With the demographic change, the percentage of older adults increases while information and communication technology (ICT) becomes ubiquitous and often indispensable. However, many older adults using ICT encounter usability problems, particularly if the ICT was not designed with them in mind. If older adults are considered, their participation is often limited to the evaluation of a finished product. Our approach called “human-centered design for aging” (HCD+), considers older adults’ requirements and abilities throughout the development process, adapting established HCD-methods to accommodate the participation of older adults as experts for their own age group. This approach has been tested in a research project aiming to link older adults' life stories to historical events and appreciating their life experience. By conducting interviews, focus groups, workshops and evaluations with older adults, meta-guidelines were identified and integrated into the HCD+ approach. Following this approach, older adults can be better served by ICT, fostering their participation in society.