FND_PROFILE and FND_GLOBAL values

FND_PROFILE values:

fnd_profile.value('PROFILEOPTION');
fnd_profile.value'MFG_ORGANIZATION_ID');
fnd_profile.value('ORG_ID');
fnd_profile.value('LOGIN_ID');
fnd_profile.value('USER_ID');
fnd_profile.value('USERNAME');
fnd_profile.value('CONCURRENT_REQUEST_ID');
fnd_profile.value('GL_SET_OF_BKS_ID');
fnd_profile.value('SO_ORGANIZATION_ID');
fnd_profile.value('APPL_SHRT_NAME');
fnd_profile.value('RESP_NAME');
fnd_profile.value('RESP_ID');

FND_GLOBAL values:

FND_GLOBAL.USER_ID;
FND_GLOBAL.APPS_INTIALIZE;
FND_GLOBAL.LOGIN_ID;
FND_GLOBAL.CONC_LOGIN_ID;
FND_GLOBAL.PROG_APPL_ID;
FND_GLOBAL.CONC_PROGRAM_ID;
FND_GLOBAL.CONC_REQUEST_ID;

Examples to initialize the application environment:

v_user_id      PLS_INTEGER  :=  fnd_global.user_id;
v_login_id     PLS_INTEGER  :=  fnd_global.login_id;
v_conc_req_id  PLS_INTEGER  :=  fnd_global.conc_request_id;
v_org_id       PLS_INTEGER  :=  fnd_profile.value('ORG_ID');
v_sob_id       PLS_INTEGER  :=  fnd_profile.value('GL_SET_OF_BKS_ID');

v_resp_appl_id  := fnd_global.resp_appl_id;
v_resp_id       := fnd_global.resp_id;
v_user_id       := fnd_global.user_id;
     
FND_GLOBAL.APPS_INITIALIZE(v_user_id,v_resp_id, v_resp_appl_id);

For more information:
http://docs.oracle.com/cd/E18727_01/doc.121/e12897/T302934T462356.htm