Tech glossary – A definitive list of IT terms

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テックリクルーターのためのIT用語集

IT terms are not easy if you are a non-coder. Still, in order to be able to keep up with modern business, it’s important to understand the basics. So get out of your comfort zone and master the tech language. We’ve compiled this DevSkiller Tech Glossary of IT terms to make it as easy as it can be.

Also try- 15 modern tech terms you should know

We’ve divided the most important technical IT terms into 10 categories. Learning these terms will boost your credibility in IT recruitment and improve your communication with developers.

Glossary of general IT terms

プログラミング言語

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A プログラミング言語 is used by programmers to instruct a computer to perform a certain job. It’s normally a set of instructions that can be used to achieve the desired output of a computer application written in a certain programming language.

ソースコード

As source code is a set of instructions and statements written by a programmer using a computer programming language. This code is later translated into machine language (binary code) by a compiler. The source code is the only stage where a programmer can read and modify a computer program.

フレームワーク

Photo by Artem Sapegin に於いて アンスプラッシュ

A framework code that is already written and covers low(er) level, generic functionalities. Programmers can selectively change it with additional user-written code, thus providing application-specific software. A software framework provides a standard way to build and deploy applications. It consists of many predefined solutions for common functionalities that are used to help build software applications, products, and solutions on top of it.

By using a framework, developers don’t have to write all the functionalities of the software that they are working on. These functionalities are already implemented in the framework and ready to use with a single command. Frameworks can improve developer productivity as well as the quality, reliability, and robustness of new software. Thus, a knowledge of frameworks for a specific job is one of the most important skills a developer can possess. Example frameworks: Bootstrap, React, Spring Framework, Rails, Symfony.

図書館

A library is a collection of predefined functions or routines that a program can use. Libraries are particularly valuable for storing frequently used routines because you do not need to explicitly link them to every program that uses them. Example libraries: JQuery, Google Guava, RxJava, d3.js.

カルチャーIT用語

アジャイルソフトウェア開発

Agile software development describes a set of values and principles for software development under which requirements and solutions evolve through the collaborative effort of self-organizing cross-functional teams. It advocates adaptive planning, evolutionary development, early delivery, and continuous improvement, and it encourages rapid and flexible responses to change. Described in アジャイルマニフェスト.

デブオプス

デブオプス focuses on rapid IT service delivery through the adoption of agile, lean practices in the context of a system-oriented approach. It is one of the IT terms that emphasizes people (and culture) and seeks to improve collaboration between operations and development teams.

DevOps implementations utilize technology — especially automation and monitoring tools that can leverage an increasingly programmable and dynamic infrastructure from a life cycle perspective. The core principles are consistent with many of Site Reliability Engineering (see: SRE below) principles and practices. One could view DevOps as a generalization of several core SRE principles to a wider range of organizations, management structures, and personnel. One could equivalently view SRE as a specific implementation of DevOps with some idiosyncratic extensions.

Read – 最も重要なDevOpsスキルのスクリーニング方法

SRE(サイト信頼性工学

SRE is a discipline that incorporates aspects of software engineering and applies that to operations whose goals are to create ultra-scalable and highly reliable software systems. It encourages product reliability, accountability, and innovation.

役割IT用語

フロントエンド開発者

A front-end developer essentially creates whatever has a digital visual presence with which people interact (client-side environment). Traditionally, a front-end developer is a person who is comfortable with both design and coding; in other words someone who is comfortable using simple design tools and is able to create a website using エッチエムティーエル を使用してスタイルを設定します。 CSSを使用しています。 とJavaScriptを使ってインタラクティブにしてみましょう。

Read – How to screen front-end developer skills

UIデザイナー

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A UI (User Interface) designer is someone that designs what the application looks like from the perspective of the user to enable users to interact with the application. UI designers must understand what the front-end developer expects from him/her and know how to communicate with them, as well as have design skills. Often this person does not have to be a programmer at all.

UXデザイナー

UX or a "ユーザーエクスペリエンス designer, is a person who helps create a better experience of using the application. This person simplifies the visual part of the application and brings out the features that are used most often. His/her job is to make the application as easy and useful for the users as possible to increase usability.

