Which process aims to analyze both horizontal and vertical requirements for a project solution?

The process that aims to analyze both horizontal and vertical requirements for a project solution is architectural programming. This process involves defining the needs and goals of a project by considering various factors that affect the building's design and functionality. It encompasses a comprehensive analysis of spatial requirements, relationships between different areas, user needs, and project constraints, whether they are related to layout (horizontal) or building height and stacking (vertical).

Architectural programming serves as a crucial step in the design phase, allowing architects and designers to distill information into a coherent framework that guides the overall design process. By systematically addressing the requirements of the project, it ensures that the resulting architectural solutions are well-informed, effective, and conducive to the users' needs.

Other processes, such as architectural research and site utilization studies, may provide valuable information or insights but do not focus comprehensively on both the horizontal and vertical aspects of project requirements in the same way architectural programming does. Forensic investigation, on the other hand, typically deals with analyzing existing buildings or failures rather than setting out requirements for new projects. Therefore, architectural programming is the most appropriate answer in this context.