This paper explores timelines as a web-based tool for collaboration between citizens and municipal caseworkers. The paper takes its outset in a case study of planning and control of parental leave; a process that may involve surprisingly many actors. As part of the case study, a webbased timeline, CaseLine, was designed. This design crosses the boundaries between leisure and work, in ways that are different from what is often seen in current HCI. The timeline has several roles on these boundaries: It is a shared planning and visualization tool that may be used by parents and caseworkers alone or together, it serves as a contract and a sandbox, as a record and a plan, as inspiration for planning and an authoritative road, as a common information space and a fragmented exchange. Serving all these roles does not happen smoothly, and the paper discusses the challenges of such timeline interaction in, and beyond this case.

Abstract. AdapForms is a framework for adaptive forms, consisting of a form definition language designating structure and constraints upon acceptable input, and a software architecture that continuously validates and adapts the form presented to the user. The validation is performed server-side, which enables the use of complex business logic without duplicate code. Thus, the state of the form is kept persistently at the server, and the system ensures that all submitted forms are valid and type safe.

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This paper reports on an exploratory participatory design process aimed at supporting citizen deliberation in municipal planning. It presents the main outcomes of this process in terms of selected prototypes and an approach to the use setting. We support and discuss different ways for citizens to act and reflect on proposed plans: in-situ, while physically close to the planning object, and ex-situ, when citizens are remote from this. The support of in-situ and exsitu participation allows citizens to engage in continuous reflection-in and on-action as a collaborative activity with other citizens, hereby inspiring citizens to increase their democratic engagement.

We present a way of creating an overview of administrative procedures using timelines. Our design also provides for manipulation of the information given on the timeline through interacting directly with the timeline. As an example application, a prototype supporting administrative procedures surrounding parental leave in Denmark, has been developed and evaluated.