Work With Me — Ypifany

Signal → OSI → Action → Role

How a pulse becomes meaning. Every layer makes a decision that assigns a role.

Signal

Pulse exists — light, electricity, radio — potential only

no meaning yet

1. Physical

Hearing: hardware senses it — heard / not heard

no role yet

2. Data Link

Recognizing: identify source — join / ignore

Member / Outsider

3. Network

Addressing: deliver or deny — route / block

Neighbor or Guest / Unknown

4. Transport

Permission: door or port check — accept / reject

Conversant / Intruder

5. Session

Conversation: keep talking or hang up — maintain / drop

Active session / Ended

6. Presentation

Translate: make usable — usable / unusable

format or crypto success/failure

7. Application

Meaning: act on it — use / discard

applied / ignored

RMF Lifecycle

The operating rhythm that governs how roles and controls are chosen, tested, and adapted.

Prepare

Know yourself: blind spots, habits, mission, risk tolerance

Ground Zero inventory

Categorize

Draw boundaries: what’s inside, what’s outside, potential impacts

system and data impact

Select

Decide behaviors: which actions and roles are allowed per zone

control baselines and tailoring

Implement

Put it in place: router, firewall, DNS, VLAN configuration

controls live in the stack

Assess

Test reality: do signals get the intended roles at boundaries

evidence and findings

Authorize

Own the risk: we will operate with these role assignments

explicit risk decision

Monitor

Keep alignment: drift, change, feedback → adjust