The project is subdivided into eight work packages including five building blocks (BB) that cover the entire procurement process from eTendering to ePayment. Each BB will develop guidelines to common specifications enabling the implementation of interoperable solutions for their particular cross-border task in public eProcurement.

• eSignature will develop guidelines and specifications and pilot solutions to overcome the lack of interoperability between the different national schemes for electronically signing tender documents.  
• Virtual Company Dossier  will provide interoperable solutions for economic operators in any European country to utilise company information already registered somewhere in order to submit certificates and attestations electronically to any procurement agency.
• eCatalogue will define and test solutions to manage eCatalogues to overcome the lack of a standard definition of eCatalogues used in European public procurement procedures that will be used as part of a bid and as a basis for issuing orders.  
• eOrdering will benchmark existing eOrdering processes and implement pilot arrangements on the data and process level for the exchange of eOrdering documents between all relevant stakeholders highlighting and communicating good practices.
• eInvoicing will benchmark existing eInvoicing processes for the payment of goods and services and implement pilot arrangements on the data and process level for the exchange of eInvoicing documents between all relevant stakeholders.  
• Solutions architecture, design and validation will focus on design and validation of the common specifications and building blocks which together will define the technical interoperability layer required to provide an operational e-business infrastructure. The co-ordinator of this WP will take the role as Technical Director of the project.