Most health technologies to support lifestyle changes after bariatric (weight-loss) surgery are aimed at the individual patient. However, lifestyle changes cannot be done in isolation, but are a co-responsibility between patient, Health Care Professionals (HCPs), and the social context; most dominantly the partner. We want to investigate the potential value of an intelligent ecosystem that is designed for this co-responsibility. We present a clinical trial following an explorative data-enabled approach. We deploy an ecosystem consisting of data trackers and personalized coaching interventions with six patients and their partners. Based on various use cases, we identify six ways in which designing for co-responsibility can bring value: by (1) identifying the right intervention, (2) assessing the effectiveness of the intervention, (3) allowing patients to seek support when needed, (4) awareness of co-responsibilities within the couple (5) helping the partner in understanding how to be of help, and (6) preventative care.

This paper presents a design case study from industry that explores designing for personal health ecosystems. Following on from previous work on ecologies that gives a predominantly theoretical perspective, we present a more applied and design-oriented perspective. To do so, we build on our previously-developed data-enabled design approach, which utilizes contextual, behavioral and experiential data from situated design experiments as creative material. This approach comprises two steps, of which this paper presents the first (contextual) step. We introduced a small adaptable ecosystem of multiple artifacts, in four family homes over a period of eight weeks, through which we explored and further expanded on valuable ecosystem relationships. The insights gained were translated into three design opportunities that inform a future second step. We highlight and discuss practical examples from our situated explorations, and discuss how our data-enabled design approach served in designing for the complexity and versatility inherent to these ecosystems.

This paper presents a designerly exploration of the potential values of parent-tracked baby data in interactions between parents and healthcare professionals (HCPs). Where previous work has used parent-tracked data as part of the solution to a problem, we contribute by starting our design exploration from data, using it as creative material in our design process. As we intend to work towards a system that could be viable across different levels of care, we invited three different types of HCPs and five families with newborns, for a five-week situated design exploration. Facilitated by an open and dynamic data collection toolkit, parents and HCPs could together decide what data to collect. In a continuous dialogue, they reflected on the relevance of that data in their interaction. Based on this, we continuously and remotely developed two concepts.

In this paper, we discuss how the implementation of design-inclusive User Experience Research (UXR) has influenced the composition of UXR and design activities in the industrial setting of Philips Design. We present three design case studies that were executed in a time span of three years: a baby sleep project; a pregnancy project; and a baby bottle-feeding project. Through a retrospective analysis we conclude that the approach adopted in these cases progressed from complete separation of UXR and design activities to design-inclusive UXR in which design forms an integral part of research. This is reflected by a rearrangement of project activities to identify, envision, enable and evaluate user experiences. Previously the UXR (identify and evaluate) and design (envision and enable) activities were executed sequentially. Now, these four project activities merge in studying design interventions in context over a prolonged time, to iteratively explore and advance UX design qualities.

This paper presents the design case study of a connected baby bottle, which is used as an exploration towards a data-enabled design framework for designing intelligent products, services and ecosystems targeting behavior change. We explore how contextual, behavioral and experiential data can be used as design material for remote insight collection and remote design intervention. The first "contextual" iteration sets out to understand the design context with its complexities, based on a combination of quantitative sensor data and qualitative interview sessions. The second "informed" iteration utilizes design probes, remotely connected to a data-canvas, to explore behavioral, experiential and contextual consequences of design interventions. The dynamic and open character of the introduced data-canvas allowed us to iterate quickly without requiring physical presence of the designer. Finally, we translate the findings from this case study into a two step model for data-enabled design that we further discuss to outline what next steps are required towards constructing a framework for data enabled design.

Perceptual crossing is the reciprocal interplay of perceiving while being perceived. In this paper we discuss the last iteration of our ongoing research project on designing for perceptive qualities in systems of interactive products. We describe the design of explorative behavior in an artifact to enable the artifact and a person to engage in perceptual crossing. The explorative behavior is compared to the following and active behavior, the results of two earlier iterations. Through the iterations we formulated, applied and evaluated design relevant knowledge in the form of seven design notions. These notions inform design-researchers and design-practitioners on how to design for perceptive qualities in systems of interactive products. Here we specifically focus on how the artifact detects active perceptive behavior of a person, and how the artifact becomes aware of bygone perception and anticipates on future perception. An experiment shows how participants preferred the resulting explorative behavior that is closest to our theoretical framework based on phenomenology.

In this paper we describe seven showcases, namely 'BeTouched', 'Dawe & Valle', 'Wonderturf', 'IN2WACO', 'Blow!', 'ShyLight' and 'PeR', that give relevant insights on how to design for perceptive qualities in artifacts. Designing these perceptive qualities hypothetically enables a person to engage in a reciprocal perceptive interplay with the artifact: perceptual crossing between person and artifact can happen. This paper is part of an ongoing research in which we designed, built and evaluated several artifacts with perceptive qualities and in which we discovered a set of design notions. The theoretical model and the design notions involved in this research-project are introduced. The showcases illustrate and give value insights on the application of the theoretical model and the design notions.

In this paper we describe our research on how to design for perceptive activity in artifacts in order for perceptual crossing between subject and artifact to happen. We base our research on the phenomenology of perception [19] and on ecological psychology [10]. Perceptual crossing is believed to be essential to share perception and thereby to feel involved in the situation [5,15]. We propose a theoretical model in which perceptive connections between user, artifact and event are presented. We designed an artifact to function as physical hypotheses [9] and show the design relevance of the model. In an experiment we investigate how the user's feeling of involvement is influenced in relation to differentiations of the proposed theoretical model. The results of our experiment show that indeed perceptual crossing between user and artifact influences the user's feeling of involvement with the artifact in their common space. We conclude with describing several design notions important for designing for perceptive activity in artifacts.