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Tutoriel de test en boîte blanche: guide complet avec exemples et meilleures pratiques

Apprenez à tester votre code avec cet incroyable tutoriel de test en boîte blanche! Découvrez les meilleures pratiques et des exemples pratiques pour vous aider à démarrer.

## Test de boîte blanche : une méthode de test logiciel

La méthode de test logiciel du White box testing est une méthode de test logiciel dans laquelle la structure interne et l’implémentation du logiciel testé sont connues et utilisées comme base pour concevoir les cas de test. Il implique le test du logiciel au niveau du code et nécessite une bonne compréhension du code et de la conception du logiciel. Il est également connu sous le nom de glass box, transparent box, clear box ou structural testing.

La plupart des testeurs ont déjà eu une certaine expérience avec ce type de test à un moment donné de leur carrière. Des techniques comme celles-ci se battent pour exister dans un monde de plus en plus axé sur l’agilité. L’adoption d’approches agiles ne signifie pas reporter des tâches pour mener le projet à bien.

Les bases de données sont un outil très important dans le processus de test White Box. Les bases de données peuvent être utilisées pour stocker les informations sur les tests et leurs résultats, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests. Les bases de données peuvent également être utilisées pour stocker des informations sur le code source et les fonctionnalités du logiciel, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests.

Les bases de données peuvent également être utilisées pour stocker des informations sur les tests et leurs résultats, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests. Les bases de données peuvent également être utilisées pour stocker des informations sur le code source et les fonctionnalités du logiciel, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests. Les bases de données peuvent également être utilisées pour stocker des informations sur les performances et la fiabilité du logiciel, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests.

Les bases de données sont également utiles pour enregistrer et suivre les bugs et les problèmes rencontrés lors des tests. Les bases de données peuvent être utilisées pour stocker des informations sur les tests et leurs résultats, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests. Les bases de données peuvent également être utilisées pour stocker des informations sur les performances et la fiabilité du logiciel, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests.

Enfin, les bases de données peuvent être utilisées pour stocker des informations sur les tests et leurs résultats, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests. Les bases de données peuvent également être utilisées pour stocker des informations sur le code source et les fonctionnalités du logiciel, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs tests. De plus, les bases de données peuvent être utilisées pour stocker des informations sur les performances et la fiabilité du logiciel, ce qui permet aux testeurs d’accéder rapidement aux informations dont ils ont besoin pour effectuer leurs

Source de l’article sur DZONE

Many firms’ design and development decisions are increasingly oriented toward human-centered innovation. Instead of rushing goods to market, these firms are using a user-centered design approach.

Design and development teams build high-performing digital products or websites that uniquely meet customers’ demands by concentrating on the user experience. After all, a good web design is helpful in boosting the business reputation or user experience.

This post will define user-centered design, discuss its fundamental principles, and describe the user-centered design process.

What Is User-Centered Design?

To create an enjoyable solution to a problem, user-centered design is a collection of iterative design processes concentrating on the user’s needs at each step. In UCD, the expectations, objectives, and preferences of the user significantly impact design decisions.

Additionally, users are actively involved in the entire process from start to finish. User-centered design principles encourage designers to create products with users rather than just for them. This strategy typically includes user research, interviews, usability testing, and a massive amount of feedback gathering.

UCD Requires Four Fundamental Components:

  • Visibility: Can people see what your website is about and how to utilize it the moment they land on your page?
  • Availability: Is your website user-friendly? Can they swiftly locate information? They should be able to find call-to-action buttons, menus, filters, and search choices with ease.
  • Legibility: Is the text simple to read for users?
  • Language: Is the language simple to grasp for users? Do you avoid using industry jargon in your UX authoring, which might lead to confusion and hesitation?

What Is The Significance Of UCD?

User experience is important in product design, especially in digital products such as app design, web and interface design, and marketing. Customers want their lives to be simplified. A website, app, or product exists to fulfill a consumer. Hence its success is determined by their interaction with it.

