Based On The Study On The Method Of Clustering Software Yuan Needs To Obtain

In software requirements engineering, users are direct stakeholders. How to deal with massive demand information and get the most accurate requirements is the most urgent problem. Based on a large number of literatures, the author has made a deep comparison and analysis on existing Software requirements acquisition method, adopted a new definition of requirement items-meta-requirement, designed an obtaining process and applied it to practical project, which verified its’ practicability and effectiveness.Firstly, the paper proposed the meta-requirement model, explained the necessity of requirement elicitation in software project, degined the definition of meta-requirement and its’essential factors. The meta-requirement has five characters:accuracy, completeness, traceability, measurability, verifiability. Each of them has been described in detail, and a whole flow of meta-requirement elicitation.Secondly, the paper explained how to using an advanced clustering method for processing raw requirement infomation, which are obtained by introducing a raw requirement info collection model, and finnaly output a requirement tree. By researching on the branches, scenario and child scenario can be got. Considering its’definition and characters, the meta-requirement can be elicitated under the minimum Scenario, called Meta-Scenario.Finally, at the end of the paper is case study. This paper applied the advanced clustering meta-requirement elicitate method to a practical project:an electronic business service platform for tickets. From raw info collection and pre-processing, to cluster and thus output meta-requirements, the whole flow has been demonstrated. The result has proved the feasibily and effectiveness of this method.