Deployment changes from 12.2 onwards

Please refer to:
1.Oracle® E-Business Suite Developer's Guide Release 12.2 (Part No. E22961-09)
2.Deploying Customizations in Oracle E-Business Suite Release 12.2 (MOS Doc ID 1577661.1)
3.Using the Online Patching Readiness Report in Oracle E-Business Suite Release 12.2 (MOS Doc ID 1531121.1)
4.Oracle E-Business Suite Release 12.2: Online Patching FAQ (MOS Doc ID 1583902.1)

Edition based Redefination ( EBR) - Run Edition and Patch Edition

EBR in DB: Editionable objects are synonym, views and all plsql objects.
In Linux:
echo $FILE_EDITION
 In DB:
select ad_zd.GET_EDITION_TYPE,
ad_zd.GET_EDITION
from dual;

How to set your Edition?
OS:
source /oracle/ebs122/EBSapps.env run or
source /oracle/ebs122/EBSapps.env patch
echo $RUN_BASE - the run filesystem
echo $PATCH_BASE - the patch filesystem
DB:
ad_zd.SET_EDITION(‘RUN’)
or
ad_zd.SET_EDITION(‘PATCH’)

Check Edition Status:
•How to check the status of patching
•In the OS:
adop –status
•From the DB:
sqlplus apps @ADZDSHOWED.sql

EBR and Data:
•Table Data is maintained through triggers
•Seed Data is handled by striping it with an Edition column

Oracle MAF (Mobile Application Framework)

Need to install Jdeveloper 12c.

http://multikoop.blogspot.in/2014/07/adf-mobile-rebrands-to-oracle-maf.html
http://www.oracle.com/technetwork/developer-tools/maf/overview/index.html
http://download.oracle.com/otn_hosted_doc/maf/academy/DevelopingApplicationsWithMAF/presentation.html

Develop your own free IM(Instant Messaging) tool for your website or organization

Openfire server --> Install this at linux server. This is open source and written in java. This uses XMPP (Extensible Messaging and Presence Protocal)

Spark client --> Clients should install this at their local machines

http://www.tecmint.com/create-your-own-instant-messagingchat-server-using-openfire-in-linux/

We can also integrate IM(XMPP) with Oracle Apex. Please check below

https://technology.amis.nl/2012/10/01/how-to-build-an-im-xmpp-solution-with-oracle-apex-and-websockets/