I. Introduction
Today, with the rapid development of information technology, higher requirements have been put forward for cross platform data interaction. With the increasing diversification of enterprise business and explosive growth of data scale, there are certain differences in data formats between various platforms and application software, resulting in a large number of compatibility issues. This not only restricts the flow and sharing of data, but also poses security risks to the data. At present, although existing PaaS platforms have achieved this goal to some extent, they still face issues such as data format conversion efficiency, data compatibility, and data transmission security. This article studies and designs a platform data format migration and compatibility assurance method that supports cross platform application fusion, thereby improving the platform's operational efficiency and security performance to meet the needs of modern computer systems.