Database System Application in a Company

Many-to-many relationships in a schema ar undesirable because they tend to confuse relationships within a system (Dennis & Wixom, 2003).

Database management systems whitethorn be structured to extinguish the relationships between the info contained in the infobases in one of 3 logical data structures or models (Kendall & Kendall, 1999). These functions are accomplished as follows:

Hierarchical structure. In this structure, the relationships between records form a power structure or tree structure. In this structure, also, all records are mutualist and are arranged in multilevel structures consisting on one root record and any number of subordinate levels. completely data relationships in this structure are one-to-many, as most(prenominal)ly data piece may be related to several other data elements below in the hierarchy, but may be related to only one data element above it. The data level at the highest level of a hierarchy is called the root record, and this root record is the point of debut into the hierarchy. Data elements are stored and located by moving more and more downward from the root to the subordinate data elements until the desired data element is located.

Network structure. In this structure, the logical relationships between data elements may be more complex than is possible in the hierarchical structure, because this structure permits relationships to be many-to-many, as opposed to the one-to-many breastwork in the hierarchical structure

The database computer software used by the company is the Microsoft Access 2002 application, a dower of the Microsoft Office 2002 suite of related programs (Quinton, 2005). The company uses Microsoft Access for the interest purposes and functions:

The ETC, by contrast, is exact-driven and transaction-oriented. The ETC rouse play many roles, but more or less often acts as an independent distributor, linking buyers and sellers to arrange a transaction. ETCs happen upon what overseas customers want to buy and work with a material body of manufacturers to fulfill those requirements. Most ETCs take title to the products involved, but some work on a commission basis.

They keep up with the markets they serve by continual travel, participating in vocation shows in the United States and abroad, and working closely with distributors and customers (Joyner, 1999).

Trigo-Aranda, V. (2002). Microsoft Access, Office XP: Paso a paso. New York: Anaya MultimediaWeek 2: Reasons Companies Expand Globally

When expanding globally, companies are attempting to exploit the comparative advantages of other countries in relation to be of production. The basic model of international trade is structured virtually the concept of comparative advantage. The opening of comparative advantage holds that inversely profitable trade between countries will always be available, because trade patterns will be based on relational prices, as opposed to absolute prices, which is based on the surmise of absolute advantage, wherein mutually advantageous trade between countries capability not always be possible. The reasoning behind the surmisal of comparative advantage is that no single country can have comparative advantage in all commodities. Initially, the theory was based on labor-cost differentials. Today, it is recognized that both supply and demand factors are at work in the determination of relational prices that establish a basis for a mutually advantageous exchange between countries. In spite of significant changes in
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