http://etrm.oracle.com

This is one of my favourite website from Oracle....

- What you can do with this website -

You can get the latest OBJECT information about any object in Oracle applications.

APPLSYSPUB (Schema) , Has 17 Synonyms and they are very well described. You can explore all schema using this website.

BSC_SECURITY_PKG Base Object: APPS.BSC_SECURITY_PKG
FND_APPLICATION
FND_APPLICATION_TL
FND_APPLICATION_VL
FND_DISCONNECTED
FND_LANGUAGES_TL
FND_LANGUAGES_VL
FND_LOOKUPS
FND_MESSAGE
FND_PRODUCT_GROUPS
FND_PRODUCT_INSTALLATIONS
FND_PUB_MESSAGE
FND_SECURITY_PKG
FND_SESSIONS
FND_SIGNON
FND_UNSUCCESSFUL_LOGINS
FND_WEBFILEPUB