This article is an analysis of the student course selection system and its web application planning. This system is a typical MIS, its development includes two main portions: the development and maintenance of a back-end database, and the development of a front-end application. The requirement for the first portion is to establish a database with consistency, integrity, and security. The requirement for the latter portion is to develope an application that's complete in functionality and easy to use.. The request for the establishment of strong data consistency and integrity, good for the security of the data. For the latter request applications functions, such as easy to use features.
Elective。elective 英 [ɪ'lektɪv] 美 [ɪ'lɛktɪv]adj. 选修的；选举的；选任的n. 选修课程短语：Elective Affinities 亲和力 ; 有选择的亲和性 ; 有择亲和势Elective dictatorship 民选的独裁 ; 选举独裁 ; 民选独裁制elective operation 选择性手术 ; 预约手术例句：Political reporters in a democracy have one central mission: to provide citizens with the information they need to make an informed choice between the candidates for elective office. 民主国家的政治记者具有一项关键使命：向公民提供所需资讯，从而使他们在选举政府候选人时能够做出知情的选择。He has never held elective office, although he ran for president in 2000 and for the Senate, from Georgia, in 2004. 他从来没有过选举团队，尽管他曾在2000年竞选总统，2004年竞选乔治亚州的参议员。
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