Project management · Practical guide

Task Dependencies: Blockers, Sequence and Ownership

By My First Task editorial team

Updated

The short answer

A task dependency records that one piece of work relies on another task, decision or input. It makes sequencing explicit so people can see what can start, what is blocked and who can resolve the prerequisite.

How to approach the work

Not every related task is a dependency. Two activities can belong to the same project but proceed independently. Record a dependency when starting or finishing truly relies on another event. A review, access request or external approval may be the prerequisite. Keep the description and owner clear, check for circular chains, and review dependencies when scope changes. A task link does not by itself establish a complete critical-path schedule.

A practical sequence

  1. List the input or event needed before the task can proceed.
  2. Identify the prerequisite's owner and expected decision date.
  3. Record the dependency on the task rather than only in a chat.
  4. Check whether any tasks can proceed independently.
  5. Look for circular dependencies and clarify the actual sequence.
  6. Revisit blocked items during planning and escalation.

Illustrative scenario · not customer research

Worked example

The team can write account-help content while a login change is developed, but cannot validate the final login error text until the error behavior is agreed. Design approval is a prerequisite for that review, not for every task in the project. If the approval is late, the owner can see which deliverable is affected and choose a specific escalation rather than marking the entire project blocked.

Common mistakes to avoid

  • Linking every task to every other task.
  • Recording a blocker without an owner or next decision.
  • Assuming all dependencies are development tasks.

Try the method with your own inputs

Questions answered

What is a circular dependency?
It occurs when tasks depend on one another in a loop, so none has a valid starting point. Review the assumptions and split or resequence the work.
Does a dependency always prevent starting?
No. The relevant relationship may concern starting or finishing. State the event that is required instead of treating every link as a start blocker.
Does task linking calculate a critical path?
Not necessarily. A critical-path schedule needs durations and modeled dependency relationships. Check the current product before assuming automated scheduling.

Apply it in a shared workspace

Keep the agreed owner, completion criteria and important decisions with the work. Explore the relevant My First Task feature.

Research context is available in our source library. The worked example above is an editorial illustration.

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Turn the plan into shared work

Give each next action an owner, a completion condition and a realistic date. My First Task brings tasks, boards, project workflows and issue tracking into one workspace.