Articles

How to Measure Product Success

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What is success for you? When do you feel that you succeeded in your job? Is it when you are promoted? Maybe when you are tasked with more important assignments and greater responsibilities? Or does success mean increased creativity and freedom to work on the job you enjoy? We all envision success differently, and we need some sort of North Star to gauge if what we’re doing is getting us closer or further from it. 

Business success is usually measured in monetary value. But, revenue alone is a third-rate guide to building a sustainable product that brings value to both your company and customers. How can a business find its North Star? What might it be? 

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ExpectedConditions in Selenium

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The majority of web products use AJAX (Asynchronous JavaScript and XML), where elements on the page are loaded at varying time intervals. This can lead to timing issues when automation testing is performed using the Selenium framework. What if a test is run on a WebElement that is not present in the DOM? The findElement function will raise ElementNotVisibleException.

Here are other scenarios that can cause issues in Selenium due to the dynamic loading of elements:

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When Microservices Are a Bad Idea

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On paper, microservices sound wonderful. They are modular, scalable, and fault tolerant. A lot of companies have had great success using this model, so microservices might naturally seem to be the superior architecture and the best way to start new applications.

However, most firms that have succeeded with microservices did not begin with them. Consider the examples of Airbnb and Twitter, which went the microservice route after outgrowing their monoliths and are now battling its complexities. Even successful companies that use microservices appear to still be figuring out the best way to make them work. It is evident that microservices come with their share of tradeoffs.

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What Is the Difference Between SAST, DAST, and IAST?

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What benefits does SAST have? What’s the difference between SAST and DAST? What’s IAST? What do all these words mean?! Let’s talk about this and more in the overview of the main types of Application Security Testing (AST).

Informational Security

Before we start deciphering these terms, let’s figure out why we need security testing at all. In modern world, software integrates into automation processes almost everywhere, the number of code lines in applications is increasing. As a result, the number of possible vulnerabilities and errors is increasing as well. This creates the need for effective checking and testing of the source code.

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Automatically Creating Microservices Architecture Diagrams

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In application development, microservices is an architectural style where larger applications are structured as a collection of smaller, independent, yet interconnected services. While this allows for highly maintainable and testable applications (as each service can be maintained independent of the larger application), the problem with this method is the inherent complexity of interactions between microservices. It can be difficult for developers and team members to visualize how these microservices are connected to each other. We have been looking for ways to produce architectural diagrams that illustrate these interactions. We found that GraphViz helped us to solve part of this problem, as it can take the microservices structure of an application in the DOT language and convert it into a PNG format. However, we wanted this process to be even more user-friendly and more automatic, so that the user would not have to manually generate a DOT file of their microservices architecture. 

In-Browser Tool

As we could not find such a tool, we decided to create one ourselves. We decided that the most user-friendly interface would be to create an in-browser tool that allows the user to upload a jar  file containing a packaged service, and to have an image automatically rendered. This article discusses how we went about creating this tool and includes an example of what happens « behind the scenes » of this interface. 

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Kubernetes Data Simplicity: Getting Started With K8ssandra

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You might have heard about the K8ssandra project and want to start contributing, or maybe you want to start using all of its features. If you aren’t familiar with K8ssandra (pronounced like “Kate Sandra”), you can read this overview before digging into the developer activities in this post.

In a nutshell, K8ssandra is an open-source distribution of Apache Cassandra™ for Kubernetes, which includes a rich set of trusted open-source services and tooling. K8ssandra comes with handy features that are baked-in and pluggable, which allows for flexible deployment and configuration.

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Top 5 Datadog Integrations To Improve the Efficiency of Tech Teams

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Datadog is an exceptional tool for DevOps teams, developers, and SREs. It’s suitable for a broad range of cloud applications of every size. However, despite its powerful capabilities, most businesses aren’t making the most of Datadog. Are you?

  • Can you see how newly launched features are affecting user experience?
  • Can you immediately see the root cause of an issue on your dashboard – without digging around? 
  • Are you managing Jira tickets directly in Datadog?

Datadog’s integrations help make the platform stand out, but using them to make Datadog more powerful can be confusing, as there are over 500 interesting tools to consider.

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Time-series Forecasting With TensorFlow and QuestDB

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Machine Learning For Time-series Forecasting

Machine learning is taking the world by storm, performing many tasks with human-like accuracy. In the medical field, there are now smart assistants that can check your health over time. In finance, there are tools that can predict the return on your investment with a reasonable degree of accuracy. In online marketing, there are product recommenders that suggest specific products and brands based on your purchase history.

In each of these fields, a different type of data can be used to train machine learning models. Among them, time-series data is used for training machine learning algorithms where time is the crucial component.

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Open API and Omnichannel with Apache Kafka in Healthcare

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IT modernization and innovative new technologies change the healthcare industry significantly. This blog series explores how data streaming with Apache Kafka enables real-time data processing and business process automation. Real-world examples show how traditional enterprises and startups increase efficiency, reduce cost, and improve the human experience across the healthcare value chain, including pharma, insurance, providers, retail, and manufacturing. This is part five: Open API and Omnichannel. Examples include Care.com and Invitae.

Blog Series – Kafka in Healthcare

Many healthcare companies leverage Kafka today. Use cases exist in every domain across the healthcare value chain. Most companies deploy data streaming in different business domains. Use cases often overlap. I tried to categorize a few real-world deployments into different technical scenarios and added a few real-world examples:

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Ktor – A Kotlin Web Framework

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Ktor is an asynchronous web framework written in and designed for Kotlin, leveraging coroutines and allowing you to write asynchronous code without having to manage any threads yourself.

Here is a bit more background information on Ktor. It is backed by Jetbrains, who are also the creators of Kotlin itself. Who better to make a Kotlin web framework than the people that work on the language?

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