Ticket Reservations LLC Provides Services

Ticket Reservations Sales Llc Company Provides Services To The Commerc

Ticket Reservations Sales LLC Company manages two primary databases to facilitate its services: the Ticket Sales database and the HR Employee database. These databases support operational needs, including processing high-volume ticket transactions and maintaining employee records. The company’s IT infrastructure and database design are crucial for ensuring data integrity, security, and efficient access, especially given the web-based accessibility of the Ticket Sales database and restricted access to the HR database.

The assignment involves identifying the primary keys for each database, designing field/attribute codes, outlining DBMS components for each database, and creating an Entity-Relationship Diagram (ERD) to illustrate the one-to-one relationship between the Ticket Sales and HR Employee databases.

Paper For Above instruction

Introduction

Effective database design is fundamental in managing large-scale data operations within organizations like Ticket Reservations Sales LLC. With a high volume of daily ticket transactions (500,000), the company relies on two essential databases: the Ticket Sales database and the HR Employee database. These databases serve different functional areas—transaction processing and employee management—each requiring specific primary keys, data structures, and relationships to ensure data accuracy, security, and accessibility.

Primary Keys and Data Codes in Both Databases

1. Ticket Sales Database

The primary key in the Ticket Sales database uniquely identifies each sales record. Given the data fields, the most suitable primary key is the Ticket Number, which must be unique for every transaction. This key ensures that each ticket sale is distinctly recorded, enabling efficient retrieval and management of sales data.

Field codes for each attribute could be established as follows:

• Ticket Number: TKT-XXXX-YYYY, where 'TKT' indicates ticket, followed by a unique sequence number and possibly the date or airline code for added specificity.
• Date of Sale: DTS-YYYYMMDD
• Airline Name: AIR-XXX, possibly an abbreviation derived from the airline’s official name.
• Paid Amount: PMT-XXXXXX, indicating the ticket price in currency format.
• Sold By (Employee Info): EMP-XXX, referencing the employee responsible for the sale.

2. HR Employee Database

The Employee ID serves as the primary key for the HR database because it uniquely identifies every employee within the company. It allows reliable cross-referencing of employee details across different systems.

Field codes for HR data attributes can be designed as:

• Employee ID: EMP-XXXX, where 'EMP' signifies employee and 'XXXX' is a unique numerical or alphanumeric identifier.
• Employee Name: ENAME-XXX
• Position/Title: POS-XXX
• Pay Scale (Salary): SAL-XXXXX, representing salary figures in currency format.

DBMS Components for Each Database

1. Components of the Ticket Sales Database

The DBMS components include hardware infrastructure (servers, storage), software modules, data itself, procedures for data management, and user interfaces. The system must support high concurrency, given the processing of half a million tickets daily, and ensure security due to its web-based access.

2. Components of the HR Employee Database

As the HR database is restricted internally, its components are similar but focus more on internal security measures, access controls, and data integrity. It includes relational data structures, validated input procedures, and security protocols to restrict access solely within the organization.

Entity-Relationship Diagram (ERD)

The one-to-one relationship between the Ticket Sales database and the HR Employee database implies that each ticket sale is associated with a unique employee, and each employee can be responsible for only one ticket transaction in this context. The ERD illustrates this relationship clearly.

In the ERD, two entities—Ticket Sale and Employee—are connected with a one-to-one cardinality. The Ticket Sale entity contains the Ticket Number as primary key, while the Employee entity has Employee ID as primary key. A direct line labeled "sold by" with a one-to-one notation links the two, indicating each ticket sale is linked to exactly one employee, and each employee is linked to one ticket sale.

This relationship can be represented as follows:

• Ticket Sale (Ticket Number PK, Date of Sale, Airline Name, Paid Amount, Employee ID FK)
• Employee (Employee ID PK, Name, Position/Title, Pay Scale)

The ERD emphasizes referential integrity and the one-to-one link between individual tickets and their responsible employees, facilitating accurate tracking and secure access management.

Conclusion

Designing effective databases for Ticket Reservations Sales LLC requires careful consideration of primary keys, data field codes, system components, and relational structures. The primary keys ensure data uniqueness, while the ERD establishes clear relationships between tickets and employees. These elements contribute to a robust, secure, and efficient data management system capable of supporting high transaction volumes and maintaining internal confidentiality for HR data. Proper implementation of the outlined design principles enables the company to optimize operations, enhance data security, and support future scalability.

References

• Elmasri, R., & Navathe, S. B. (2015). Fundamentals of Database Systems (7th ed.). Pearson.