摘要：Three development stages of living environment design in China were summarized,characteristics in different stages introduced,and suggestions given in view of specific *** was proposed that design of modern living environment should be harmonious with the whole environment,innovative spirits and creative designs should be highlighted in the living environment,and regional characteristics,historic and cultural succession should be valued.

摘要：Value delivery is becoming an important asset for an organization due to increasing competition in industry. Therefore, companies apply Agile Software Development (ASD) to be more competitive and reduce time to market. Using ASD for the development of systems implies that established approaches of Requirements Engineering (RE) undergo some changes in order to be more flexible to changing requirements. To this end, the field of agile RE is emergent and different process models for agile RE have arisen. The aim of this paper is to build an abstract layer about the variety of existing process models by means of a metamodel for agile RE. It has been created in several iterations and relies on the evaluation of related process models. Furthermore, we have derived process models for agile RE in industry by presenting instances of the metamodel in two different cases: one is based on Scrum whereas the other is based on Kanban. This paper contributes to the software development body of knowledge by delivering a metamodel for agile RE that supports researchers and practitioners modeling and improving their own process models. We can conclude that the agile RE metamodel is highly relevant for the industry as well as for the research community, since we have derived it following empirical research in the field of ASD.

摘要：Concept of city square was introduced and believed as an important component of urban landscape and also a major space for urban residents' activities. Beauty of city square lies in the interaction between environment and social behaviors. By introducing the two-way interaction between city square and users, behavior psychology was proposed as the foundation of environment design of plaza. As more and more attention is given to humancentered design of outdoor spaces, environment psychology has gradually been more applied in the design of various urban landscape spaces. In view of problems in the present square design, relevant theories of environment psychology were introduced to analyze psychological needs and behavior characteristics of people in outdoor spaces, and techniques for human- centered designs of city square explored to build public spaces for city dwellers.