Quiz No.1 (final term)

What is a methods that allow computer programs read or write records in a file?

• Entity Relationship Model

• File Organization

• File Access

• Attributes

It is a technique  used in database design  that helps  describe the relationship  between various entities  of an organization.

• Entity Relationship Model

• File Organization

• Document Organization

• Attributes

It contains the day-to-day information generated from business activities. It is used to update or process the master file. For example, addresses of the employees.

• Transaction File

• Table File

• File Access

• Master File

It describes how records are stored within a file.

• Entity Relationship Model

• File Organization

• Document Organization

• Attributes

It specifies the properties of relationships. For example, vendor code, student name.

• Entity Relationship Model

• File Organization

• Document Organization

• Attributes

Backup files that contain historical versions of other files.

• Log files

• Table File

• Archive Files

• Master File

They contain copies of master and transaction records in order to chronicle any changes that are made to the master file. It facilitates auditing and provides mechanism for recovery in case of system failure

• Log files

• Table File

• Archive Files

• Master File

It consists of diagram consisting of rectangular boxes that represent the modules, connecting arrows, or lines.

• Structured Charts

• Design Strategies

• Structured Design

• Design Architecture

It helps the administrator to understand the flow of data in the system to correct the flaws and get the system working.

• File Access

• File Organization

• Archive Files

• Documentation

The main module is divided into several smaller and simpler sub modules or segments based on the task performed by each module. Then, each sub module is further subdivided into several sub modules of next lower level This process of dividing each module into several sub modules continues until the lowest level modules, which cannot be further subdivided, are not identified.

• Top-Down Strategy

• Design Strategies

• Bottom-Up Strategy.

• Design Architecture