Barry Boehm

COCOMO 81 consists of three implementations: Basic, Intermediate and Advanced, as described below, according to exactly author: Basic: he calculates the effort and cost for the development of a software, in function of the size of developed lines of codes. Intermediary: ‘ ‘ He calculates the effort of development of software in function of the size of the program, including cost, subjective evaluation of the product, tools, staff and attributes of projeto’ ‘. Advanced: ‘ ‘ It all incorporates characteristics of the intermediate version with an evaluation of impact of cost in each step of projeto’ ‘.

The use of COCOMO 81 started to require updates, in order to adapt the new changes in the cycles of life of software, organizacionais technology, components, notations and cultures. Thus, to supply the modern trends of the software engineering COCOMO II was created. 2.2.1.2 COCOMO II ‘ ‘ COCOMO II, as well as its predecessor, searchs to measure effort, stated period, size and cost, necessary for the software development, since that if it has, as premise, the dimension of the same ‘ ‘. For the calculation of the cost it must be known the stated period and team of work, for then arriving at the final value. To define the size of the program, it is necessary that if it characterizes the measure that will be adopted (lines of code, points for function or points for use case)..

Technology Development

Actively do technology development of crusher Living in an increasingly competitive modern society, development strategy can be treated as the soul and program of long-term development, the correctness of its development strategy is related to the success or failure for business directamente. Therefore, the formulation of development strategies have to be related to the current situation of business, but also close to national policy and market demand. Though, it is hard to stick to innovative road in the competitive market, Hongxing always permeable keep belief and overcome various difficulties. The enterprise successfully developed China s first mobile crushing plant in 2008, solve the future problems of the social waste disposal, has a good social significance and fill the blank of domestic crushing machinery in the field of mobile equipment and technology; all products produced by the enterprise get through the ISO9001: 2000 international quality management system certification; the company trademark is selected as a famous trademark both in Zhengzhou City in Henan Province and; and won the reputation of the best sets of gravel equipment. In 2012, Hongxing mechanical decide to do a big move and a big investment in technology research and development.

According to the reporter that, before June 2012, Zhengzhou Hongxing has launched large jaw crusher, large Impact Crusher, cone crusher impact crusher and large; with the model upgrading of large-scale equipment, mobile crushing plant will also be upgraded. The chairman of Hongxing mechanical, Yang, said: industry technology development is a long-term work, it needs to closely integrate with the market. Especially for scientific research achievements working on productivity, it is also a longer process; We must submit recent and long-term goals, so that we can really play the role of the R & D center. While improving product added value and establishing the corporate brand, Hongxing also want to set a good example for the whole industry..