Database Development Lifecycle: 7 Phases Explained With Examples
Databases are computerized pieces of information, but creating them has a specific database development lifecycle. If you need Database development solutions, it’s important to know the lifecycle well so you understand what part of the process you are working with.
What Is the Database Development Lifecycle?
In today’s digital world, there’s a database for everything. The New York Times says there’s even a database for databases! And each of those databases has a lifecycle. This step-by-step design process builds, tests, and maintains the information. The cycle aims to integrate the database with your organization’s goals while maintaining efficiency.
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Phase 1: Requirement Gathering and Analysis
As database design phases go, this is the simplest. The initial phase gathers information and helps to determine the needs for the database. Developers define the objectives for the database and place constraints upon it.
Phase 2: Conceptual Database Design
Models help to identify attributes that the database needs to suit the company’s goals. This part of the process takes diagramming and helps to figure out issues upfront before they become real problems.
Phase 3: Logical Database Design
In the third phase of the database development lifecycle, the concept is placed into a logical design without a management system in place. Developers don’t worry about the Database Management System at this stage of the game, which comes later.
Phase 4: Physical Database Design
The logical model gets technical as developers customize the database for specifics. Many people think of databases as minuscule, but The Wall Street Journal points out that they are actually taking up quite a bit of land. Finding the property and placing the necessary database can take quite a bit of time in the development process.
Phase 5: Database Implementation and Development
Once the first four phases are in place, the database is built with the right code. Developers use tables, constraints, views, and other items, then they migrate the data you already have with the correct formatting and start using the database in a small fashion.
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Phase 6: Testing and Quality Assurance
It’s not a good idea for the database design phases to stop there without proper checks and balances. You want your database to be high-quality and well-tested before you unleash it onto your customers. Developers need to run tests on the performance, security, and integrity. Once it meets all of the requirements and everything is in working order, it can move forward.
Phase 7: Deployment, Monitoring, and Maintenance
This final stage can be broken into three, but they are all the last steps in the process. They include:
- Live Production
Once the database has been tested and seems to be running well, it can ‘go live’ and start to gather information, as it was created to do.
- Monitoring
Monitoring the database even after it has been tweaked, fine-tuned, and tested is essential. It may need updates and adjustments in the future, for example, and needs attention to continue to perform at the highest levels.
- Optimization
Even though your database was created for a purpose within your company, that need may shift as your company grows. The database may need to be adjusted as that evolution happens.
In conclusion
Most students study life cycles in school, but they skip over the lifecycle of database development. For those in the business world, that life cycle becomes much more important than that of plants, reptiles, and other school-learned cycles. Whether you are at the beginning of the process or somewhere in the middle, the professionals at Atlantic BT are here to help. The right developers can streamline the database lifecycle to fruition, then keep it on track long-term.
