---
title: "Change Control: Oveview"
url: "https://help.nodeslinks.com/en/article/change-control-oveview-copy"
language: "en"
last_updated: "2026-09-09T11:28:53.647Z"
---

# Change Control: Oveview

## **High‑Level Insights**

When you open the Change Control Overview page, you're greeted with a clean, summary screen that compares your current schedule against a selected comparison schedule:

-   **Key KPIs** — completion date shift, progress, performance index, critical-path activity count, and float — are displayed up front, each showing the net change between the two schedules
-   **Choose your comparison schedule** via the *Comparing* dropdown at the top of the page (e.g., comparing against the *2nd upload*).
-   **Jump into detail** using the *View* / *View Critical Path* / *View All* links on each section
-   **Drill into a category** that interests you by clicking on its bar in the *Changed Activities* graph at the bottom! 

![](https://cdn-assets.productfruits.com/2a09515d-b37d-4e52-8753-2c2b58963ecc)

* * *

### Project Overview

-   **Completion Date** – The current end date of the schedule compared to the comparison schedule, with the net difference highlighted (e.g., +2m 25d).
-   **Progress** – How much of the schedule has been completed relative to the comparison schedule (e.g., 53% vs 70%).
-   **Performance Index** – Schedule performance compared to the comparison schedule. Values above 1 indicate the schedule is ahead; below 1 indicates it is behind.

### Critical Path

-   **Number of Activities** – Total activities included in the critical path, with the change shown (e.g., +61).
-   **Float** – The amount of scheduling buffer remaining; lower float means less flexibility. The change is shown directly (e.g., −85). A decrease in float indicates the schedule has become more compressed (less buffer between activities), while an increase suggests more scheduling flexibility.

### Changed Activities

A bar graph breaking down the volume of changes by category between the two schedules. Click any bar to drill into that category:

-   **Added** – Activities added to the schedule
-   **Removed** – Activities removed from the schedule
-   **Dates** – Activities with changed dates
-   **Duration** – Activities with changed durations
-   **Relationships** – Changed relationships / logic links
-   **Calendars** – Calendar changes
-   **Constraints** – Constraint changes
-   **Corruption** – Corrupted or anomalous activities detected