I came across a product called SIMS in the flesh today working at a project in a secondary school. Horrifying. Let me just copy/paste from Wikipedia for you:
SIMS provides a suite of software covering all parts of a schools’ administration, from behaviour and achievement, planning curriculum and lesson structures, dinner money, educational learning plans, data sharing for the 14-19 agenda, managing registration and admissions, and providing teachers, parents and pupils access to all this information over the internet through a Microsoft SharePoint based webpage. […] It is entirely built on Microsoft SQL Server.