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Basic Terms & Principles


Tasks are the monolithic blocks of concrete work pieces that form any project.
Tasks should always be less than a day's job but not smaller than a solid step required to reach the project's objective.
If you find that a Task is actually too big for one gulp, just enter the finer grained Tasks that lead up to it and make them children of the big Task, thereby turning it automatically into a Project.

A good ToDo-List shouldn't so much tell you what to DO, but rather help you remember what will have to be DONE. And DONE should only be reached through CHECKED – don't be lured into skipping lists without checking off each entry right after it has been accomplished. The list is not intended to teach you with the goal of reaching a "Look ma, no hands!" state, but it's there to safeguard you from missing the odd bit in a job you may be perfectly familiar with.


Projects are the main organizational entities you use. A Project contains all the Tasks that can be finished in a reasonable time to reach a concrete goal like a finished product, a personal behaviour change or a successfull shopping tour.

Projects can have any number of sub-projects to resemble milestones or independent building blocks of more complex, longer term projects. But don‘t nest them too deep. liquid.lists will support any depth but encourages you to not go beyond six levels.

The terms Task and Project are actually overlapping: A Project with no sub-tasks is itself a Task; a Task that is made up of other Tasks, becomes a Project. A Task is completed when it is checked; a Project is completed when all it's children (Tasks or Projects) are completed.


Categories are like areas of responsibility. Used in this way they are never "done", but they do have a Progress Bar to give you a summary of the state of the Projects they contain. An empty Category ist all green – there's nothing to do at the moment.

Categories are also used to gather Projects (or Tasks) that are not dependend on another. A Category displays the next due Task of each of its children in the TaskFlow View, whereas a normal Project will only display its bottom most open Task.

Categories are handled as an atribute to a normal Project. In the Project Details Overview screen you can switch on "use as Category" to make a Project behave as a Category. Opposed to normal Projects, a Category remains a Project when it looses all children and does not revert to Task status. (As it can not be "done", it will keep the Disclosure Triangle instead of regaining the Checking Circle.)

For example:

A shopping list that is not bound to a predetermined shopping route calls for using the Category Switch – it will then show all its items in the TaskFlow. If you want to stick to a shopping route but want to roam free within each shop, create a normal Project „Shopping Tour“ and within it create all shops in the correct order as sub-projects. Then switch every shop to „Category“ and fill it with the items (Tasks) you want to get at each location. Now the TaskFlow will show all items of the first shop and after you ticked them all off will show all items to get at the next location.


There is no such thing as a priority tag in liquid.lists, as no two Projects can both be the most important at the same time. Each Project's priority is usually determined by its position in the Active List. Higher in the Active List means higher priority.

You can override this priority by simply switching the TaskFlow View to reorder-mode and arranging the open Tasks in any order you like. All corresponding parent Projects will then keep their next due Tasks coming in at the assigned unique priority level. New Projects come in at the highest priority if they are not assigned to a Project with a lower priority.

Priorities are not assigned to Categories, only to Projects (and Tasks).


Issues are problems or missing conditions that prevent a Task or Project from being completed or otherwise require special attention. You can note any number of issues for a Task or Project. Their count will be prominently displayed in the list entry.

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