KDE Frameworks 5 Tier 3 addon with extensible daemon for system-level services
KDED stands for KDE Daemon which isn't very descriptive. KDED runs in the background and performs a number of small tasks. Some of these tasks are built in, others are started on demand. Custom KDED modules can be provided by 3rd party frameworks and applications.
acquired package info from repodata DB: repodata/f0b2606f1dc0294014b17bb8ea9231f0129611b4c9610b9db40f82da2b1f63da-primary.sqlite.bz2
The kf5-kded-devel package contains libraries and header files for developing applications that use kf5-kded.