"back-end?"... Well, remember this diagram:
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The portal website will be the front, through which the user and the customer service system will access data stored in several backend systems:
- The warehouse management system (WMS) which holds the data for all items stored in the warehouses.
- WINGS (the corporate ERP system, running on SAP) holds procurement and invoicing data.
- the customer database holds all data for each user logging in
- the customer service system contains the data for each order
- the product catalogue is a new system storing all specifications, pictures, manuals and manufacturer details for each product stored in the warehouses.
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