The first steps in implementing ISO 9001:2015 in a small to medium enterprise include:

1. Ensuring top management support to provide necessary resources for the implementation process.
2. Assembling a project team and setting up a project sponsor and project manager.
3. Conducting a Gap analysis to determine the extent to which the organization already meets the requirements and what needs to be done to achieve full compliance.
4. Developing a project plan with a timetable, defining activities, responsibilities, and deadlines.
5. Providing basic training on ISO 9001 for project team members.
6. Defining the scope of the quality management system (QMS).
7. Mapping processes and designing a model of how the organization works as a set of interrelated processes.
8. Documenting processes and starting to measure performance.
9. Performing internal audits and management reviews to decide if the organization is ready for a certification audit.