4) Netweaver Business client 3.0/4.0/5.0 (SAP Business client 6.0)
SAP businessclient 6.0 is the latestchild inthe SAP business client family formerly known as SAP Netweaver business client (NWBC). It is a rich user interface desktop client 6.0 provides the following:
Role based single entry point to SAP business applications efficient, intuitive and complete user experience with integration of various UI technologies in particular SAP GUI Web Dynpro. ABAP and SAP Fiori step by step approach for achieving an SAP fiori user experience on windows desktops.

Netweaver Business client for HTML: it is representation of SAP over the web using Web dynpro ABAP screens or JAVA screens.
a) IT requires activation of 'nwbc' service in sicf.
b) Setup a fully qualified hostname in RZ10 using parameter icm/host_name_full
c) Check whether parameter icm/server_port_o is set with port and port and protocol
http://hostname:8000/nwbc isused to navigate to NWBC for HTML

5)SAP FioriClient:
It is based on UI technologies with ATOM protocol, JSON, WSDL and SOAP Languages. it provides a file based GUI which will be querying the database and providing the access to various Front end devices such as desktop, webtops, mobile devices, tablets and hand held devices. It requires deployment of SAP Netweaver gateway and UI Specific add-on. (Ex: ERP, CRM, SRM, SCM, GRC)

6) SAP GUI for Java products like enterprise portal:
Enterprise portal XI,MI, SLD (System landscape directory) and SAP Java engine are built using java language. These applications are accessed on the web using port 50000.