---
title: "The Review step"
description: "Step two of the planner: the five views the computed plan is read through, and the chart and readouts of the Overview view."
---

> Documentation Index
> Fetch the complete documentation index at: https://docs.divelogic.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# The Review step

import { ProfileDemo } from "@/components/react/ProfileDemo";
import { trimixDeco } from "@/demo/plans";

The **Review** step is the plan as the planner computed it. The step rail will
not advance to it until the plan describes a dive that can be computed. While
the plan is worked out a banner reads *Computing dive plan*;
if no schedule could be produced, a red banner names the reason and offers to
run it again.

## The five views

| View | Answers |
|---|---|
| **Overview**, below | What shape is this dive, and what does it come to? |
| [Schedule](/planning/review-schedule) | What do I actually do, minute by minute? |
| [Gas Consumption](/planning/review-gas) | Do I have enough gas, and where does it run out? |
| [Tissue Saturation](/planning/review-tissues) | Which compartment is driving the ascent? |
| [Hybrid Analysis or GF Calibration](/planning/review-models) | What did the second model say? |

The first four are always there. The fifth appears only under the algorithms
that produce a second model's output, and its label changes with the algorithm.

## Overview

The dive drawn as a chart, with a strip of readouts beneath it. A legend names
the two traces, **Depth** and **Deco Ceiling**, and a control at the end of it
opens the chart full-screen.

The ceiling trace is the shallowest depth the model would permit at that moment:
where it meets the depth trace you are at a stop, and where the gap is wide you
are free to ascend. The depth trace is coloured by the gas being breathed.

Six readouts sit below the chart, in this order:

- **Max Depth**: metres, to one decimal.
- **Runtime**: whole minutes, surface to surface.
- **TTS**: time to surface, in whole minutes, from the end of the bottom to the
  surface with decompression included.
- **First Stop**: metres. Present only on a dive that has one.
- **O₂ CNS**: a percentage with a fill bar, amber at 80 % and red at 100 %.
- **OTU**: unitless, the cumulative pulmonary oxygen dose.

## On a rebreather

A closed-circuit plan adds a rail of **bailout scenarios** above the view, on
every view except the models one. Each row is one open-circuit ascent from one
point in the dive on one subset of your bailout gases; the first is the **Loop**,
the dive you intend to make. Selecting one recomputes every view for that
scenario, and the ceiling trace gives way to the scenarios drawn over the loop
profile as dashed lines. See [Bailout scenarios](/ccr/bailout).

## Next

[The schedule view](/planning/review-schedule) takes the same dive as a stop
list. [Reference: outputs](/reference/outputs) has every figure the planner
reports.

Source: https://docs.divelogic.ai/planning/reviewing/index.mdx