Ease of use
Format & presentation
Look and feel
Size and dimensions
Design QualityDesign quality is the value of a design such as a product design to users. For example, a volume dial on a speaker that moves with a pleasing level of resistance without being too stiff or loose feeling.
Build QualityBuild quality is the overall workmanship and materials quality of an item. For example, a speaker with a fine satin finish that is free of defects, color issues or smells.
ReliabilityEnduring and consistent performance in real world conditions. For example, a drum designed to maintain its sound for at least 150,000 strikes.
ConsistencyThe requirement that units be the same or that units be internally consistent. For example, apples that are mostly the same size with similar appearance and taste.
AvailabilityThe availability of a service. For example, a requirement for a software service to be up 99.99% of the time.
UsabilityRequirements related to ease of use such as a can of coffee that is easy for everyone to open and reseal.
Customer ExperienceRequirements that make a product or service more pleasing to customers. For example, the requirement that coffee smell good when you first open the can.
Look & FeelThe look and feel of products and services such as the aesthetics of a mobile device.
EnvironmentsThe quality of environments such as the interior design of a hotel lobby.
Customer ServiceCustomer service requirements such as the practice of greeting guests of a hotel by all staff in common areas such as hallways.
PerformancePerformance requirements such as the responsiveness and speed of a user interface.
MaintainabilityRequirements that things be easy to maintain and fix. For example, a mobile device with elements that can be swapped in and out by users to upgrade or replace things.
Materials & IngredientsSpecifications of material and ingredient quality such as the requirement that coffee be organic coffee of a particular appellation.
|Overview: Quality Requirements
Specifications of the quality of products, services, processes or environments.