The topic of the thesis is issue of security during the application development. The main emphasis is being placed on web applications. The goal is to define a framework for managing the life cycle of applications to meet the security minimum. The objectives of the work are achieved by study of available resources and their subsequent analysis. The target audiences are software developers interested in learning more about how to create secure applications. The work describes the areas that are crucial for security of applications. Work contains security standards which we can use for defining security requirements of applications. Furthermore, there are mentioned the most serious security vulnerabilities and ways how to avoid them. It descr...