Which practice focuses on effective software creation in OpenSAMM?

The focus on effective software creation in the Open Software Assurance Maturity Model (OpenSAMM) is primarily represented by the practice of Construction. This practice emphasizes the importance of building secure software through sound development practices. It includes aspects such as secure coding standards, code review processes, and leveraging automated tools to ensure the security measures are integrated during the development phase.

By concentrating on Construction, organizations aim to establish a foundation for security within the software lifecycle, thereby reducing vulnerabilities early in the development process. This proactive approach ensures that security is not an afterthought but a fundamental aspect of software engineering, optimizing the overall security posture of the application before it reaches integration testing, documentation, or post-release support stages.