Skip to main content

Gantt and schedule

Company+

Project schedules in a Gantt chart: dependencies, critical path, baseline, slippage tracking and an AI-generated schedule proposal from project documents.

Available for:AdministratorUser

You will find Gantt in the menu under Planning → Gantt. It shows events from the Calendar, only as bars on a timeline grouped by project. Every change in Gantt is immediately reflected in the Calendar, in the mobile app and in Utilization, and vice versa.

Gantt is visible to everyone who has access to Calendar in their Role. Only someone whose Role allows editing Calendar can make changes (move, create, generate). A user who is not an administrator sees the same events as in the web Calendar: the whole company's plan if their Role allows it with the Vidí plán celé firmy (Sees the whole company's plan) switch, otherwise the events they created, those assigned to them and the plans of the projects they manage.

Choosing a project and period​

  • Next to the heading you choose a project. The list is divided into Běžící stavby (Running projects), V přípravě (In preparation) and Dokončené (Completed). The Všechny stavby (All projects) option shows the bars of all projects one below another in cards, the Bez stavby (No project) option shows events without a project.
  • If the selected project has no dates, the app offers Doplnit termíny stavby (Fill in project dates) (Termín zahájení (Start date), Termín dokončení (Completion date)). The dates are saved to the project, so only someone who may edit the project can save them. The dates are drawn in Gantt as milestones and determine the range of the chart. With the Přeskočit (Skip) button you select the project even without them.
  • Timeline scale: Den (Day), Týden (Week), Měsíc (Month) (depending on the length of the period) and Výhled 2 týdny (2-week lookahead) / Výhled 4 týdny (4-week lookahead) for day-to-day management of the coming weeks.
  • Use the magnifier buttons to zoom the timeline in or out. In the day scale, weekends and public holidays are shaded.
  • The # dní (# days) column shows the duration of the activity, the SO column the construction object (project category), if the activity has one.

Bar colors: by construction object, or by event type. Completed activities are green, overdue activities red, projects with an estimated end date orange; a red outline marks the critical path.

Editing in the chart​

With edit permission you can, directly in the chart:

  • click a bar to open the event detail (the same form as in the Calendar),
  • drag a bar to move an activity, and drag its edge to change the length of a multi-day activity,
  • drag the mouse across an empty area to select several bars with a rectangle - moving one then moves the whole selection,
  • use the tick to the left of a bar to mark an activity as done (100 %) or to cancel its completion,
  • undo the last change with the Zpět (Undo) / Vpřed (Redo) arrows (the history lasts until you leave the page).

The Akce (Actions) menu contains Přidat událost (Add event), Stáhnout PDF (Download PDF) and, when one project is selected, also Přidat milník (Add milestone) (a name and a date, e.g. final inspection or handover of a section; it is drawn in the chart as a diamond) and Generovat harmonogram (AI) (Generate schedule (AI)).

The names of the assigned people are written directly into the bar if they fit in full.

Dependencies​

A dependency means that an activity may start only after another activity of the same project has finished, optionally with a lag in days (e.g. a technological break after concreting).

You can create a dependency in two ways:

  • in Gantt, by dragging from the circle at the end of a bar to another activity - in the Nová návaznost (New dependency) dialog you fill in the Prodleva (Lag),
  • in the event detail, by ticking Návaznost (Gantt) (Dependency (Gantt)) - you choose which event of the same project the activity follows, and the lag.

If, in the event detail, you choose an activity that already has something following it, the app asks whether to Vřadit mezi ně (Insert between them) the new activity, or Přidat vedle (Add alongside) it as a parallel branch. When dragging in Gantt and the activity already follows something, the new predecessor is inserted into the chain between them.

Dependencies are drawn as arrows. When you hover over an arrow, a red cross appears for deleting it. An activity following a milestone (including the project start date) may start on the same day.

If you move an activity so that it would violate a dependency, the app offers solutions: align the start after the predecessor, move the predecessor, move the whole chain of following activities, or save it even with the violation. The project start and end dates never move during these shifts.

Critical path, slippage and warnings​

  • Kritická cesta (Critical path) - the button highlights the activities whose delay would push back the end of the project. The Kritická cesta a rezervy (Critical path and float) table appears below the chart with the float of each activity.
  • Po termínu - nedokončené (Overdue - not completed) - activities that have ended and are not done, or multi-day activities whose completion lags behind the elapsed time. You can bring them up to date right away with the Dokončit (Complete) button or by entering a percentage. For projects with an estimated end date, slippage against that date is not reported.
  • Varování (Warnings) - violated dependencies and activities that start before the project start date or end after the project end date.
  • Vytíženost (Utilization) - people and machines from the displayed period. Days with work are blue, overlapping events red (counted across all company projects; technical staff are not counted in overlaps). A more detailed overview is on the Utilization page.

