In this topic, we will discuss the various steps performed during the upgrade. The life cycle consists of the end-to-end processes involved in the upgrade. Normally, upgrades are initiated from the development environment followed by the QA/stage/production environment. The following screenshot shows the basic sequence of steps followed in the upgrade for any system in the IT industry:
- Analysis of Enhanced Features and Business Requirements: This step plays a very crucial role in the upgrade process. In this process, the standing committee (technical architect, business owner, and functional owner) decides which features are essential for the new version and how they are useful in supporting the business requirement.
- Installation of Prerequisites for new version: By following the previous process, the infrastructure team makes sure that the entire software is available for the installation and their dependencies are also present.
- Installation of Upgraded Product: In this process, the installation of a new version of products will be done by the infrastructure engineer.
- Configuration and Performance Tuning: Once the installation is complete, it's time to do the configuration and performance tuning for the new product.
- Application Migration: After the configuration is done for Tomcat 7, the upgrade is still incomplete. Now, the most tedious part of the migration starts here, that is, application migration from the current environment to the new system.
- Load and Functional Testing: After the application migration is complete, you have to perform the load and functional testing on the upgraded system, in order to make sure that the application is working as excepted, and also that the new features, which are embedded through the upgrade process, are working according to the business requirement.
- Go live for the new environment.
..................Content has been hidden....................
You can't read the all page of ebook, please click here login for view all page.