Requirement Elicitation Based on Value Chain Analysis

Requirement elicitation is an analysis, abstraction, synthesis, extracted process which obtains real and correct software requirements from users' demands, thoughts and expectations. The accuracy and integrity of software requirements is crucial to the success of the software. Although many software engineering techniques have been applied, incomplete, inaccurate or inconsistent requirements still remain for the enterprise information system which includes rich domain knowledge and multiple users playing various roles in complex organizational structure. From the angle of economic management, the paper presents an enterprise informatization requirement analysis model (EISRAM) and the acquisition processes by value chain analysis after the classification of the demand and reasons for the requirement change are discussed. The new idea and expanding method of software requirement elicitation could reduce software failure rate.