Maintaining software systems is getting more complex and difficult task. Code clone is one of the factors that make software maintenance more difficult. A code clone is a code portion in source files that is identical or similar to another. If some faults are found in a code clone, it is necessary to correct the faults in its all code clones. We have developed a maintenance support environment,...

Over the past two decades, considerable efforts focused on improving software quality to satisfy the customers needs in software industry, but it is hard to deal with the customers needs for its vague and inexact characteristic. In order to evaluate software quality accurately and comprehensively, the weights of customers needs and the weights of technical attributes of the software are determi...

There is a pressing need to make software system acquisition more agile and adaptive, through evolutionary modeling, simulation, and development of the system being acquired. Here we’ll describe a new vision for the re-tooling and reengineering software system acquisition into a form we call VISTA, denoting an approach to the virtual acquisition of these systems. We will describe this new appro...

The concept of life-style is becoming a major differentiating trait between population groups substituting for economic and social classes. This paper describes the utilization of the concept of life-style in the context of travel demand models. life-style is defined as a pattern of behavior under constrained resources which conforms to the orientations an individual has toward three major 'lif...

Intelligent building (IB) technologies have widespread applications in the building design and development. In this regard, it is necessary to develop intelligent building assessment models in order to satisfy the clients, professionals, and occupants' growing demands. To this end, this paper proposes an integrated analytic hierarchy process (AHP) and preference degree approach (PDA) under the ...

in recent years, seismic evaluation and vulnerability of the existing buildings, that have been designed based on an earlier seismic design code or designed without seismic design criteria, has been very important. in this paper, the seismic evaluation and vulnerability of concrete buildings, using an old 5- story building with shear walls as an example has been discussed. for this building, fi...