User Experience
Success Rate
Plain English
How many users succeed.
Definition
glossaryTask Success RateTask success rate measures the percentage of users who successfully complete a given task.Open glossary term is the proportion of users who complete a given task successfully. It depends on defining what counts as success before testing begins, otherwise the threshold moves to fit the result.
In practice
Used to evaluate glossaryUsabilityUsability is how easy and efficient it is for users to complete tasks within a product. It focuses on clarity, simplicity, and reducing effort so users can achieve their goals without confusion or friction.Open glossary term and effectiveness of a product.
In context
It needs a threshold defined in advance. Deciding after the glossarySessionA session is a single period of user interaction with a product, from entry to exit within a defined timeframe.Open glossary term whether someone who took the long route counts as successful is how results get shaped to expectations.
The reality
High glossaryTask Success RateTask success rate measures the percentage of users who successfully complete a given task.Open glossary term can still hide poor experiences.
Compared with
Success Rate vs Conversion Rate
glossaryTask Success RateTask success rate measures the percentage of users who successfully complete a given task.Open glossary term is measured in testing against a defined task, usually with a small sample. glossaryConversion RateConversion rate is the percentage of users who complete a desired action compared to the total number of users.Open glossary term is measured in production across real glossaryTrafficTraffic refers to the number of users visiting a website, app, or digital product over a given period.Open glossary term. High success in testing with poor conversion usually means the task was not the barrier.
FAQ
Common questions
A few practical answers to the questions that usually come up around this term.
What is success rate?
The percentage of successful glossaryTask CompletionTask completion is whether a user can successfully finish a specific task they set out to do. It is the first measure to check in usability testing, because a product people cannot finish tasks on has failed whatever else it does well.Open glossary term.
How is it calculated?
Successful users divided by total users.
Why is it important?
It measures glossaryUsabilityUsability is how easy and efficient it is for users to complete tasks within a product. It focuses on clarity, simplicity, and reducing effort so users can achieve their goals without confusion or friction.Open glossary term.
What is a limitation?
It does not show user effort.
Related Services
Related Guides
Related Terms
