题目内容
prior to the UML, there was no clear leading(1)language. Users had to choose from among many similar modeling languages with minor differences in overall(2)power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of(3)discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. Users longed for the industry to adopt one,or a very few, broadly supported modeling languages suitable for(4)usage.Some vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many different(5)modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.
查看答案
搜索结果不匹配？点我反馈
更多问题
在UML中，对象行为是通过交互来实现的，是对象间为完成某一目的而进行的一系列消息交换。消息序列可用2种图来表示，强调消息时间次序的图称为(1)，该图的特点是(2)，强调参加交互的对象的组织的图称为(3)，这2种图是(4)。
A．定量的过程管理B．综合软件管理C．软件子合同管理D．技术变动管理
A．欧拉回路B．哈密尔顿回路C．最大匹配D．最小生成树
一个计算机公司开发的项目需要完成7个任务，其中某些任务只能在其他任务结束之后才能开始。设这7个任务的集合为A={a,b,c,d,e,f,g}，考虑任务集合A上的偏序≤：任务x≤任务y，当且仅当任务y在任务x结束之后才能开始。这7个任务关于该偏序关系≤的哈斯图如图5-5所示。在下列执行次序中，不能按照要求完成这个项目的执行次序为______。
微信支付 
支付宝支付