Productivity software
This is general use software for completing tasks accurately and efficiently e.g. spreadsheets, email.
Strengths of productivity software
There is increased security, productivity and efficiency
Development tools
These are tools for programmers who are creating or modifying software e.g debugger, compiler.Also known as IDE
Strengths of development tools
It is cost effective, highly secure and reliable
Business software
This is specialist software for businesses, often made bespoke for an organisation e.g. project management
Strengths of business software
Increased productivity, efficiency and accuracy