Development support system

A development support system that supports screen development of a Web application that receives a request from a client terminal and that returns a processing result screen compatible with a device type of the client terminal, the development support system comprising:

• a template that is formed of a combination of one or more screen parts and that defines an appearance of each of the screen parts when being displayed on a screen for each of the device types;
• a component development controller that receives, through a developer terminal, a request for development of a component reusable to the screen development of the Web application;
• a component development model that acquires information containing a source code of the component based on an instruction from the component development controller;
• and
• a component development view that displays, on the developer terminal, a predetermined background image compatible with the device type specified by the developer terminal based on the instruction from the component development controller, and that displays, on the developer terminal, a component development region for displaying the appearance of the component which is a development target so as to overlap on the background image,
• wherein, when the source code of the component which is the development target is edited, the component which is the development target is displayed based on the source code in the component development region so as to provide the appearance defined by the template compatible with the device type specified by the developer terminal.