Software customization is the process of adapting a software program to meet the specific needs of a client or organization. This can include modifying existing features, adding new functionality or removing unwanted features. Customization can be done through configurations and parameterizations within the software itself or through the development of custom code.
Systems integration, on the other hand, refers to the connection and communication between different software systems. This can involve exchanging data between existing systems or creating customized interfaces to allow interaction between systems. Systems integration is important to ensure that information is shared efficiently and accurately between the various systems used by an organization.