The following are some of the advantages of a user-centered design strategy for a business:

  • Customers keep coming back for more
  • There would be an increase in sales
  • Creating polished, efficient, and widely available goods
  • Understanding challenges thoroughly to provide suitable solutions
  • Customers and teams working together
  • Avoiding typical blunders
  • Enhancing Competitiveness
  • Assisting them in comprehending their market

It offers consumers the following advantages:

  • Making their life easier
  • Fulfilling their desires
  • Companies making them feel heard and understood
  • Making them feel important in the creation of things they use
  • Providing answers to challenges they were unaware they had or could not imagine solutions to

Let’s dig in to learn more about the advantages of UCD.

Businesses can benefit from using the user-centered design approach in various ways. As you incorporate this into your web development, you can enjoy the following four main advantages.

1. Prevent Project Failure

Your company might find it simpler to incorporate improvements and ensure your product is in line with actual user needs if you have a continuous feedback process assessing how customers react to your product, like a website.

Customers feel like their needs are better represented in the finished product, which can increase engagement and strengthen the bond with the company.

2. Improve ROI

This method produces products that more accurately reflect user expectations. The procedure also lessens mistakes made by website users, for instance. When combined, these factors motivate users to convert from leads to paying clients, boosting return on investment.

3. Increase Development Efficiency

In user-centered design, the objectives of the various team members are aligned. This can help clarify the best course of action for all parties involved. A more targeted, goal-oriented development process may be encouraged by the regular evaluation process.

Additionally, businesses can engage stakeholders and explain how their efforts and methodologies will improve customer interactions by using an iterative life cycle during product development.

4. Up The Level Of Competition

Customers will more fully appreciate what you offer, improve their engagement with your product or website, and be more likely to purchase from you if your product is created with their needs and expectations in mind.

As a result, this may increase your ability to compete in your sector.

5. KPIs Are Included

Given your user needs and business objectives, how do you move from the first to the second? You can measure key performance indicators with this in mind once you know what user needs are essential for the overall goals.

For instance, productivity may be the focus of office software, shopper activity may be the focus of sales tools, and retention rates may be the focus of other apps. All of these are necessary steps toward achieving business values like profit and revenue.

Human-Centered Design Versus User-Centered Design

There is a significant difference between humans and users. Simply put, all users are humans; however, not all humans will use your product. Therefore, you must thoroughly understand your target market to produce a successful user-centered design.

Detailed research should be done on the problems and goals of your users. Then, talk to them and give them several chances to offer feedback. By doing this, you’ll create a user persona that is complete and that you can use to determine the priorities for your design.

It’s critical to understand that different user groups may have additional requirements, levels of technical expertise, and expectations for using products like the one you’ve made.

What crucial guidelines or principles should designers consider when adopting a user-centric design?

The Process Of User-Centered Design

Certain fundamental principles underpin user-centered design. While the development process is always iterative, no explicit methods for implementation are specified. The approach can be implemented in either a waterfall or an agile environment.

1. Contextualization

The first step is to analyze the environment in which users will use the product. What are the intended applications of the product for future users? Teams working on projects can get answers by watching and talking to potential users.

2. Outlining The Prerequisites

Specifying the requirements for the new product is the second step. In this step, user requirements are described while considering corporate needs.

3. Design

Once the requirements are established, the actual design process can begin. Designers typically start by producing a straightforward prototype, like one made of paper, then move on to digital wireframes and a finished prototype.

4. Analysis

The project team solicits feedback from potential users after creating a prototype. This is typically done for digital applications through in-depth user testing and qualitative research.

Do surveys and tests evaluate user satisfaction, effectiveness, and efficiency? With the new information, the project team goes back to step 2 or step 3 of the design process to improve the product. Once the user feedback is satisfied, these iterations continue while taking into account corporate frameworks (time and costs).

Top 10 User-Centered Design Principles

Principles of user-centered design attempt to guarantee that usability is the primary priority throughout the development process. These principles, if successfully followed, will ensure that user experience is fulfilled not just during the initial introduction of a product but also during its use.

Furthermore, each of the following principles may be tailored to match the specific requirements and interaction demands of any product.

1. Use Simple Language

Professional Web Designer strives to provide the most readable discourse for the user while creating a product. This involves clarifying vocabulary, eliminating jargon, and simply providing information pertinent to the work.

