Data protection management sounds like a programme and at small scale it is four documents that are kept current. If those four exist and are true, you can answer almost any question that arrives. If they do not, no amount of policy writing helps.
The record of processing
What you hold, why, who receives it, how long you keep it. Article 30 of the GDPR asks for it and it is useful even where it does not apply, because it is the map every other task reads from. Keep it at the level of systems rather than fields or it becomes unmaintainable.
The vendor list
Every company that touches personal data for you, with whether an agreement is in place and whether data leaves the country. This is the list that is always longer than expected once sub-processors are counted, and it is the input to the recipients section of every notice.
The request log
Every access, deletion, correction and opt-out request with its receipt date, its due date and its outcome. Two open requests at once is the point at which memory stops being adequate, and that point arrives much sooner than people expect because requests cluster after any public incident.
The versioned notices
The privacy policy and the cookie table, each with an issue date and the previous versions kept. The question is never what the policy says, it is what it said at the time, and only versions answer that.
What is optional at this size
A risk register, a formal training programme, an appointed officer, a maturity assessment. All are real things at larger scale and all are ways of avoiding the four above when the four are what an enquiry actually asks for.
Questions people ask about data protection management
Who should own this?
One named person who has the authority to ask other teams questions. The role matters less than the name; an owner-less programme produces documents nobody maintains.
How often should the four be reviewed?
Annually as a floor, and whenever a new vendor or a new collection point appears. The trigger-based review is the one that keeps them true; the annual one catches what the triggers missed.
Is this enough to say we are compliant?
It is enough to answer the questions honestly, which is a better position than a claim. Nothing on this site is legal advice and nothing here certifies compliance.