Def 

Store server model based on Location.

Marketing server model.

Services server model.

Membership interfaces for user data access layer.

Service to allow the access to the menu functionality

Interfaces for (Order/Money) Processing data access layer

Interfaces for categories data access layer

User data access layer with membership realisation

Interfaces for auctions data access layer

Interfaces for data access layer to the attachment.

Interfaces for conversation data access layer

Interfaces for work data access layer

Category data access layer

Data access layer to store. In accordance to personal stores

Social Network server model.

Order/Money Processing data access layer

Data access layer to attachments

Conversation data access layer

Data access layer to User.

Auctions data access layer