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Insights sobre o ecossistema de design e desenvolvimento de apps.

Business

Como construímos estimativas para o desenvolvimento de aplicativos

Precisa de uma estimativa para construir um aplicativo mobile ou web?

A resposta não é tão simples quanto parece, pois existem muitos elementos que devemos levar em consideração ao criar as estimativas. Metaforicamente falando, é o mesmo que perguntar a um engenheiro(a) quanto custará para construir uma casa. Você quer 1 ou 2 quartos? Quantos andares? Que tipo de luminárias você quer? Qual é a metragem quadrada? Você entendeu a ideia. Para fornecer uma estimativa confiável para a construção de uma casa, é necessário explorar todos esses – e muitos outros! – detalhes em uma conversa.
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Test Development Development Back-end

Behavior-driven Development: how to develop tests for a Pokédex using BDD

In this tutorial, I am going to show you how to start using BDD and will use a Pokémon Pokédex search feature as an example. BDD means Behavior-driven Development and it’s a refinement of existing TDD processes. It considers the feature behavior ahead of the development and the test processes. A system can have many behaviors, which are basically how a feature operates input, process and output.

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Workflow About Us Others Business Design

Storytelling your way to innovation

Innovation matters. It is determinant for organizational growth and consequently to the products that we are building.

Having said that, when it comes down to exploring new opportunities that could lead us to innovation, the way we build and tell these stories can lead us to success (or not). But why isn’t that so easy? Because we are programmed with many behavioral mechanisms that prevent us from acting. To briefly illustrate, one of these behavioral mechanisms is the so-called “negativity bias.” Continue Reading

DevOps Development Back-end

Asynchronous Task Queue with Django, Celery and AWS SQS

When dealing with heavy workload functionalities that can have a big impact on web application performance, you may face the need of running it asynchronously (scheduled or not). These asynchronous background tasks can not only drastically improve the scalability of the application by moving those highly consuming operations to the background, but also improve the functionality usability. Once spread on different components, each with its own responsibility, your code can even look cleaner, more isolated and can be easier to maintain.

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Mobile Development

Mobile API test with web proxy

As a Q.A. analyst, I have learned that the integration between the backend API and the frontend can be difficult to test and somewhat overlooked since unit tests and end-to-end tests are more common. With this approach you’ll have not only a broader understanding of the solution compared to unit tests, but also an increase in test speed and stability.

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Technical Front-end Development Development

How to Avoid Array Mutation

Originally posted on dev.to

In this article, I’ll focus on showing how to add, edit and remove items in an array causing mutation and non-mutation ways.

One thing we need to keep in mind when writing code avoiding mutation is to return a new reference to the data after the update.

It’s a common approach when working with functional programming and if you want to understand some concepts of functional programming I recommend you read this article I wrote some time ago.

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Technical Business Development

Technology trends transforming the energy sector

Have you heard about microgrids, virtual power plants, demand response, or distributed generation concepts? Do you know how these issues relate to the technological trends expected for this year? In the era of startups, innovation, and exponential growth, new models are emerging in different markets to address technological trends that are already a reality in many countries. The energy sector has evolved alongside this trend, creating opportunities for the insertion of new business models, such as those involving distributed generation, and increasingly making the market more flexible.

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Technical Front-end Development

Using functional programming to create a game in JS

There has been a lot of hype around the functional programming paradigm for some time and there are a lot of great books and articles about it on the internet, but it’s not so easy to find real examples with its application. So have I decided to create a game trying to follow its concepts using Javascript, which is the most popular programming language today. In this post, I will share some of this experience and tell you if it was worth it.

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