What could indicate a need for a post-installation survey?

Indications for a post-installation survey are crucial to ensuring that a wireless network operates effectively and meets the expected performance standards. The choice highlighting changes to the physical layout post-deployment is particularly significant. When the physical environment of a wireless network, such as the arrangement of walls, furniture, or the introduction of new obstacles, changes, it can affect signal propagation, coverage, and network performance.

Such modifications may lead to dead spots or areas of weak signal strength, negatively influencing user experience and network reliability. Therefore, conducting a post-installation survey after such changes allows for the assessment of the network's current state and identification of any necessary adjustments to optimize performance and ensure adequate coverage.

While the documentation of facility changes, adjustments made to customer requirements, and performance assessments prior to installation all play important roles in the management and understanding of a wireless network, they do not directly indicate a need for a post-installation survey like changes to the physical layout do. In summary, observing variations in the environment post-deployment directly signals the necessity to reassess and possibly reconfigure the network to maintain its integrity and performance.