This book introduces a requirements development framework called Domain Driven Requirements (DDR). DDR is based on business and conceptual modeling to capture system requirements based on the business domain knowledge. The purpose is to improve business/IT alignment by using Requirements Engineering (RE) framework that integrates business modeling practices with RE concepts and practices.. DDR consists of business and conceptual modeling guidelines, framework design in terms of phases and steps description, and an example application that demonstrate some of its aspects and features. The example shows how the DDR can be used to produce conceptual domain model that can be used in the design and implementation phases using the Domain Driven Design (DDD) approach. DDR framework focuses on business and conceptual modeling aspects in the context of RE. DDR is pluggable process where other aspects in RE could be (and should be) added based on each project circumstances.