The Installation and Getting Start guides show how to install BRMS/BPMS 6 either in a fresh EAP 6 instance (many files are overwritten) or using the deployable package to install it on JBoss WS / Tomcat. However there are no instructions describing how to install it in an EAP 6.1.1 already in use. Customers need the instructions about how to install the deployable package for BRMS / BPMS 6 in a current EAP 6.1.1 instance, like we have today for BRMS 5.3.1 over EAP 6 (this is really a typical and common scenario): https://access.redhat.com/site/documentation/en-US/JBoss_Enterprise_BRMS_Platform/5/html/BRMS_Getting_Started_Guide/Installing_on_JBoss_Enterprise_Application_Platform_61.html
@Eva - As per instructions here: https://bugzilla.redhat.com/show_bug.cgi?id=1051214#c4
Documented in GA1: http://documentation-devel.engineering.redhat.com/site/documentation/en-US/Red_Hat_JBoss_BPM_Suite/6/html-single/Installation_Guide/index.html#Installing_standalone_package
Seems good for both BRMS and BPMS installation guide.