Selecting case tools: A decision model

Given the diversity of factors affecting the adoption of a CASE tool, their complexity, by way of the amount of components offered, the strategic importance for organizations of a timely, correct selection of tools, it is of utmost importance to support said selection process. This paper thus proposes a Decision Model which will increase the efficiency and effectiveness of this process and guarantee its completeness. The evaluation method for CASE tools included a set of activities that can be grouped into three major steps: selection and acquisition of CASE tools. development and application of the Decision Model and Analysis of Results. The algorithm supporting the Decision Model used in this research is formed by six finite sequential steps, by means of which a group of CASE tools meeting the case study requirements is obtained. This algorithm provides a quantitative way of comparing different CASE tools and aids the decision-maker, who in this case is the person requiring the tool to support his software development processes. The Decision Model allows the decision-maker to select CASE tools according to different Technological factors. These factors were grouped into two categories: internal and external, the first referring to factors related to the architecture and internal structure of the tools and concentrating on what the tool (isolated from its context) can offer. These in turn were classified based on two criteria: the scope - what the tool encompasses - and the design - what the tool is like. The external categories refer to supplementary factors in the tool environment. Their criteria being support and the solidity of the developing company.