Deployment is a process for making changes or moving API components from one organization to another organization, after completion of logic which we are developing for the business process by a configuration or customization process and unit test for classes and triggers. For deploying Component, production needs at least 75% of your Apex code coverage from your unit test.

The Following Steps must follow for deployment:

• Announce a maintenance window before you start.
• Stop all setup changes on production.
• Create a staging environment.
• Migrate changes to the staging environment.
• Change environmental dependencies and services from testing settings to production values.
• Lock users out of the application.
• Test deploy.
• Deploy to production.
• Unlock the production organization

There are many ways for Deployment:

A. Standard Salesforce feature changesets

(When two organization Connected with each other )

–> Only possible between SandBox and Production environment.

B.Using the Apache Ant Migration tool

(When two organization don’t Connect each other )

–> Possible in every Environment.

C. Force.com Eclipse Editor.

D. Package.

A package is a container of various Salesforce components and elements. It is used to transfer these elements from one Salesforce organization to another.