IBM Software Group explained

IBM Software Group (SWG) was one of the major divisions of IBM. Since 2010, it was sub-divided into two groups: Middleware and Solutions^{[1] [2]}

See List of IBM products#Computer software for a list of actual IBM software products.

Middleware Group

• Information Management Software - database servers and tools, text analytics, and content management.
• Rational Software - Software development and application lifecycle management. Acquired in 2002.
• Tivoli Software - Systems management. Acquired in 1995. Re-branded as 'Cloud & Smarter Infrastructure' (C&SI) in 2013.
• WebSphere - An EJB development environment, container, and a series of pre-packaged applications, primarily for management interfaces and web commerce.

Solutions Group

• Lotus Software - Groupware, collaboration and business software. Acquired in 1995.
• Business Analytics - Cognos and SPSS
• Industry Solutions - Enterprise Content Management, Enterprise Marketing Management and B2B&Commerce

References

1. https://www.informationweek.com/software/application-optimization/exclusive-ibm-reorganizes-software-group/222300627 Exclusive: IBM Reorganizes Software Group
2. Web site: IBM Software Group. German.