{"id":38799,"date":"2021-09-07T14:20:03","date_gmt":"2021-09-07T06:20:03","guid":{"rendered":"https:\/\/version-2.com\/?p=38799"},"modified":"2021-09-10T15:10:40","modified_gmt":"2021-09-10T07:10:40","slug":"user-experience-monitoring","status":"publish","type":"post","link":"https:\/\/version-2.com\/zh\/2021\/09\/user-experience-monitoring\/","title":{"rendered":"User Experience Monitoring"},"content":{"rendered":"\t\t
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Advanced tasks: user experience monitoring<\/h2>

In the last century we had very primitive computers and now, at the dawn of a new millennium\u00a0are we the users who have become primitive !?<\/strong>\u00a0Want to learn more? Let\u2019s get to know User Experience Monitoring<\/p>

My first computer, in 1987, was a laptop with a monochrome LCD screen and 16 kilobytes of program memory. They were 15,584 precious bytes and they were read and executed very quickly. When I started to study engineering, it was the turn for that noble artifact to perform approximate integrals and, bam! This is where user experience comes in, when the professor asked me to compare his final result with that of the computer.<\/p>

Sometimes, depending on the complexity of the formula and the iterations requested, the teacher would finish before the computer. That is why I had to choose those parameters well before starting the calculation, just based on estimation. A decade later, GNU\/Linux already existed, the Internet boom began (which has not stopped to this day) and we began to connect by\u00a0applications that allow us to have a terminal window<\/a>\u00a0and thus leave workload calculation to servers dedicated to it.<\/p>

The experienced user<\/h3>

What we were clear about was that computing power was needed. Decades had gone by where it was delegated to remote terminals and\/or dumb terminals and the entire workload was done on a \u201csupercomputer.\u201d Sir Tim Berners-Lee created, de facto, HTML and web pages were like static board ads, changing from time to time. Something called\u00a0Common Gateway Interface (CGI)<\/a>\u00a0was invented to allow them some dynamism. This is how we began to worry about the time it took to solve calculations and results and then present them in a web page template.<\/p>

Databases evolved: I used MS Access\u00ae for small applications and for everything else dBase\u00ae and Clipper\u00ae. Then Visual Fox Pro\u00ae came, with which I was able to handle tens of millions of records on a personal computer.<\/p>

It was inevitable that databases would pass by without impacting our lives.\u00a0<\/strong>Later, in this century, PHP language was responsible not only for creating web pages, their HTML code, but we could also custom generate, in several versions, according to different parameters, connecting directly to databases and retrieving data for users in real time.<\/p>

Brief retrospective<\/h3>

By the beginning of this century, Pandora FMS was born (in 2004, to be precise<\/a>) and the checking and loading time of a web page, its HTML component, is part of what I consider primitive monitoring. It even has some advanced components, such as text search on the web page or simple login, like the POST type, to take the time it takes to return a result, among other Modules.For Pandora FMS, each measure is called a Module, which are grouped by Agents.<\/strong><\/p>

Meanwhile, desktop applications, now known as on premise, were also evolving. In said applications, all their binary code relies on the device where they are executed, and the data is either obtained from a local file or is connected to a database to obtain and edit information, more useful and widely used. They are also known as native applications of each operating system in particular.<\/p>

Pandora FMS can do remote database checks and we can add operations that a user would generally do. For example, ask for the last seven days of sales, -if the database is online- how long it takes to return this result: if it takes X amount of seconds or more, return a warning on the screen or an alert by mail, SMS, and so on. This gives you a rough idea of the state and operation of a system, but it is not yet user experience monitoring.<\/p>

Complex applications<\/h3>

As the computing power in servers has always been higher than in our homes or offices, the ingenuity of\u00a0application programming interface<\/strong>, better known as\u00a0API<\/a>, was realized. An API is a set of functions, procedures, and subroutines that provides a \u201clibrary\u201d to be used by other software. Pandora FMS and many applications have this way of allowing third parties to develop their own interfaces to perform predefined tasks: create a new article in the database? Publish a price list? These tasks are candidates to be performed through an API.<\/p>

But we are approaching user experience monitoring:<\/strong>\u00a0if the application created by a third party goes slowly, where is the bottleneck?, in the application?, on the server?, in the communication of the server?\u00a0Are there other causes for this delay?<\/strong><\/p>

Another detail to take into account is our human factor: I have personally had to be told that an application I have made \u201cis going slow\u201d. I took the source code, I changed the background color of the forms, I compiled, installed and received a variety of different responses: what got better, what got worse, etc. That is what is called qualitative reporting, but without figures or facts to support it.<\/p>

Pandora FMS has\u00a0real cases of experience monitoring<\/a>\u00a0where they reported\u00a0quantitatively<\/strong>\u00a0how and when process delays were detected. Thus we are already reaching the present, the applications that we use the most at the time of writing these lines.<\/p>

Web applications<\/h3>

You can see how the Internet has changed the way we work to reach something that is practically ubiquitous today: web applications. Through a web browser, users are identified and everything is done online, whether the web application connects directly or,\u00a0through API<\/a>, to one or more databases.<\/p>

They have the advantage of being able to quickly change forms for users, but it opens up other problems such as workload sharing between multiple servers and redundancy in data storage. For all this, Pandora FMS has excellent tools, and we can even add our own, that\u2019s how flexible it is!<\/p>

Said web applications can also be delegated to third parties, and if this is the case, Pandora FMS can monitor the\u00a0service level agreements<\/a>\u00a0(Service Level Agreement or\u00a0SLA<\/strong>): these scenarios are really complex and they may even need to include user experience monitoring.<\/p>

Primitive Users<\/h3>

Thus, we have reached the great concern of our times: Is our computer powerful enough to run our favorite web browser? Because, actually, the vast majority only run a web browser and there they read their email, communicate through social networks, carry out their remote work during the pandemic, access their bank accounts, publish on their blog, keep spreadsheets online for different subjects\u2026There are even dozens of tabs open, each one consuming processor and memory cycles by the web browser.<\/strong><\/p>

We have become rudimentary and elementary, even our web browser updates automatically. We can acquire a new computer and in a short time have everything working again as we had it since it is completely based on the web browser. I even have Mozilla Firefox and Google Chrome accounts that sync with my other devices like mobile phones and e-book readers: they offer this service to keep everything centralized.<\/p>

With Pandora FMS and its\u00a0Software Agent<\/a>\u00a0(small application installed in each device and that monitors locally) we can quickly know if these web browsers represent a very large workload for the device, as well as inventory of the software and hardware from all of them.<\/p>

Have we been monitoring enough with this brief retrospective that I told you?<\/strong>\u00a0This is where user experience monitoring comes in.<\/p>

Experience monitoring<\/h3>

User experience monitoring is like\u00a0simulating being a user who executes predefined monitoring tasks\u00a0<\/strong>and whose results are carefully measured, saved and sent to the corresponding Pandora FMS server.<\/p>

It was invented for all this that I explained you, both web applications and desktop applications.<\/p>

To be honest, I\u2019m not the first to write on this blog about user experience monitoring:<\/p>

For web applications,\u00a0Pandora Web Robot (PWR)<\/a>.
For desktop applications on MS Windows\u00ae:\u00a0Pandora Desktop Robot<\/a>\u00a0(PDR).<\/p>