バックエンド開発者

A Back-end developer is involved in the process of combining a server, an application, and a database to solve a problem (server-side environment). This entire process is solidly entrenched in logic, a network of processes and queries that are resolved in split seconds to give you a certain desired output as a user. They are とは異なります。 フロントエンドの開発者は、バックエンドの開発者の仕事は、視覚的なデザインを一切必要としません。その代わり、論理的な推論と、特定の出力を目的としたソフトウェアアーキテクチャに依存します。

Read- What is the average back-end developer salary?

フルスタック開発者

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A full-stack developer is someone who is comfortable working with both back-end and front-end technologies. A general understanding of technologies from every part of the development process is necessary for a front-end developer. This, of course, means that they will not be an expert in any one particular field. Instead, they can offer a better overview of applicational possibilities and the capability to bridge the gap between how the system functions and how it looks and feels for the user.

Read more – Front end developer vs back end vs full stack – What’s the difference?

ミアンデベロッパー

A MEAN developer is someone who uses a JavaScript software stack for building dynamic websites and web applications. MEAN stack developers are experts in using MongoDB, Express.js, AngularJS (or Angular), and Node.js. Because all components of MEAN stack support programs written in JavaScript, MEAN applications can be written in one language for both server-side and client-side execution environments.

システム管理者(SysOp、sysadmin

System administrator is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems, mostly servers.

Programming language and technology IT terms lis

ジャワ

ソースは 1000logos

ジャワ is a compiled, object-oriented programming language, similar in syntax to C++. It is intended to let application developers “write once, run anywhere” meaning that compiled Java code can run on all platforms that support Java without the need for recompilation.

Read – How to screen Java developer skills

C

C programming language logo
ソースは Seeklogo

C is a general-purpose, imperative computer programming language supporting structured programming, lexical variable scope, and recursion. While a static type system prevents many unintended operations. C was originally developed by Dennis Ritchie between 1969 and 1973 at Bell Labs, and used to reimplement the Unix operating system. It has since become one of the 最も広く使われているプログラミング言語 of all time.

C++

C++ is a general-purpose programming language. It has imperative, object-oriented, and generic programming features and it provides facilities for low-level memory manipulation.

C1TP3T

C# (C sharp) is a programming language that is designed for building a variety of applications that run on the .NETフレームワーク. C# is simple, powerful, type-safe, and object-oriented.

See – Coding tests for C and C++

パイソン

ソースは パイソン

Python is one of the most commonly used programming languages (top 3 according to IEEEスペクトラム研究). It was first released in 1991 and has since gained popularity for being simple to learn, yet powerful in solving problems. The syntax is similar to C++ family yet equipped with a variety of modern solutions.

Curious to see how much a Python developer earns?– Read more

ビジュアルベーシック.NET

is a multi-paradigm, object-oriented programming language implemented on the .NET Framework. Microsoft launched VB.NET in 2002 as the successor to its original Visual Basic language. Although the “.NET” portion of the name was dropped in 2005, “Visual Basic [.NET]” is used to refer to all Visual Basic languages releases since 2002 in order to distinguish between them and the classic Visual Basic. Along with Visual C#, it is one of the two main languages targeting the .NET framework.

ピーエッチピーエス

PHP (Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. PHP 

Photo by Ben Griffiths に於いて アンスプラッシュ

JavaScript

ソースは wikicommons

JavaScript is a high-level, prototype-based, untyped, dynamic language. Depending on the environment, JavaScript can be interpreted or compiled. It is a multi-paradigm programming language, supporting object-oriented, imperative, and functional programming styles.

続きを読む How to screen JavaScript developer skills

パール

ソースは Logosrated

The Perl programming language is a general-purpose Unix scripting language to make report processing easier. It was originally developed by Larry Wall in 1987. Since then, it has undergone many changes and revisions. Perl 6, which began as a redesign of Perl 5 in 2000, eventually evolved into a separate language. Both languages continue to be developed independently by different development teams and they liberally borrow ideas from one another.

ルビー

Source : easyredmine

ルビー is a dynamic, reflective, object-oriented, general-purpose programming language. It was designed and developed in the mid-1990s by Yukihiro “Matz” Matsumoto in Japan. According to its creator, Ruby was influenced by Perl, Smalltalk, Eiffel, Ada, and Lisp.

