Software innerSourcing has been attracting attention over the past decade in terms of procuring human resources. It can make any employee become a member of all projects in the company by adopting an Open Source Software (OSS) development style. For encouraging healthy employee participation on software innerSourcing, it is important to understand what motivates them. This report creates a visual model using the iStar framework, a goal and actor-oriented modeling methodology, to develop an understanding of employee motivation for software innerSourcing. We interview six employees who participated in one web application development project via software innerSourcing. We then create iStar models based on the interview results. They can be used to explain what motivates employees to use their time for other projects in software innerSourcing.