Hi
development of a portlet or web application is a question that cannot be answered in a forum post (in the end this is a decission you need to make by yourself, not by third persons). Google a bit about what is the purpose of portlets vs webapps, check if the functionality of a Portal (MWS in this case) is something you need or if you prefer to develop all you need on you own, check if it’s possible that some of the portlets will be reused for other projects…
Developing the UI in you screenshot can be done both with webapps as well as with a portlet application. In a portlet application you need to think a bit in a different way, since the screen is divided in areas defined in the Shell. Have a look at the existing shells to see how that works.
The “accordion” are on the left side is already there in v8, in the “noodle” shell (this is one of the advantages of using portlet apps… you can reuse your portlets for other ‘applications’).
A portlet application can use almost all controls (i believe only 4 are “non-portlet” controls). On the other hand, there are some other controls that cannot be used in a web application, like ‘People Picker’, mostly related to MWS functionality.
hope this helps,
Javier
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