Presenting users with irrelevant information throughout their use of the product taints its usefulness. Furthermore, basic language helps the user finish the work without being overwhelmed or confused.

2. Feedback

Users expect a reaction to all of their actions. This might involve modifying the look of the screen after completing an activity. If the job is finished after some time, it should display a loading page to notify the user that the task is in process.

Keeping the user informed throughout the process reassures them and keeps them on track with their job.

3. Maintaining Consistency

Keeping the product consistent is essential in ensuring an ideal user experience. Consistency affects how customers approach a product, and the time it takes to learn how to use it.

From the start of the project until its completion, the consistent philosophy underpinning the UCD process should be maintained. If the interface design needs to be updated, it is critical to maintaining consistency across new features to stay beneficial to the user.

4. Give The Complete User Control

Consumers are already aware of their requirements. They should be able to use a product with minimal effort and depend on the product’s help to accomplish the rest.

By removing the effort from the job, the user can do it quickly while keeping control of their activities.

5. Describe The Situation

Before developing a product, the designer must first investigate the ideal user and their wants. The designers can gain a comprehensive sense of some of the issues these people experience by studying their lifestyles.

Many of these observations are conducted through interviews. These interviews provide the designer with information on the exact goals that users want to attain and how they want to achieve them.

6. Examine the Design

Designers undertake usability testing with actual users of their product at this stage in the UCD process. This stage provides designers with insight into how consumers will interact with the product and how to modify it to suit them better.

It is advised that this stage be completed as quickly as feasible. The sooner customers provide input, the faster designers can comprehend their product from the user’s perspective.

7. Create Designs That Are Specific To The Needs Of The User

The design team must examine the distinctive features of their intended demographic as well as frequent real-world activities while beginning the design process. Furthermore, the product should be appropriate for the environment in which it will be utilized the most.

Making a product that needs a lot of work from the user reduces its usability and usefulness, ultimately defeating the objective of UCD.

8. The Design Process Is Iterative

Because user-centered design is based on putting the user first, the product team should constantly be working to improve the user experience. By introducing changes gradually, you will gain a better understanding of your target audience.

9. Adequate Navigational Tools

An essential component of the user experience is the capability to navigate between pages of your website and return to the previous one. Make sure users know where they are on your website and how to leave any pages they don’t want to see.

Customers can better understand how to navigate your page by giving them features like a navigation map, for instance. Make it simple for customers to change their order without leaving the current page if they buy clothing and discover they need a different size once they reach the checkout page.

10. Unflawed System

Customers should find it easy to navigate between your website’s pages and accomplish their goals. If they make a mistake, be there to help them fix it so they can achieve their goal.

The form may ask for specific, essential fields, such as the square footage, and may also include a gentle reminder or an alert that appears if the user accidentally leaves a required field blank.

Customers may feel more comfortable responding to your prompts and participating in a conversation if you ask questions one at a time and offer automated responses for each response.

Wrapping Up

User-centered design is more than just making a good product. It goes further than that. You demonstrate your motivations and intentions by putting your users in the spotlight. You’re demonstrating that it’s not all about meeting deadlines or turning a profit. Instead, you’re telling your users that you understand what they want and prioritize their needs.

It should come as no surprise that the most effective teams are user-centric. Knowing your customer is essential for success in any industry, including design. Create products that put the user first, and you will create products that people will love.

You can build a more robust, user-friendly website that is better equipped to respond to user needs and expectations by incorporating the User Centered Design process into your product design. However, it’s crucial to collaborate with a specialist who can apply these techniques and produce the result you’ve envisioned.

 

Featured image by pch.vector on Freepik

Source

The post 10 Key Principles of User-Centered Design first appeared on Webdesigner Depot.

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This is an article from DZone’s 2022 Performance and Site Reliability Trend Report.

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Distributed tracing, as the name suggests, is a method of tracking requests as it flows through distributed applications. Along with logs and metrics, distributed tracing makes up the three pillars of observability. While all three signals are important to determine the health of the overall system, distributed tracing has seen significant growth and adoption in recent years. 

