The most successful Scrum Teams adopt the product model by organizing their Scrum Teams around products. These teams are cross-functional which means that they have all the skills that they need on the Scrum Team - which reduces dependencies and accelerates value delivery.
Technology silos exist when organizes organize their Scrum Teams according to the skills of the team members rather than around the skills that are needed to deliver the product. For example, organizations may have a separate user interface team which consists of designers, and a separate back-end development team. These create additional steps to delivery because a team focused solely on a specific technology such as API development can’t release a working feature on its own. It must coordinate with the UI team, which must coordinate with QA, which must coordinate with release management… and so on. Each coordination point is a cause for delay and a chance for misalignment.
Schedule a product definition workshop for your organizations to help your team focus on value delivery.