Building on existing research and experiences regarding the use of supportive and assistive technology -- called welfare technology -- in elderly care, we have developed a framework to represent a holistic view of the complex tangle of factors contributing to the sustainable integration of these technologies into the elder care context. The framework is described here for the purpose of initiating a conversation regarding the framework with interested researchers. We will also conduct discussions with managers, caregivers, and other stakeholders involved in welfare technology deployment in eldercare in Sweden to obtain their feedback on the framework. Our ultimate goal with the framework is to provide general guidelines that municipalities and care organizations can use to improve the quality of life for elderly citizens through the successful selection, rollout and use of welfare technology that meets the needs not only of the elderly citizens needing support but also of the care providers and organizations.