What is the modern, unofficial digital forensics process model that sees the most real-world application to investigations?

To my understanding and research thus far which may be incorrect, I have gathered that there is still no *official* model to follow for digital forensic investigations. However, there are a number of proposed models such as:

- First proposed methodology from Politt outlines: Acquisition>Identification>Evaluation>Admission.

- DFRWS investigative model outlines: Identification>Preservation>Collection>Examination>Analysis>Presentation.

- Abstract digital forensics model (ADFM) outlines: Identification>Preparation>Approach Strategy>Preservation>Collection>Examination>Analysis>Presentation>Returning Evidence.

- Integrated digital investigation process (IDIP) outlines: Readiness Phase>Deployment Phase>Physical Crime Scene Investigation Phases/Digital Crime Scene Investigation Phases>Review Phase. …

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