The IDIC model suggests that companies take four actions to build closer relationships with customers: identify customers and understand them, differentiate customers based on value, interact with customers to understand expectations, and customize offers and communications. Buttle's 2004 model has the goal of enhancing customer profitability through steps like customer portfolio analysis, customer intimacy, and managing the customer lifecycle, supported by leadership, data/IT, people and processes. Payne's 2006 five-process model identifies the core CRM processes as strategy development, value creation, multichannel integration, performance assessment, and information management.