# Increamental Model ## 1. Introduction ---- - Requirement is devided into small pieces - Each independent chanks passes through the requirements, design, implentation and testing phase - implemented and tested until the product is finish - each of the little chunks are added to the product to the previous release - the process continues until the goal is fulfilled. ## 2. Advantage ---- - Product is developed quickly - The method is very flexible to change . - Easy to testing and debugging. - Initial delivary cost gets lower . - Easier to find and solve bugs ## 3. Disadvantage ---- - Have to get a clear picture of the project - need good planning and organization - Costly compare to waterfall model ## 4. When to use? ---- - For web application and product base companies - When there is an urge for the early release of the product - Where requirement are completely understood