1. A portal system, comprising: a user interface component; process components; a business manager component implementing business functions as services and comprising business logics; a computer processor for executing a model service component, the model service component being arranged between a presentation device and the business manager component and separating the user interface component and the process components from the business manager component; wherein the model service component implements common logic and common functionality with an aspect oriented architecture having aspect components associated with the model service component; wherein the business manager component is arranged to use the common logic and the common functionality provided by the aspect components, the business manager component configured with a service oriented architecture and wherein by running the aspect oriented architecture and the service oriented architecture, the service oriented architecture creates a specific logic to exploit service and the aspect oriented architecture creates generic components to manage the service; a business manager interface, the business manager interface being arranged between the business manager component and the model service component; wherein the model service component is arranged to connect the user interface component and the process components to the business manager component through the business manager interface by using a web services transportation protocol.