How can I enforce the workflow I've designed?

Project Tracker allows you to set transition rules that allow user to select some attribute options and not others depending on the existing values of the attributes. Your workflow consists of these rules, taken together.

You can set transition rules to be applied when the attribute is first given a value or when its value is changed. These rules can be applied to specific roles. You can also set rules to require that other attributes in the artifact have defined values.

Setting transition rules based on the users' roles allows you to define which users are able to enter or change artifacts with certain options. For example, if you want to ensure that only artifacts that have been reviewed by a project owner can be escalated to P1 in priority, you could hide the P1 option for the Priority attribute for all roles except Project owner.

Setting transition rules that require other attributes to have values before an option becomes visible allows you to ensure that any processes you have defined are followed in your project. For example, if your processes require that artifacts must be given a priority before they can be assigned to a milestone, you can set the transition rules so that the priority attribute must be defined before the options for the Milestone attribute become visible.

Once the transitions are defined, when an artifact of this artifact type is created or edited the specified transition rule gets applied. The settings are validated at the time of submitting or saving the artifact. The artifact cannot be saved if the specified attribute option transition settings are not executed.