スウィフト

スウィフト is a general-purpose, multi-paradigm compiled programming language developed by Apple Inc. for iOS, macOS, watchOS, tvOS, and Linux.

R

R is an open-source programming language and software environment for statistical computing and graphics. It is widely used among statisticians and data miners for developing statistical software and data analysis.

御出でなさい

御出でなさい (often referred to as ゴラン) is a free and open-source programming language created by Google.

目的別C

ソースは Seeklogo

目的C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. It was the main programming language used by Apple for the OS X and アイオーエス operating systems, and their respective application programming interfaces (APIs) Cocoa and Cocoa Touch prior to the introduction of Swift.

エスエッチエル

ソースは Wikicommons

SQL is the most popular database programming language. Historically, this declarative programming paradigm has been a key feature for ad-hoc queries run for data introspection executed by human users directly with SQL (rather than with a UI). In modern times, SQL is also embedded in other, more general-purpose programming languages like Java in order to access data from central databases.

続きを読む How to screen SQL developer skills

スカラ

Scala is a general-purpose programming language providing support for functional programming and a strong static type system. Designed to be concise, many of Scala’s design decisions are aimed to address criticisms of Java.

アンドロイド

アンドロイド world’s most popular operating system (it’s not a programming language) dedicated mainly to mobile devices. The source code was developed by Google under the Android Open Source Project (AOSP). Subsequent versions are usually released annually and are announced at Google I/O conferences.

読んでください。 How to screen Android developer skills

データベースIT用語

データベース

は、ソフトウェアによって保存され、使用される情報の集合体であり、簡単に管理できるように整理されています。従来のデータベースは、フィールド、レコード、ファイルで構成されています。

リレーショナルデータベース

is a database organized with the relational model. Relationships are a logical connection between different tables established on the basis of interaction among these tables. All relational databases use SQL (Structured Query Language) to operate on data (insert, update, load). It looks like a spreadsheet. Examples: Oracle, MySQL, Postgres, SQL Server.

ノSQLデータベース

非リレーショナルデータベース、または非SQLデータベース。リレーショナルデータベースとは異なり、キー値コレクション、マルチレベル構造、グラフなど、表形式のデータ以外の形式を使用します。このようなデータベースは通常、性能、スケーラビリティ、スキーマ設計の柔軟性のために選択されます。

CAPの定理

states that it is impossible for a distributed data store to simultaneously provide more than two out of the following three guarantees: consistency (every read receives the most recent write or an error), availability (every request receives a non-error response without the guarantee that it contains the most recent write) and partition tolerance (the system continues to operate despite an arbitrary number of messages being dropped or delayed by the network between nodes). In other words, CAP theorem states that in the presence of a network partition, one has to choose between consistency and availability.

is an acronym consisting of the IT terms Atomicity, Consistency, Isolation, Durability. They are a set of properties related to the database engines guaranteeing after finishing modification data will be consistent.

ユーザーインターフェースIT用語

GUI/UI

或いは "グラフィカル・ユーザー・インターフェース" は、ソフトウェアやウェブサイトの視覚的な部分で、ユーザーがアプリケーションと対話することを可能にします。アプリケーションを使用するたびに、GUIをクリックして使用します。

レスポンシブデザイン

は、私たちがアクセスするために使用する電話、PC、またはタブレットのようなすべての可能なデバイス上でアプリケーションのインターフェイスを良好に表示する責任があります。

シーエスエス

(Cascading Style Sheets) is a method of assigning formatting rules to an HTML page which allows the content and presentation of a website to be separated. This separation gives web developers the ability to instantly change the appearance of a specific HTML element, like position, colors, fonts, etc., throughout an entire website.

材料設計

is Google’s conceptual design philosophy that outlines how apps should look and work. It breaks down everything from animation, style to layout and gives guidance on patterns, components, and usability.

ブートストラップ

is a free open-source front-end web framework for designing websites and web applications. It makes it very easy to create web pages by empowering designers to select from a large collection of pre-built elements, behaviors, and shortcuts. The aim is to unify design and allow both non-technical and technical designers to improve the quality of their design.