Source de l’article sur DZONE

This article will demonstrate the heterogeneous systems integration and building of the BI system and mainly talk about the DELTA load issues and how to overcome them. How can we compare the source table and target table when we cannot find a proper way to identify the changes in the source table using the SSIS ETL Tool?

Systems Used

  • SAP S/4HANA is an Enterprise Resource Planning (ERP) software package meant to cover all day-to-day processes of an enterprise, e.g., order-to-cash, procure-to-pay, finance & controlling request-to-service, and core capabilities. SAP HANA is a column-oriented, in-memory relational database that combines OLAP and OLTP operations into a single system.
  • SAP Landscape Transformation (SLT) Replication is a trigger-based data replication method in the HANA system. It is a perfect solution for replicating real-time data or schedule-based replication from SAP and non-SAP sources.
  • Azure SQL Database is a fully managed platform as a service (PaaS) database engine that handles most of the management functions offered by the database, including backups, patching, upgrading, and monitoring, with minimal user involvement.
  • SQL Server Integration Services (SSIS) is a platform for building enterprise-level data integration and transformation solutions. SSIS is used to integrate and establish the pipeline for ETL and solve complex business problems by copying or downloading files, loading data warehouses, cleansing, and mining data.
  • Power BI is an interactive data visualization software developed by Microsoft with a primary focus on business intelligence.

Business Requirement

Let us first talk about the business requirements. We have more than 20 different Point-of-Sale (POS) data from other online retailers like Target, Walmart, Amazon, Macy’s, Kohl’s, JC Penney, etc. Apart from this, the primary business transactions will happen in SAP S/4HANA, and business users will require the BI reports for analysis purposes.

Source de l’article sur DZONE

We build applications that must process very high numbers of events with minimum latency. Generating unique IDs for these events using the traditional method of UUIDs introduces an unacceptable time overhead into our applications, so an alternative approach is needed.

I recently wrote an article on how timestamps can be used as unique identifiers, as they are much cheaper to generate than other methods of generating unique identifiers, taking a fraction of a microsecond. 

Source de l’article sur DZONE

This might sound like a joke, but it’s actually not. First, let’s define inheritance. Inheritance is the ability to use polymorphism to override a method with another implementation. You inherit from a class, and you override one of its virtual functions. This results in that code having an object that will no longer invoke the old base class method, but rather the new overridden method. Kind of easy, right?

Polymorphism Is the Ability To Have Old Code Invoke New Code

Well, there’s nothing intrinsically special about class-based OOP that prevents you from implementing the above in a functional context. In a functional programming language, you can have a reference to a function, and replace the function it’s pointing to, before passing in your function reference to some method in need of a function with the specified signature. This achieves the exact same result as « classic polymorphism. »

Source de l’article sur DZONE

Agile, which started off as a better and more practical method of software development proposed by a group of developers, is now transforming the way in which organizations are run. Agile is now adopted by banks, manufacturers, research & development centers, hospitals, and even airports for execution. 

When the scale and reach of Agile increased, newer frameworks such as Scaled Agile Framework (SAFe), Large Scale Scrum, Nexus, and so on gained popularity. Enterprise agility and business agility is radically changing the way in which organizations are structured. 

Source de l’article sur DZONE

java.lang.String#intern() is an interesting function in Java. When used in the right place, it has the potential to reduce the overall memory consumption of your application by eliminating duplicate strings in your application. To learn how the intern() function works, you may refer to this blog. In this post let’s discuss the performance impact of using java.lang.String#intern() function in your application.

Intern() Function Demo

To study the performance behaviour of the intern() method, we created these two simple programs:

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Milvus is an open-source vector database for AI applications. It provides a variety of installation methods, including building from source code and installing Milvus with Docker Compose/Helm/APT/YUM/Ansible. Users can choose one of the installation methods depending on their operating systems and preferences. However, there are many data scientists and AI engineers in the Milvus community who work with Python and yearn for a much simpler installation method than the currently available ones.

Therefore, we released embedded Milvus, a user-friendly Python version, along with Milvus 2.1 to empower more Python developers in our community. This article introduces what embedded Milvus is and provides instructions on how to install and use it.

Source de l’article sur DZONE

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. 

Source de l’article sur DZONE