Database design concept
Introduction
Databases are being used as the backbone of the business as they provide the effective data management and ensure the integrity, consistency and availability. The report will discuss the issues and applications within the business environment and database system. It will also analyse the features and benefits of the database management system for the organization. It will also provide the entity relationship model for the database structure. The database life cycles and development process will be discussed to prepare the database design for the organization. Later, the implementation process will be discussed with consideration of the recommendations and monitoring.
Task 1
There are several database applications those can help Sainsbury to manage the data. The organization can use the Microsoft Access because it is suitable for the small and medium size businesses and provide the required number of the features and functions. The database is effective to use in comparison of the client-server database systems. It can be import and export easily with the Microsoft office products (Coronel and Morris, 2016). Visual Basic for Access enables the customization of the code according to the demand to automate the operations and handle the data more effectively.
Also, the database files are used to create the web applications and ensure the smooth and reliable data security and performance. The organization has availability of the vast set of the functions to support the relationship management, data storage, security and decision making in the business. The organization has application of the database to record the sales made in the day. The application is also used to manage the product details, employee and customer details and the orders (Vine, 2012). The same information is also processed through the application to ensure that the decisions are more relevant to the business scopes in the market. However, the use of the database is not free from the issues and challenges:
Integrity: It means to manage the data accuracy and consistency in the application to ensure effective data processing. The database faces integrity issues when there are not effective rules and procedures to ensure the smooth management. Entity integrity is required to manage the uniqueness of each row in the table whereas referential integrity is used to manage the relationship with other tables. Entries within the columns are essential to determine through domain integrity whereas user-defined integrity rules can impact the database for the accuracy if they are not effectively designed.
Security: databases mainly face the issue of the security due to the programming code, incorrect configuration and poor data types. For example, the acceptances of the SQL queries in the simple and executable form can allow the attacker to nest the code and execute own operations on the database (Bosc, 2013). Security is essential to achieve on the physical and logical access.
Recovery: The database might face the issue of the recovery when there is no effective control on the user activities and there is no log for the rollback actions. If the transaction fails and it has changed the some values, it is not possible to rollback without the back tracing of the action. The recovery is essential to handle the data loss, damage and unwanted usage (Wirtz et al., 2014).
Concurrency: If two or more transactions are working at a time on a same set of the values, the database has to manage the concurrency as the poor management can provide outdated values to the processes and they can further lead issues in decision making. The concurrency is required to manage when there are multiple users and actions on the database at a time.
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Unit17 Database Design Concepts
Unit17 Database Design Concepts
Unit17 Database Design Concepts,Databases play an integral part in commercial domains, they provide users with a tool in which tostore, model and retrieve data. Database development is fundamental in the area of computingand ICT within organisational contexts. Database Management Systems (DBMS) provide thesystems
Unit17 Database Design Concepts
1.0 INTRODUCTION
Databases play an integral part in commercial domains, they provide users with a tool in which tostore, model and retrieve data. Database development is fundamental in the area of computing and ICT within organisational contexts. Database Management Systems (DBMS) provide the systems, tools and interfaces by which the organization can manage their information and use it to assist in the effective running of the organization. Databases offer many links to others such as programming, systems analysis, HCI, as well as embracing issues of compatibility addend-user interfacing.This unit explores database architecture, DBMS and the use of databases in an organizational context. Database design techniques are investigated and successful learners will be able toapply theoretical understanding to design, create and document a database system.1.1 Aim:
To give learners opportunities to develop an understanding of the concepts and issues relating todatabases and database design as well as the practical skills to translate that understanding intothe design and creation of complex databases.1.2 Objectives:
On successful completion of this unit a learner will :1.Understand databases and data management systems- Understand database design techniques
