This paper is focused on the process of design and implementation of information systems in small businesses and factors that influence this process. The course of the process per-formed by selected company is first mapped and subsequently analysed by means of case studies of real projects implemented by the company. This analysis points to the frequent occurrence of variances of the projects with the mapped process, especially in the analytical part of the process, and major impact of different psychological and sociological char-acteristics of the client or its representatives on the progress of the project. Based on these findings innovative process changes are suggested. The first change is modification of the analytical process to include acquisition of information on the characteristics of the client and to be more adaptable to the nature and scope of the project. The second is categoriza-tion of the client based on the identified characteristics and assessment of these characteris-tics as potential risks of the project. The last change is the adoption of agile approach to the process, allowing greater process flexibility with respect to the needs of specific clients and higher quality outputs.

The main goal of diploma thesis is to propose a model for metrics description and metrics themselves, which will be used for different project areas effectiveness and performance evaluation during core banking systems implementation. The second goal is to describe metrics using MBI (Management of Business Informatics) model and compare results. The thesis has the next structure: - theoretical part, where main terms and research works which addressed to the same topic are described; -analytical part, where models for metrics description and metrics will be introduced; - conclusion, where results will be evaluated and models will be compared.

The reason for the study is that IT-enabled organizational change processes such as information system implementations have high costs and disappointing results. Studies to identify causes of the mentioned failures are mainly based on a variance approach. This study applies another approach which is not yet performed in this field of research and affects several themes. Based on a process approach data is compared with ideal-process theories to identify the generative mechanisms causing the unfolding of the process. Thus, the study identifies a recipe and not the ingredients.