> ## Documentation Index
> Fetch the complete documentation index at: https://learn.nextedy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

> Nextedy GANTT is a general-purpose project scheduling product for Siemens Polarion ALM. It is highly configurable and supports waterfall, agile, hybrid, and scaled agile methodologies.

export const LastReviewed = ({date}) => {
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    year: "numeric",
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    timeZone: "UTC"
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  return <p className="mt-10 text-sm text-gray-400 dark:text-zinc-500 not-prose">
      Last reviewed on {formatted}
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};

## Product Fundamentals

* [**Product Overview**](/gantt/concepts/overview) -- What Gantt is, who uses it, and how it connects to Polarion ALM.
* [**Work Items Gantt vs Plans Gantt**](/gantt/concepts/work-items-vs-plans-gantt) -- The two scheduling modes: one for individual work items, another for Polarion Plans as scheduling containers.
* [**Architecture and Data Flow**](/gantt/concepts/architecture) -- How data flows between the Polarion server and the browser: loading, rendering, and persistence.

## Scheduling and Dependencies

* [**Auto-Scheduling and Dependency Propagation**](/gantt/concepts/auto-scheduling) -- How dependency links drive automatic date recalculation when tasks move.
* [**Critical Path Analysis**](/gantt/concepts/critical-path) -- Identifying the longest chain of dependent tasks that determines the earliest project completion date.
* [**Date Range Conflict Detection and Resolution**](/gantt/concepts/date-conflict-detection) -- How the Gantt detects and resolves parent-child date range violations.
* [**Data Mapping and Field Resolution**](/gantt/concepts/data-mapping) -- How Polarion work item fields map to Gantt scheduling properties like start date, end date, and duration.

## Resources and Capacity

* [**Resource Load Calculation Modes**](/gantt/concepts/resource-load-modes) -- The four methods for computing resource utilization: item count, time, remaining estimate, and allocation.
* [**Working Calendars and Scheduling**](/gantt/concepts/working-calendars) -- How working calendars define non-working days, per-user schedules, and calendar exceptions.
* [**Team Assignments and Cross-Team Planning**](/gantt/concepts/team-assignments) -- Managing team membership, allocation percentages, and cross-project resource visibility.
* [**Capacity Modifiers and Team Capacity**](/gantt/concepts/capacity-modifiers) -- How capacity modifier fields reduce effective availability for resource planning.

## Visualization

* [**Presentation Modes -- Task, Project, and Milestone**](/gantt/concepts/presentation-modes) -- The visual modes that control how a work item type appears on the Gantt chart.
* [**Item Color Logic -- Static, Dynamic, and Progress Colors**](/gantt/concepts/item-color-logic) -- How task bar colors are determined from progress, scripts, and work item properties.
* [**Baselines and Schedule Comparison**](/gantt/concepts/baselines) -- Comparing the current schedule against historical snapshots using dates, named baselines, or revisions.

## Configuration

* [**Configuration Layers and Precedence**](/gantt/concepts/configuration-hierarchy) -- How system-wide defaults, per-instance parameters, and user preferences interact.
* [**User Settings and Local Storage Persistence**](/gantt/concepts/user-settings-persistence) -- How the Gantt remembers personal preferences like zoom level and column widths between sessions.

<Tip>
  If you are new to Nextedy GANTT, begin with [Product Overview](/gantt/concepts/overview) to understand the product, then read [Work Items Gantt vs Plans Gantt](/gantt/concepts/work-items-vs-plans-gantt) to choose the right mode for your project.
</Tip>

<Tip>
  If you are new to Gantt, begin with [Product Overview](/gantt/concepts/overview) to understand the product, then read [Work Items Gantt vs Plans Gantt](/gantt/concepts/work-items-vs-plans-gantt) to choose the right mode for your project.
</Tip>

<LastReviewed date="2026-06-24" />