We are used to create multiple *sub-tasks* for each *user story* and provide each *sub-task* with an **estimate** in hours and assignee (**back** or **front-end**).

With the following outcome:

* Total **estimated** time needed in hours for *user story* divided over **back** and **front-end**
* The availability of both **back** and **front-end** developers can be taken into account when user stories are placed in sprints
* Developers are scheduled accordingly in [Harvest Forecast](https://www.getharvest.com/forecast/harvest-and-forecast) based on their availability and **back** or **front-end** role

Despite, we are unable to provide an accurate estimated time. That is why we want to adjust our project management:

* [**Estimate** *user stories* based on story points instead of hours](https://www.mountaingoatsoftware.com/blog/the-main-benefit-of-story-points)
* [**Estimate** no more *sub-tasks*, only the *user story*](https://youtu.be/sCCUEtjCpCs?t=1m26s)
* Switch to Trello or Jira instead of Redmine
* Planning to do more Scrum activities
	+ Daily stand-up
	+ Sprint review
	+ **Estimate** story points for *user stories* with entire team

When we apply all this, we will most probably achieve a more accurate total **estimate** for a sprint and plan a feasible amount of work in a sprint based on the velocity.

We only have one problem. If we no longer use *sub-tasks* for the **estimation**, we also do not know how many hours a **back** or **front-end** developer needs to be scheduled in [Harvest Forecast](https://www.getharvest.com/forecast/harvest-and-forecast).

Hence the question: how to schedule **back** and **front-end** developers based on story points?

Related:

* [Why use story points instead of hours for estimating?](https://pm.stackexchange.com/questions/2765/why-use-story-points-instead-of-hours-for-estimating)
* [Why use both story points and hours?](https://pm.stackexchange.com/questions/15516/why-use-both-story-points-and-hours)
* [Best measurable units for non cross-functional team estimation](https://pm.stackexchange.com/questions/17600/best-measurable-units-for-non-cross-functional-team-estimation)
* [How to estimate accurate velocity when team members are on leave](https://pm.stackexchange.com/questions/8819/how-to-estimate-accurate-velocity-when-team-members-are-on-leave/17262#17262)