What type of design study provides a general recommended solution to a problem?

The type of design study that provides a general recommended solution to a problem is conceptual design. In this phase, the focus is on establishing the broad parameters and overall framework for resolving an identified issue, often involving brainstorming and exploring various alternatives. It sets the foundation for more detailed approaches to follow by outlining the key elements and intended outcomes without delving into intricate specifics.

In contrast, detailed design and final design phases are about refining the concepts into executable plans and technical specifications, which are more focused on implementation rather than the general solution framework. Schematic design adds more concrete features and layout graphics but still serves as a bridge between conceptual frameworks and detailed construction plans. Thus, conceptual design stands out as the most appropriate choice for developing an overarching solution model in design processes.