某高校的管理系统中有学生关系为:学生(学号,姓名,性别,出生日期,班级),该关系的数据是在高考招生时从各省的考生信息库中导入的,来自同一省份的学生记录在物理上相邻存放,为适应高校对学生信息的大量事务处理是以班级为单位的应用需求,应采取的优化方案是()。
电子政务根据其服务的对象不同,基本上可以分为四种模式。某政府部门内部的“办公自动化系统”,属于()模式。
A project management technique that is currently in widespread use is the () . The purpose of this technique is to detail, in hierarchical fashion, all of the activities that are required to meet project objectives. There are some special activities called () , which are events that signify the accomplishment or completion of major deliverables during the project. Most system development methodologies also provide () , whose purpose is to contain the various pieces of relevant information – feasibility assessments, schedules, needs analysis, and so forth – in a single place so that they can be presented to project clients and other related parties. Several types of important network diagrams are used in project management. () was developed to make clear the interdependence between project tasks before those tasks are scheduled. () offers the advantage of clearly showing overlapping tasks.
2005年5月4日,张某向中国专利局提出发明专利申请;其后,张某对该发明作了改进,于2006年5月4日又就其改进发钥自中国专利局提出申请时,可享有()。
希赛公司支出20万元购买了某市场预测信息,由于此信息的采纳,希赛公司多得到了100万元的利润,对希赛公司而言,这个市场预测信息的()。
软件风险是指在软件开发过程中面临的一些不确定性和可能造成的损失。软件风险大致可以分为三类:项目风险、技术风险和商业风险。下列叙述中,()属于商业风险。