IT用語のテスト

ユニットテスト

とは、アプリケーションの最小のテスト可能な部分(ユニットと呼ばれる)を個別に独立してチェックし、成功するかどうかを確認するソフトウェア開発プロセスのことです。最も人気のあるライブラリは以下の通りです。JUnit, Mocha, NUnit, RSpec.

統合テスト

Integration tests are a level of software testing where individual units are combined and tested as a group. These tests are performed in order to expose defects in the interface and in interactions between integrated components or systems. It occurs after unit testing and before validation testing.

受入試験

Acceptance tests are a level of software testing where a system is tested for acceptability. The purpose of this test is to evaluate the system’s compliance with business requirements, user needs, and business processes. Acceptance tests determine if a system satisfies the acceptance criteria and to enable the user, customers or other authorized entity to determine whether or not to accept the system. Read more: ソフトウェアテストの基礎

パフォーマンステスト

Performance tests are a type of software testing that intends to determine how a system performs in terms of responsiveness and stability under a certain workload (usually under stress). Read more: ソフトウェアテストの基礎

開発ツールとプロセスのIT用語

バージョン管理システム

is the management of changes to documents, computer programs, large websites, and other collections of information. Changes are usually identified by number or letter code, called a “revision number,” “revision level,” or simply “revision.” For example, an initial set of files is “revision 1.” When the first change is made, the resulting set is “revision 2,” and so on. Each revision is associated with a timestamp and the person making the change. Revisions can be compared, restored, and with some types of files, merged.

Subversion (svn)

はもう一つの人気のあるオープンソースのバージョン管理システムです。とは対照的に Gitを使っています。 は、すべての開発者が1つの集中リポジトリを使用しています。続きを読む Subversionによるバージョン管理

ギット

ギット is a free open source distributed version control system for tracking changes in computer files and coordinating work on those files among multiple people. It is primarily used for source code management in software development, but it can be used to keep track of changes in any set of files.

コミット

In version control systems, a commit is a saved change made to the source code.  Commits are usually added/deleted files or directories, changed file contents, etc.

トランクベース開発

は、1日に数回、すべての開発者の作業コピーを共有メインラインにマージする習慣です。続きを読む トランクベース開発

ギットハブ

ギットハブ is a popular Git hosting service. It is mostly used for code. In addition to Git, it provides several collaboration features, important IT terms such as bug tracking, feature requests, task management and wikis.

ソースは Roman Synkevych に於いて アンスプラッシュ

ギットラボ

ソースは ウィキメディア

GitLab.com is a Git repository hosting that provides wikis and issue tracking functionality. It’s an open-source project developed by GitLab Inc.

ビットバケット

Bitbucket.org is a Git and Mercurial repository hosting service owned by Atlassian. Like its counterparts, it provides several collaboration features such as issue tracking and wikis.

アイディーイーイー

アイディーイーイー (Integrated Development Environment) is a code editor application designed to help programmers write, run, and debug code. Examples of IDEs include Eclipse, IntelliJ IDEA, Visual Studio, PHP Storm

ビルドツール

Build tools are used to convert programming code written by the developer into binary code that is executable by a computer and run it. It usually manages external dependencies (libraries or frameworks) which are used in the project. Examples: Gradle, Maven, Rake, MSBuild, Phing.

オートメーションサーバー(Jenkins、Bamboo、TeamCityなど

An automation server helps automate the non-human part of the software development process with continuous integration and facilitating technical aspects of continuous delivery.

継続的インテグレーション

Continuous integration—an extension of Trunk Based Development practice—where each integration is verified by automated tools and tested to give fast feedback and detect errors as fast as possible. Read more: マーティン・ファウラー

継続的配信

is a software engineering approach in which teams produce software in short cycles, ensuring that it can be reliably released at any time. This means the deployment package is prepared and automatically tested continuously (e.g. once per day) and ready to ship to production.

継続的な展開

Continuous deployment is similar to continuous delivery but ends up with the package being deployed to production instead of just ready to be deployed.

展開

とは、新しいソフトウェアパッケージのバージョンをターゲット環境にプッシュすることを意味します。

特徴

is a distinguishing characteristic of a software item (e.g., performance, portability, or functionality).

