What tips or techniques should you keep in mind when shooting photographs on a rainy day?

Simple: Keep your camera protected from the rain

Here are some tips for photographing during rainy day: 1) Use image stabilization or tripod.
2) Choose a larger aperture.
3) Change the object on which you focus.
4) Have a well-defined center of interest.
5) Review all images.
6) Use exposure compensation.

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability