policies: You must be logged into the student website to view this document. Instructor policies: This

Computer databases are electronic filing system and are usually accessible on a computer network. The benefit of this method is that file access is so easy and quick by using a search process. Faster data access time can increase the productivity of managers and other employees who use data on a regular basis. Another benefit of such a system is that since electronic data is easy to backup in multiple locations, reducing the potential of a permanent data loss. The disadvantages of the electronic file system is that it prone to security since the computers are linked together on a network and hackers can get unauthorised access to your data. Another disadvantage is that it is costly to set up.

Database systems provide efficient access to large volumes of data and are vital to the operation of many organizations.

Coronel, C. (2013). Database Systems: Design, Implementation, and Management, Tenth Edition. Mason, Ohio, United States: Cengage Learning.

related to the use of various information technologies that gather and store data and perform

Before computers were invented, humans would store data in filing cabinets, safes, libraries, and other such places. However, the method of storing data changed when computerized databases were invented in the 1960’s [4]. Storing data in a digital database became more of a time and cost efficient method over storing data in filing cabinets or other like places. Computerized databases provide the user, or users, the ability to access, add, or remove data in a matter of seconds rather than the possible hours it could take, going through hundreds of physical folders.

This paper will compare and contrast five different database management systems on six criteria. The database management systems (DBMS) that will be discussed are SQL Server 2000, Access, MySQL, DB2, and Oracle. The criteria that will be compared are the systems’ functionality, the requirements that must be met to run the DBMS, the expansion capabilities – if it is able to expand to handle more data over time, the types of companies that typically use each one, the normal usage of the DBMS, and the costs associated with implementing the DBMS.

Data has always been analyzed within companies and used to help benefit the future of businesses. However, the evolution of how the data stored, combined, analyzed and used to predict the pattern and tendencies of consumers has evolved as technology has seen numerous advancements throughout the past century. In the 1900s databases began as “computer hard disks” and in 1965, after many other discoveries including voice recognition, “the US Government plans the world’s first data center to store 742 million tax returns and 175 million sets of fingerprints on magnetic tape.” The evolution of data and how it evolved into forming large databases continues in 1991 when the internet began to pop up and “digital storage became more cost effective than paper. And with the constant increase of the data supplied digitally, Hadoop was created in 2005 and from that point forward there was “14.7 Exabytes of new information are produced this year" and this number is rapidly increasing with a lot of mobile devices the people in our society have today (Marr). The evolution of the internet and then the expansion of the number of mobile devices society has access to today led data to evolve and companies now need large central Database management systems in order to run an efficient and a successful business.

When data is stored digitally, it means it’s properly indexed in terms of keywords and content. When the employee needs to find information relating to a specific topic, it’s much easier to just use appropriate keywords and find all relevant documents at once. You can generally access vast amounts of information within a few seconds and you don’t need to leave the desk.