Design of the Travel Impressions model in spirals

(The project can be found at https://github.com/dzenanr/travel_impressions.)

We will start the project by designing a domain model in spirals (see the model directory in the project); this is step one in our schema. This new project will allow readers to follow our approach in order to make their development of a first web application with Dartling easier. The project will evolve, but in a way that reflects the usual project progression with Dartling.

The domain of the new project is Travel. The principal model of the Travel domain is called Impressions. The objective is to create a web application that will allow young travelers to inform their families and friends about their impressions of visited places without losing too much time. With the help from someone in the family or from a friend, their impressions of visited places may be enriched by web links. Even a traveler may send only an e-mail message about impressions of visiting certain...