Problems of the architecture design in the system integration

This thesis studies the problems and their reasons a software architect faces in his work. The purpose of the study is to search and identify potential factors causing problens in system integration and software engineering. Under a special interest are non-technical factors causing different kinds of problems. Thesis was executed by interviewing professionals that took part in e-commerce project in some corporation. Interviewed professionals consisted of architects from technical implementation projects, corporation's architect team leader, different kind of project managers and CRM manager. A specific theme list was used as an guidance of the interviews. Recorded interviews were transcribed and then classified using ATLAS.ti software. Basics of e-commerce, software engineering and system integration is described too. Differences between e-commerce and e-business as well as traditional business are represented as are basic types of e-commerce. Software's life span, general problems of software engineering and software design are covered concerning software engineering. In addition, general problems of the system integration and the special requirements set by e-commerce are described in the thesis. In the ending there is a part where the problems founded in study are described and some areas of software engineering where some development could be done so that same kind of problems could be avoided in the future.