In the past few years, due to changes in industry structure, market and the saturation of the domestic
market, information service firms have started to develop the international market. Hence, to continue
running their operations and maintain profitability, they should effectively control the related factors
in the development of targeting a market. The purpose of this paper is to find the critical operational factors
of the information service industry in developing the market and to provide a referential framework
for operations in the information service industry. This research is firstly base on the business model discussed
in relevant literature, using cross-case study to observe different domains for the operational
strategies and critical factors of those top information service companies combined with thorough interviews
with their top management executives, experts, and consultants. Finally, we concludes by proposing
six elements of business model and 20 critical factors for using AHP method, and also calculates the
quantitative weight of those elements and factors. We also take typical commercial software companies
for examples to analyze their strategies of entering the international market.