BTEC HND Level 4 Unit 4 Database Design & Development Assignment Sample

Course: Pearson BTEC Levels 4 and 5 Higher Nationals in Computing Specification

The BTEC Higher National Diploma in Database Design and Development is a level 4 qualification that is equivalent to the second year of a university degree. The course will provide you with the skills and knowledge necessary to design, implement and maintain databases. You will learn how to use different database management systems, understand data modeling techniques, and how query databases using SQL. In addition, you will also learn about web application development using PHP and MySQL.

The BTEC HND in Database Design and Development is accredited by the British Computers Society (BCS) and examinations are offered through Edexcel, which is part of Pearson Education.

But BTEC HND Level 4 Assignment sample of Database Design & Development Unit

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We will go through some assignment briefs. Some of the following:

Assignment Brief 1: Use an appropriate design tool to design a relational database system for a substantial problem. 

A relational database system can be designed using a variety of tools, such as pencil and paper or a software application. The most important consideration when designing any database is to identify the entities and the relationships between them.

For example, if we were designing a database for a company that sells books, we would first need to identify the different types of books that the company sells. We might then create tables for each type of book, such as “fiction books”, “non-fiction books”, “children’s books”, etc. Each table would then have fields for the title, author, price, etc.

The relationship between two tables can be defined as one-to-one, one-to-many or many-to-many. In our example, the relationship between the “books” table and the “authors” table would be defined as one-to-many, because each book can have multiple authors, but each author can only write one book.

Once the entities and relationships have been identified, the next step is to create a schema for the database. A schema is a visual representation of the tables and the relationships between them. It is important to create a well-designed schema, as this will make the database easy to use and understand.

After the schema has been created, the next step is to choose a suitable database management system (DBMS) and create the database using the chosen software. The most popular DBMSs are MySQL, Oracle, and Microsoft SQL Server.

The final step is to populate the database with data. This can be done manually or by importing data from another source, such as a text file or an Excel spreadsheet.

Assignment Brief 2: Develop a fully functional relational database system, based on an existing system design. 

A relational database system is a data management system that organizes data into tables of related information. A relational database is composed of one or more tables, each of which contains a set of columns (the field names) and rows (records). The fields in each table are related to one another, and the records in each table are related to one another.

A relational database allows you to store data in a logical manner, which makes it easy to find and use. For example, if you want to find all the customers who live in California, you can search for all the customers who have a state column value of CA.

To create a relational database, you must first design the database tables and then create relationships between them. After the database tables have been created, you can populate the tables with data.

Populating a database table with data can be done manually or by importing data from another source, such as a text file or an Excel spreadsheet.

Once the database tables have been created and populated with data, you can query the database to find specific information. A query is a set of instructions that tells the database what data to retrieve from the tables.

A query can be as simple as asking for a list of all the customers in the database, or it can be more complex, such as finding all the customers who live in California and have a credit limit of $1000 or more.

After the data has been retrieved from the database, it can be displayed in a variety of ways, such as in a table or a list.

The final step is to create reports based on the information in the database. Reports are used to present the data in a format that is easy to read and understand.

Assignment Brief 3: Test the system against user and system requirements. 

It is important to test the system against user and system requirements in order to ensure that the system functions as intended. By testing the system against user and system requirements, you can identify any deficiencies or issues with the system and correct them before releasing the system to users.

Testing the system against user and system requirements is also important in order to ensure that the system meets or exceeds users’ expectations. By doing so, you can help to build user confidence in the system and increase the adoption of the system.

There are many different types of tests that can be performed on a system, such as functional testing, performance testing, security testing, and compatibility testing.

• Functional testing is used to test the functionality of the system. Functional tests are typically conducted by developers during the development process.
• Performance testing is used to assess the performance of the system. Performance tests are typically conducted by system administrators or performance analysts.
• Security testing is used to test the security of the system. Security tests are typically conducted by security experts.
• Compatibility testing is used to test the compatibility of the system with other systems. Compatibility tests are typically conducted by compatibility experts.

It is important to note that not all types of tests need to be conducted on every system. The type of tests that are conducted on a system will depend on the specific requirements of the system.

Assignment Brief 4: Produce technical and user documentation.

Producing high-quality, user-friendly technical and user documentation can be a challenge. It is important to strike the right balance between providing sufficient detail without overwhelming or confusing the reader.

When creating documentation, it is important to consider the audience and their level of knowledge. Technical writers should avoid using complex language or jargon unless it is absolutely necessary. They should also ensure that instructions are easy to follow and include screenshots or illustrations as needed.

User manuals should be well organized and include a table of contents for easy navigation. They should also be written in a clear, concise style that does not require excessive scrolling. In addition, all hyperlinks should be functional and lead directly to the desired information.

It is also important to keep documentation up to date. As new features are added to the system or changes are made to existing features, the documentation should be updated accordingly. Documentation that is out of date can lead to confusion and frustration for users.

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