Based on the problem frame, the problem frame of WSOSR based problem domain, capability domain and system domain was given, the modeling for requirement of WSOSR based mapping matrix was proposed, then the feasibility of this method is verified by analyzing the example of the requirement for attacking the Surface Ship.

Based on the recent research progress and fruit of software requirements engineering,a new expression model of viewpoint based on problem frame is proposed and its characteristics and application are presented through a case study.

Based on the idea and method of problem frame,consistency of viewpoints,integrated manner and integrated process of viewpoints are analyzed and discussed,and a method of integration of viewpoints based on problem frame is proposed.

This article analyses the character of the section parameter,advances the thought of the irregular-frame glulam to be used for making European-wooden windows,studies the irregular-frame glulam manufacture process,and analyses the virtue in saving on wood material and prominent benefit brought by irregular-frame glulam manufacture technology.