In Melbourne, Australia, current debates regarding the ongoing provision of suburban residential development to meet housing demand tend to focus on its capacity to contribute to the overall achievement of sustainable development at the metropolitan scale. Within this context, sustainability issues are framed as an environmental problem, and the legislative proposals to address them, in general, are technology focused. However there is growing evidence that deeper changes in human behaviour and understanding are required to achieve a sustainable outcome at the residential scale, and that these 'sustainability issues' are in fact environmental symptoms of a wider human problem. This thesis presents the results of an investigation of domestic architecture, as experienced by thirteen people, eleven of whom have voluntarily chosen to design, build and live in sustainable houses in and around Melbourne. The respondents' complex, multidimensional lived experiences of house, home, place and sustainability are explored within a framework based on theories of place. The first of these theories is Heidegger's concept of Being, especially Being-in-the-World, and the way in which this relates to the human experience of place. The second is the related concept of Dwelling, which for Heidegger is the basic character of Being and is intimately connected with building. The third perspective draws heavily from Heidegger's concepts of Being and Dwelling to define place as the experience of rootedness, authenticity, and insidedness, and the absence of these as placelessness. The fourth theory is the genius loci of place, also referred to as the spirit of place. Dwelling is the point of departure for this theory which discusses the way in which architecture concretises the spirit of place, so place may be experienced as an integrated totality. The final theory, articulated by Bachelard, suggests that place, as memory, is the conflation of intimate experience, memory, and imagination. This perspective is explored through the experience of home, especially the memories of home. Using phenomenography as a research approach, the qualitatively different ways the respondents describe their understanding and experience of house, home, place and sustainability, and the relationships between these, are explored. Insight into these understandings and experiences is achieved through the use of unstructured, in-depth interviews and a purposefully designed mixed-media package (cultural probe) which aims to provoke inspirational, creative and emotional responses. Conclusions are drawn regarding the interplay of notions of house, home and place and sustainability, and the ways in which the relationships between these phenomena influence sustainable behaviour.

Focusing on the needs of users, design can leverage new product development process by offering insightful knowledge of those needs. This research investigates the technology development of smart homes. Design is utilised as a product research tool to identify key insights of the home life of the older adults living in the UK, and for the purpose of informing the front-end of the new product development process. The review of the literature in the field of smart homes suggests that the developments have lagged by a technology-push approach, the lack of appropriate concepts from users’ perspectives as well as the lack of development strategy, which has consequently been reflected in consumers’ reluctance towards smart homes. As a result, this doctoral research aimed to ‘develop a user-oriented product design research tool that improves the understanding of the home life of older adults.’ To achieve the aim, this research employs qualitative methodology to develop a research process that utilises the cultural probe, semi-structured interview and video tour. Informed by ethnographic tradition, this research establishes its trustworthiness and credibility by employing a thorough process of analysis (qualitative analysis with computer-assisted software NVivo 8 and peers debriefing) and evaluation (creative workshop and evaluative interview) with practitioners from the field of product design, design management and design education. The result of the field investigation is presented as ten personas and taxonomy of nodes, which form the contribution of this research, a sensitising tool and process. This research contributes a sensitising tool - a design-led, user-inspired and participatory product design research that the offers insightful knowledge of those older adults and their relationships with their homes living in the UK. This sensitising tool is developed for the smart home designers for the purpose of generating new product ideas and challenges designers’ preconception of users and smart homes, and provokes reflections on the practices of user-centred and user-participatory design, as examined in the creative workshop. In addition, this research also contributes to the growing debate surrounding the issues relating to ethnographic user research and the use of cultural probe for the design of new smart homes.

How might we encourage playful yet provocative attitudes to explore unfamiliar methods? This thesis investigates how interaction designers can use unusual and thought-provoking methods in their design process. It focuses on understanding the challenges, limitations and opportunities of these types of approaches. The thesis explores the use of an abusive game probe as a way to spark conversations between participants and designers. The abusive game probe has the potential to generate meaningful and insightful outcomes. The proposed abusive game probe provided difficulties, being a unique and untested method. The topic of abuse presents challenges such as ethical consideration, which still requires further research. While determining its effectiveness can be complex, the main purpose is to encourage designers to embrace unexpected and unknown elements. This thesis provides guidance for future designers to incorporate these methods into their research, continue on this project or venture out and create new and alternate methods as contributions to the field of interaction design.

In the current climate crisis, creating a symbiotic collaboration between all members of an ecosystem has become a prominent topic. By reevaluating human-centered methodologies through a cultural probe and an orienting activity, I address notions of collaboration, cohabitation and extending one’s body beyond the skin. I explore the concept of care in human-plant relationships, along with understanding the trouble with designing for and with care in the context of human-nature-technology kinship. The cultural probe, through its ambiguity, has prompted reflections on care and multispecies kinship, whereas the orienting activity has been an attempt to potentially shift to a non-anthropocentric perspective. A materialization of speculative thinking, these activities are a first step in challenging human exceptionalism, a new approach to viewing the human as decentered in design. This paper positions care as a premise in addressing human-centered methodologies to include non-human actors, with prototypes and speculative design as techniques that facilitate approaching a challenging and complex topic as one of more-than-human assemblages. / I den nuvarande klimatkrisen har skapandet av symbiotiska sammarbeten mellan alla deltagare av ett ekosystem blivit ett viktigt ämne. Genom att omvärdera människocentrerade metodiker genom en cultural probe och en orienterande aktivitet adresserar jag idéer om sammarbete, samlevnad och förlängningen av ens kropp bortom huden. Jag utforskar konceptet handomtagande i människo-plant-relationer tillsammans med förståelsen för mödorna med att designa för och med handomtagande i kontexten människa-natur-teknologi-släktskap. En cultural probe har genom dess tvetydighet drivit reflektioner kring handomtagande och mångfaldsläktskap, där den orienterade aktiviteten var ett försök till ett potentiellt shifte till ett icke-antropocentriskt perspektiv. Dessa aktiviteter, som är material från spekulativt tänkade, är ett tillvägagångasätt och första steg i att utmana människocenterad exceptionalism i design. Denna artikel positionerar handomtagande som en premiss i adresserandet av människocentrerade metodiker till att inkludera icke-mänskliga aktörer genom användandet av prototyper och spekulativ design som underlättande tekniker till utmaningar och komplexa ämnen som mer-än-mänskliga församlingar.