Short functional text is a text that has social function to inform something. It's called short functional text because the text is short and has a specific information.
What does short functional text consist of? Kinds of functional texts are announcement, short message, advertisement, label, sign, notice, pamphlet, brochure and the other short texts.
The following is an example of short functional text in the form of announcement.
To all visitor of Roxy Jember
Due to repair our basement and the stairs to the second floor, we will have closed for 3 days on 20-22 May 2012. You can visit us again on 23 May 2012.