I have seen a lot of sites using this URL structure:
webapp/wcs/stores/servlet
webapp/wcs/stores/OrderShippingDisplayView
What application is it? Lots of the competition of my client sites use this in their sites.
I suspect down-vote mob for this but here goes..The application is IBM WebSphere Commerce, a Java based application. Very powerful application, but obviously for enterprise companies, so that means your customer must be ready to shell out some big bucks. I'm not sure if you can offer this directly to your customer though, or if you need to become an IBM certified partner. It offers call center, sales center and complete warehouse distribution control; amazing software. We use the application - has multi store, multi language and multi development team country office based systems. It starts around £100,000
You asked about justifying the software. I don't wish to sound rude but this major eCommerce software and may be out of your price bracket:
Gartner Magic Quadrant - the world famous ecommerce tradeshow marked the following eCommerce platforms as leaders:
IBM WebSphere Commerce
ATG Commerce (Oracle)
Hybris
Their criteria for selecting eCommerce companies:
On top of that the price can be justified by the fact that it is IBM branded software.
(Note: these points, this is about the eCommerce partner not the client, so it says that IBM or Oracle should have at least 50 active production customers who use their software with at least 10,000 tps per week). I was surprised Venda Ecommerce was not mentioned since Boohoo.com/Gorgeouscouture.com gets around 4000 orders per day.)
And much more. There should be a wiki on questions like this. WebSphere Commerce is enterprise driven, it is for enterprise companies and the £100,000 figure is not even the cream on top - let alone the cherry. On a positive note they now offer the following versions:
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Express (low) (version 7)
Professional (mid) (version 7)
Enterprise (high) (version 7)
Cloud (high - enterprise only, new for 2012) (version 7 and 8 ***)
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6 ** WCS 6 is an obsolete environment now and organizations are actively encouraged to upgrade. 8 ** not released see WebSphere Commerce 8
Hope that justifies it.