Which two factors are important when designing a map for external use?

When designing a map for external use, considering map extent and target audience is crucial for creating a product that is both useful and accessible to those who will be viewing it.

Map extent refers to the geographic area covered by the map. It's important to select an extent that effectively conveys the required information without overwhelming the map's message or providing unnecessary detail. A well-defined extent helps to focus the viewer's attention on the relevant data and ensures that the map serves its purpose, whether it’s for navigation, analysis, or presentation.

The target audience is another vital factor because understanding who will be using the map influences both its design and content. Different audiences have varying levels of expertise and differing needs. For instance, a scientific community may appreciate a map rich in detailed data and technical symbols, while the general public might benefit from simpler visuals and more intuitive representations. Tailoring the design to meet the preferences and expectations of the intended audience can greatly enhance the effectiveness of the map.

The other factors mentioned do not prioritize the core elements of map design for external use as effectively as map extent and target audience do. While aspects like color schemes and projection types are valuable, they fall under the broader umbrella of how to present the data, which is secondary to ensuring the content