What Should IT Provide?

For corporate users of collaborative tools, what should IT provide?

For ease-of-use, many corporate users are going to external services, looking for applications to manage wikis, photos, blog posts, and more. These external services usually have excellent support and reliability, and various kinds of training and help are available.

But if IT could provide these same services, but designed for corporate use, here are some of the things the IT services could provide (in no particular order):

LDAP authentication

ensure appropriate licensing

maintain back-ups, and the ability to provide restores

secure or public rss-feeds

appropriate server infrastructure

centralized profile management (what group someone is in, projects they are on)

security

more to come, I'm sure