Application Performance Management (APM) is the monitoring and management of performance and availability of software applications. To fully manage and monitor the performance of an application, it requires collecting and monitoring a lot of different types of data. An APM solution is like the black box of an airplane.Application performance management (APM) tools alert IT staff to disruptions in availability and/or quality to end users when accessing mission-critical applications. Applications monitored by APM tools can include traditional non-connected applications, Web-enabled applications, streaming apps and cloud applications. 

Complete application performance management solution:

• Performance of individual web requests or transactions
• Usage and performance of all application dependencies like databases, web services, caching, etc
• Detailed transaction traces down to specific lines of code
• Basic server metrics like CPU, memory, etc
• Application framework metrics like performance counters
• Application log data
• Application errors
• Real user monitoring