Information Technology has a huge growing in recent years. For developing an information system need to achieve a series development process. But to build a success IS not only need technology but a organizational factor must considered. IS developing often face to challenges, made the project difficult to carry out values with the original plan. So that development team needs to change but also caused extra troubles. And when the system is delivered, there is also need to adapt necessary change because of the outside environment, and it is often costly. This study survey a large-scale information systems development of public sector, we took a team interviews in core member of development team. The interview transcript, verbatim typed in through the establishment of plain text. Text analysis (Textual Analysis) conduct through those text. In this study, the results of the first phase of open coding, summed up two types of open coding, task and technology. Through the 13 open codings, we can identify system flexibilities from the system development process. Both exist and lack flexibilities. Based on the results of data analysis, the overall system development purports to maintain flexibility, you must first ensure that the task flexibilities exist, which most critical is the need to clearly define all the work. Reducing errors in project is the important linkage to technology categories flexibilities. On the other hand, overall lack of flexibility reasons for the project is no clear definition of work requirements, which will directly lead to a lack of flexibility both task and technology. We proposed an flexibilities coding for identify information systems programs. Also evaluation in an empirical large-scale information system development. We also conclude recommendations to getting more flexibilities for this case.