question no.3-midterm

For those who are not working, research one company in the net who is using computerized database systems. Describe the use and/or nature of these systems and describe too the benefits/disadvantages from these systems. Include your reference.

Name: Premiere Products Company

Premiere Products, a distributor of appliances, housewares, and sporting goods is a fictitious company that will use spreadsheet software to maintain company's data. Premiere Products must maintain information about sales reps, customers, and parts inventory as well as store information about orders. The company needs to maintain data on more than one category (customers, sales reps, orders, parts) and is interested in the relationships between the categories.

• The database terms entity, attribute, and relationship. An entity is a person, place, object, event, or idea for which you want to store and process data. An attribute is a characteristic or property of an entity. A relationship is an association between entities. The one-to-many relationship that exists between sales reps and customers in the Premiere Products database. In a database system, a one-to-many relationship is handled by using common columns in the two tables. A database is a structure that can store information about multiple types of entities, the attributes of those entities, and the relationships among the entities. A data file (a file used to store data) is not the same as a database.
  
• Benefits of Database System
  The advantages of database system are: getting more information from the same amount of data; sharing data; balancing conflicting requirements; controlling redundancy; facilitating consistency; improving integrity; expanding security; increasing productivity; and providing data independence.
  
• Disadvantages of Database System
  The disadvantages of database system are: larger file size; increased complexity; greater impact of failure; and more difficult recovery.

www.cs.indiana.edu/classes/a114-dger/fall2002/notes/Eight.html - Cached

Aileen Grace V. Siguenza BSC-MA3 7:15-8:15 pm

question #2-midterm

Research 1 company and describe how they protect their company from internet risks.Also, research for possible risks or dangers and/or impacts of internet - related crimes to a company.

Name: Yokogawa Electric Corporation

Yokogawa Electric Corporation protect their internet from risks by using an enhanced version of the ProSafe®-RS Safety Instrumented System. This new version is smoothly integrated with Yokogawa's latest production control system, CENTUM®VP, and offers improved security and support for Windows Vista. These enhancements strike the optimum balance between improved operational efficiency and safety. it also helps prevent accidents by detecting unusual conditions in plant operations and taking emergency actions such as shutting down the plant. Unlike conventional safety instrumented systems and DCSs, which are regarded as having different roles/functions and operate separately, the operation of ProSafe-RS and CENTUM series can be fully integrated. As a result, ProSafe-RS is held in high regard by users and has been installed in more than 300 projects worldwide since its release.

The danger that one faces by Yokogawa Electric Corporation when browsing in sites with the aforementioned domain clusters is that those sites are more apt to contain malicious code that can infect your computer and launch attacks on other computers. Also, these sites are littered with viruses, or Trojan’s that can create a backdoor on your computer that would allow someone to glean your computer for critical information such as your bank account information, social security number, or other information useful to identity thieves.

Aileen Grace Siguenza BSC-MA3