リリース

バージョンパッケージ(機能)をエンドユーザーが利用できるようにすること。

展開パイプライン

は、アプリケーションを本番環境に展開する前に完了しなければならない一連のステージを定義します。デプロイのライフサイクルを段階に分けることで、通常は余分な時間を犠牲にしてでも、信頼性を高めることができます。初期の段階ではほとんどの問題が明らかになり、より迅速なフィードバックが得られますが、後期の段階では、よりゆっくりと、より徹底的な調査が可能になります。ステージには、ビルド、デプロイ、テスト、アーカイブなどを含めることができます。続きを読む マーティン・ファウラー

チケット/問題/インシデント

は、問題追跡システム内の特定の問題、そのステータス、およびその他の関連データに関する実行中のレポートです。これらは一般的にヘルプデスクやコールセンターの環境で作成され、ほとんどの場合、固有の参照番号を持っています。 一件, 問題。 或いは コールログ number. This number is used to allow the user or help staff to quickly locate, add to or communicate the status of the user’s issue or request.

アーキテクチャのIT用語

建築

Architecture is a term applied to both the process and the outcome of thinking out and specifying the overall structure, logical components, and logical interrelationships of a computer, its operating system, and network. Read more: WhatIs.com

API

(Application Programming Interface) is a set of definitions, protocols, schemas, tools, and practices to communicate with the application. To developers, API is what Graphical User Interface is to users. It allows developers (and finally other applications) to communicate with applications.

REST

Source : Restfulapi.net

REST (Representational State Transfer) is a set of guidelines for building web services providing interoperability between remote computers. It is focused on resources and basic operations (like editing, reading, and adding) related to them. They are commonly used to expose public API.

SOAP

Simple Object Access Protocol is a way of exchanging structured information between computers. Compared to REST, it’s more formal, less flexible, and requires schema definition (WSDL).

モノリス

は、単一のアプリケーションレイヤー上での動作を基本としたアーキテクチャスタイルで、アーキテクチャが必要とする機能をすべて束ねてしまう傾向があります。簡単に言えば、それは、すべてが一体となって構成されていることを意味します。モノリシックソフトウェアは、自己完結型であるように設計されています。プログラムのコンポーネントは、モジュラーソフトウェアプログラムのように緩く結合されているのではなく、相互に接続され、相互に依存しています。さらに、プログラムのコンポーネントを更新しなければならない場合は、アプリケーション全体を書き換えなければなりませんが、モジュール型アプリケーションでは、プログラムの他の部分に影響を与えることなく、モジュール(マイクロサービスなど)を変更することができます。続きを読む WhatIs.com

分散型システム

は、ネットワーク化されたコンピュータ上に位置するコンポーネントが通信し、メッセージを渡すことによって、そのアクションを調整するモデルであり、単一の首尾一貫したシステムとしてユーザーに表示されます。コンポーネントは、共通の目標を達成するために相互に作用します。分散システムの3つの重要な特徴は次のとおりです:コンポーネントの同時実行性、グローバルクロックの欠如、およびコンポーネントの独立した障害。

サービス指向アーキテクチャ

SOA is a style of software design based on discrete software components (services) that collectively provide functionalities of larger software architecture. A service is a discrete unit of functionality that can be accessed remotely and acted upon and updated independently, such as retrieving a credit card statement online. In this approach, services are provided to other components by application components, through a communication protocol over a network.

Basic principles of service-oriented architecture are independent of vendors, products, and technologies. Service-oriented architecture has been mainly been used and focused on a big enterprise scale.

マイクロサービス

Microservices are a variant of the service-oriented architecture (SOA) architectural style. The idea behind microservices is that some types of applications become easier to build and maintain when they are broken down into smaller, composable pieces which work together. Each component is autonomous, developed separately, and the application is then simply the sum of its constituent components. This is in contrast to a traditional, “monolithic” application developed in one piece.

The Microservices style is used by many organizations (like Netflix, Uber, and Facebook) today as a game-changer to achieve a high degree of agility, speed of delivery, and scale. Read more: マーティン・ファウラー

クラッド

CRUD is actually an acronym of Create, Read, Update, Delete. It describes a type of applications focused on simple data editing without any rich business operations. Colloquially called “database viewers.”

