Table 1.

General content of Action Sheets.

No.	Category name	Content/meaning
1	Title	Designation of connected PEPA features or characteristics
2	Connected requirements	Most important aspects/user demands
3	Definition	Short description of the purpose of the Action Sheet and its importance for the PEPA concept
4	Sketches (if applicable)	Images of design proposals for PEPA features if applicable
5	User Story	Short and precise summary of user demands addressing the questions “Who wants what?” and “What is the aim?”
6	Preconditions	Prerequisites that must be met in order to make the user story come true
7	Relevance	Facts added to the explanatory statement briefly mentioned within the user story
8	Risks	Factors that might endanger a successful realization of the Action Sheet
9	Open issues	Uncertainties or contradictions that must be clarified for a successful practical application
10	Next steps	Activities that must be carried out for successful realization of the respective requirement
11	Acceptance criteria	Ways to test if the user story can be declared as fulfilled
12	Dependencies	Direct relations between different working papers
13	Complementary documents	Other possible references
14	Attachments	Other supplementary material