Reference no: EM131204514
Database Models and Legacy Systems
Databases evolved from flat file systems. As technology advanced, the limitations of flat files became evident. The database model has evolved to meet the business needs of the time. As the information age evolved, organizations realized there was a need for a different type of management system, one that could store large amounts of data, retrieve the data quickly, secure the data, and share the data. Hierarchical and network database models evolved first, followed by relational and object-relational database models.
However, not all organizations have moved with the times. Often, older database systems still work well, and the cost and time needed to convert to a newer database model prohibit the change. A legacy system is one that uses old, outdated technology. Many businesses and government agencies continue to use legacy database systems consisting of older hierarchical and network technologies.
To prepare for this Discussion, identify a legacy system in a business or government agency (federal, state, or local). Many online sites can be used to identify existing legacy systems. With these thoughts in mind, respond to the following prompts:
- Should the agency continue using a legacy system? What are the benefits and drawbacks of continuing to use the legacy database?
- Discuss the needs of the agency and consider the benefits and limitations of each database model.
With these thoughts in mind, make a recommendation to keep the existing system or to upgrade to a new design based on your answers to the questions above.
|
What weaknesses were found in the security screening methods
: What weaknesses were found in the security screening methods used prior to the 9-11 attacks?- What other weaknesses/failures were cited as contributing to the 9-11 attacks?
|
|
What is the implication of a particular teaching strategy
: What is the implication of a particular teaching strategy, technique, or methodology in the learning process of English Language Learners in the classroom?
|
|
Creating and populating a database
: Suppose you have a small retail store and decide to create a database to track sales. You have information about recent sales that you want to use for testing the database. View all or part of theMySQL tutorial on Lynda.com to learn how to install..
|
|
What club size maximizes total utility produced by the club
: Assuming the club chooses G optimally given its member ship; calculate the loss due to membership of a club with suboptimal size.
|
|
Database models and legacy systems
: Databases evolved from flat file systems. As technology advanced, the limitations of flat files became evident. The database model has evolved to meet the business needs of the time. As the information age evolved, organizations realized there was..
|
|
How research questions were supported by your research
: Study Results: In 50-100 words, state your research questions, describe how they were supported by your research, and then include visuals (e.g., graphic/charts/diagrams) to illustrate the parts or results of your study.
|
|
Describe aspects of your profession in human services field
: Describe the aspects of your profession in human services field as the general applications that may apply most or all other humn service profssions.
|
|
Show that the resulting provision of public good is optimal
: What would be the provision of public good if the decision were taken by a majority vote, assuming that the cost is equally shared in the event of public good provision? Compare your answer with part b, and interpret the difference.
|
|
Size of the payload in the first fragment
: In an IPv4 packet, the size of the payload in the first fragment, in octets, is equal to Total Length - (4 × IHL). If this value is less than the required minimum (8 octets for TCP), then this fragment and the entire packet are rejected. Suggest a..
|