インフラIT用語

インフラストラクチャー

エンタープライズIT環境の存在、運用、管理に必要なハードウェア、ソフトウェア、ネットワークリソース、およびサービスの複合体を指します。これにより、組織は従業員、パートナー、顧客にITソリューションとサービスを提供することができ、通常は組織の内部にあり、所有する施設内に配置されています。

クラウドサービス

A cloud service is any service made available to users on-demand via the Internet from a cloud computing provider’s servers (i.g Microsoft Azure or Amazon Web Services) as opposed to being provided from physical on-premises servers.

ソフトウェア・アズ・ア・サービス(SaaS

SaaS sometimes referred to as ‘on-demand software, is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted. It is the most familiar form of cloud service for consumers. SaaS providers make the application available to users through the Internet, usually a browser-based interface. Customers can then enjoy the software without having to worry about development, maintenance, support, update, or backups.

The downside, however, is that your software experience is wholly dependent on the SaaS provider, which is responsible for stability, reporting, billing, and security. Well-known examples of some SaaS companies services are Gmail, Dropbox, Salesforce, and Netflix.

プラットフォーム・アズ・ア・サービス(PaaS)

PaaS is a category of cloud computing services that functions at a lower level than SaaS, typically providing a platform on which software can be developed and deployed. PaaS providers abstract much of the work of dealing with servers and give clients an environment in which the operating system and server software, as well as the underlying server hardware and network infrastructure, are taken care of. This leaves users free to focus on the business side of scalability, and the application development of their product or service. It allows customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.

PaaS makes the development, testing, and deployment of applications quick, simple, and cost-effective. some PaaS examples include Pivotal Cloud Foundry and Heroku.

インフラストラクチャ・アズ・ア・サービス(IaaS)

IaaS is the most basic cloud-service model offering computing infrastructure – IT terms like virtual machines and other resources – as a service to subscribers. It’s a lower level compared to PaaS. Typically, IaaS provides hardware, storage, servers, and data center space or network components. It allows you to quickly scale up and down with demand and pay only for what you use. This makes IaaS well-suited for workloads that are temporary, experimental or change unexpectedly. IaaS examples: Amazon Web Services and its EC2.

オートメーション

ITオートメーションとは、異種のシステムやソフトウェアを、自作自演や自主規制になるようにリンクさせることです。続きを読む テックターゲットドットコム

コードとしてのインフラ (IaC)

IaC (programmable infrastructure), means writing code (which can be done using a high-level language or any descriptive language) to manage configurations and automate the provisioning of infrastructure in addition to deployments. IaC is not only about writing scripts, it also involves using tested and proven software development practices that are already being used in application development, e.g. version control, testing, small deployments, use of design patterns etc. In short, this means you write code to provision and manage your server, in addition to automating processes. It’s an approach to managing IT infrastructure for the age of cloud, microservices, and continuous delivery. Read more: ThoughtWorks

コンテナ

アプリケーションとその依存関係、ライブラリ、その他のバイナリ、およびその実行に必要な設定ファイルが一つのパッケージにまとめられています。コンテナは、あるコンピューティング環境から別のコンピューティング環境に移動したときに、ソフトウェアが確実に動作するようにするにはどうすればよいかという問題に対するソリューションです。これは、開発者のラップトップからテスト環境へ、ステージング環境から本番環境へ、そしておそらくデータセンターの物理マシンからプライベートクラウドやパブリッククラウドの仮想マシンへ、ということが考えられます。詳細はこちらをご覧ください。 CIO

オペレーティングシステム

は、コンピュータのハードウェアを管理するシステムソフトウェアであり ソフトウェア resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. Examples: Microsoft Windows, macOS, Linux.

シェル

is an interface that enables the user to interact with a computer. It provides a user interface for access to an operating system’s services. In general, operating system shells use either a command-line interface (CLI) or graphical user interface (GUI), depending on a computer’s role and particular operation. The name comes from the fact that shells are layers around the operating system kernel.

メートル

プログラムのパフォーマンスまたは効率性の特定の特性の測定。

ログ

は何が起こったかの記録です。一般的に、問題を診断したり、アプリケーションのライフサイクルで何が起こっているかについての特定の洞察を得るのに役立ちます。

シェアポスト

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