software design Software design is the process of conceptualizing how a software system will work before it is implemented or modified. Software design also refers to the direct result of the design process the concepts of how the software will work which co ...

web design Web design encompasses many different skills and disciplines in the production and maintenance of websites. The different areas of web design include web graphic design; user interface design (UI design); authoring, including standardised code a ...

, and electronic

product design Product design is the process of creating new Product (business), products for businesses to sell to their customers. It involves the generation and development of ideas through a systematic process that leads to the creation of innovative products ...

, synthetic monitoring (also known as ''active monitoring or proactive monitoring'') is a monitoring technique that is done by using a

simulation A simulation is an imitative representation of a process or system that could exist in the real world. In this broad sense, simulation can often be used interchangeably with model. Sometimes a clear distinction between the two terms is made, in ...

or scripted recordings of transactions. Behavioral scripts (or paths) are created to simulate an action or path that a customer or

end user In product development, an end user (sometimes end-user) is a person who ultimately uses or is intended to ultimately use a product. The end user stands in contrast to users who support or maintain the product, such as sysops, system administrato ...

would take on a site, application, or other software (or even hardware). Those paths are then continuously monitored at specified intervals for performance, such as functionality, availability, and response time measures. Synthetic monitoring enables a webmaster or an IT/Operations professional to identify problems and determine if a

website A website (also written as a web site) is any web page whose content is identified by a common domain name and is published on at least one web server. Websites are typically dedicated to a particular topic or purpose, such as news, educatio ...

or application is slow or experiencing downtime before that problem affects actual end users or customers. This type of monitoring does not require actual

traffic Traffic is the movement of vehicles and pedestrians along land routes. Traffic laws govern and regulate traffic, while rules of the road include traffic laws and informal rules that may have developed over time to facilitate the orderly an ...

, thus the name synthetic, as it enables companies to test applications 24x7, or test new applications prior to a live customer-facing launch. Because synthetic monitoring is a simulation of typical user behavior or navigation through a website, it is often best used to monitor commonly trafficked paths and critical business processes. Synthetic tests must be scripted in advance, so it is not feasible to measure performance for every permutation of a navigational path an end user might take. These scripts are then injected into the code of the application or website, which is then tested under artificial loads. This, of course, can be a contrast to actual load/traffic when the design goes live. In this case, real user monitoring is performed, where the performance metrics are tested against real loads. This is more suited for passive monitoring. Synthetic testing is useful for measuring uptime, availability, and response time of critical pages and transactions (how a site performs from all geographies) but doesn't monitor or capture actual end user interactions, see Website monitoring. Synthetic monitoring will report myriad metrics, and it's up to the a webmaster or an IT/Operations professional to identify which ones are most important. Common metrics from synthetic website monitoring includes Time to First Byte, Speed Index, Time to Interactive, and Page Complete. Demand for synthetic monitoring has grown exponentially corresponding to the underlying growth in websites/applications. IT/Operations staff need mechanisms to identify health and performance issues in advance of their customers identifying and reporting them to avoid customer satisfaction issues. To accomplish this they can write custom simulation scripts, or leverage the growing number of commercial synthetic monitoring solutions. Example include: * New Relic's Synthetics
ManageEngine Applications Manager's synthetic monitoring
via Real Browser Monitor(RBM) * F5's Distributed Cloud Synthetic Monitoring * Datadog's Automated Synthetic Monitoring * Powerhouse Nudge Synthetic Monitoring by Atakama Technologies * Alyvix's visual synthetic monitoring for applications and services By implementing Synthetic Monitoring IT/Operations staffs are able to identify application issues in advance of them becoming critical, and take remedial action. Identifying such issues can be difficult because of: * The number of applications monitored by an average sized organization can be several hundred * Issues may vary by geography; for example performance issues may be evident to users in Asia, but may not appear to users in Europe * IT/Operations staff need not only to identify the fact that an issue exists, but also need diagnostic information on what is causing the identified issue * IT/Operations staff often lack the historical perspective on application performance which can be helpful in diagnosing an evolving issue

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