The aim EXACT@Home is to create an evidence-based health program using e.g. questionnaires, a digital health platform and multiple digital devices to further improve the assessment of patients diagnosed with severe asthma. By better charting treatable traits (e.g. poor adherence, physical inactivity, dysfunctional breathing), we expect to improve the indication for the use of biologics. One the devices that will be used is also a medicinal product: a digital inhaler, which monitors adherence and inhaler technique through its connected application and aims to improve adherence and inhaler technique with reminders and notifications. Next to this an activity tracker, hand-held spirometer and FeNO measuring device will be used. The information of the devices will be collected in a Personal Digital Healthcare Environment (PDHE). Patients diagnosed with severe asthma according to the regional asthma Multi-Disciplinary Team Meeting (MDTM) eligible for a treatment with biologics will be included. Half of the patients will immediately receive a biologic. The other half will first undergo the systematic assessment including home monitoring (=EXACT@home) and afterwards a treatment will be chosen based on this evaluation: optimization of treatable traits when present and/or biologics. The chosen treatment of both, the intervention and control group, will be evaluated during 11-12 months.