When you mark the Termín ukončení (Project end) milestone as done, the app asks Dokončit i stavbu? (Complete the project too?) and you can switch the project straight to the Completed phase, if you are allowed to edit the project.

Project work​

When one project that already has at least one activity is selected, there is a Práce stavby (Project work) section below the chart (for those who may edit the plan) - a table of activities with the columns Činnost (Activity), Prodleva, Navazuje na (Follows), Termín od-do (Date from-to), Osoby / týmy (People / teams) and Stroje (Machines). It is handy for bulk edits without dragging with the mouse:

  • the Přidat činnost (Add activity) button creates a new one,
  • for an activity you can edit its name, dates, predecessor, lag, people, teams, machines and their operators,
  • the activity detail additionally has a Popis (Description) (saved as the event note),
  • an activity can be removed together with its dependencies.

Construction objects​

If activities have a project category filled in, Gantt treats it as a construction object (SO). The Dle objektů (By object) button groups activities under the headings of the individual objects; the legend above the chart shows the color of each object.

Baseline​

A baseline is a frozen state of the dates against which slippage is tracked. It works for a single project:

  1. Once the schedule is agreed, click Směrný plán (Baseline) and then Uložit verzi (Save version).
  2. The current dates of all activities are saved as a new version. Older versions are kept, so slippage can also be documented retrospectively.
  3. With Směrný plán turned on, the saved dates are drawn in grey under the current bars, and above the chart there is a summary: how many activities have moved and what the largest slippage is.
  4. If the project has several versions, you switch between them in the selector next to the button.

AI schedule proposal​

From the project documents (design documentation, bill of quantities), AI can propose a complete schedule including dependencies, durations and machines. You then adjust the proposal in Gantt and save it to the plan.

Turning it on and pricing

The feature is off by default. An administrator turns it on in Nastavení firmy → AI služby (Company settings → AI services) with the Generátor harmonogramů (AI) (Schedule generator (AI)) switch, or directly in Gantt in the Zapnout AI generátor harmonogramů? (Turn on the AI schedule generator?) dialog. The first generation is free; further use is charged according to the AI services price list (the Zobrazit ceník (Show price list) link is in the dialog).

  1. In Gantt, select one project and choose Generovat harmonogram (AI) in Akce.
  2. Check the Termín zahájení and Termín dokončení - the schedule will be fitted between them. The change is saved to the project, so only someone who may edit the project can change the dates.
  3. If the project already has some activities in the plan, choose what to do with them: Smazat a nahradit (Delete and replace), Inspirovat se a nahradit (Use as inspiration and replace) (AI starts from them but creates a new schedule), or Nechat být (Leave as is). With the editace vlastních (edit own) level, replacing deletes only the events you created yourself; your colleagues' activities stay.
  4. Select the source documents from the project's documents, or upload more (PDF, XLSX, ZIP, images, also by dragging). Click Vytvořit seznam prací (Create work list) - AI usually reads the documents for 2-4 minutes.
  5. In the Dotazy (Questions) step, you can answer AI's follow-up questions and add a missing document. Click Navrhnout harmonogram (Propose schedule).
  6. The proposal is shown directly in the chart and below it in the Práce návrhu (Proposed work) list. Adjust it by dragging, renaming, with arrows or in the list.
  7. The Uložit (Save) button at the top right creates the proposal in the plan; the Zahodit návrh (Discard proposal) button cancels it.

An unfinished proposal is saved continuously in your browser, so you can come back to it later.

Chat with the AI planner​

The Chat button (for those who may edit the plan, when one project is selected) opens a conversation with the AI planner next to the chart - both for a proposal and for an already saved schedule. You can ask about anything in the documentation or the schedule ("why is there a lag here?") and request changes ("shorten the shell construction by 2 weeks", "add scaffolding acceptance after the assembly"). Before the first question, the planner goes through the project documents (usually 1-3 minutes). Each question is charged according to the AI services price list.

Printing and PDF​

Akce → Stáhnout PDF creates a PDF of the chart including the dependency arrows and the company footer. You can also print the page from your browser; it prints in landscape.

Gantt and Calendar are one and the same

You don't have to decide where to plan. Build the rough schedule in Gantt, and do the daily allocation of people in the Calendar or on the Planning board - they are all the same events.