• Intelligent objects introduce a new vision for strengthening communication, relationship and business. Each system must be able to communicate with humans and non humans and its capabilities bring scalability, adaptability, flexibility and greater efficiency. • IoT generates a big growth of complexity and a new method is necessary to correctly design app. • We have developed on the field the method Here&Now to permit to manage contextual, liquid, intelligent and connected applications. This means designing software with a level of new cognitive artificial intelligence able to deploy applications that have a level of understanding depending on context; it learns from events and have some level of autonomy with respect to routine activities.