System Life Cycle - Development and Testing

What is the first step in system development?

• Designing the user interface

• Requirements gathering and analysis

• Testing the system

• Writing the code

Why is it important to finalize the file structure?

• It is important to finalize the file structure to ensure organization and efficient data management.

• Finalizing the file structure is not necessary for data retrieval.

• It helps in increasing the file size.

• To make the file structure more complex.

What types of data need to be stored in a system?

• User data, transactional data, operational data, and metadata.

• Historical data, analytical data, financial data, and backup data.

• Sensor data, environmental data, performance data, and log data.

• Static data, dynamic data, reference data, and configuration data.

What is a key field in a database?

• A method for querying data in a database.

• A type of database management system.

• A unique identifier for a record in a database table.

• A description of the database structure.

How do system analysts ensure data integrity?

• By implementing validation rules, normalization, audits, and access controls.

• By relying solely on external data sources.

• By ignoring user access levels completely.

• By using only manual data entry processes.

What are validation routines?

• Validation routines are tools for data visualization.

• Validation routines are systematic checks to ensure data meets specified criteria.

• Validation routines are methods to delete unnecessary data.

• Validation routines are random checks for data accuracy.

What is the purpose of verification methods?

• To increase the complexity of a product or system.

• The purpose of verification methods is to ensure that a product or system meets specified requirements and functions correctly.

• To reduce the cost of production without quality checks.

• To create new requirements that were not previously defined.

How can data files be linked in a database?

• Data files can only be linked through direct file paths.

• Data files cannot be linked in a database.

• Data files are linked by copying data into a single file.

• Data files can be linked using foreign keys and join operations.

What should be tested once the file structure is created?

• Test file integrity and accessibility.

• Test file creation time and date.

• Test file size and format.

• Test file ownership and permissions.

Why is it crucial to test the system before it goes live?

• To reduce the overall cost of the project.

• To impress stakeholders with a flashy presentation.

• It is crucial to test the system before it goes live to ensure reliability and functionality.

• To avoid any form of documentation before launch.