July 2024
Beginner to intermediate
272 pages
5h 40m
Japanese
Content preview from アーキテクトの教科書 価値を生むソフトウェアのアーキテクチャ構築
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
093
3
にアプリケーション機能として実現し、使用性は主にUXやUIで実現す
ることになるため、アーキテクチャの観点では残り六つの品質特性を中
心に検討していけばよいでしょう。以下、それぞれを順に見ていきます。
性能効率性
性能効率性はシステムのパフォーマンスを表す品質特性で、処理の応
答時間やスループット（時間効率性）、システムリソースのサイズ（容量
満足性）などの品質副特性を持ちます。
これらの品質特性については、受託開発案件であればRFPに非機能
要求として明示されていることが多いでしょう。明示的に定義された非
機能要求として存在しない場合は、現行業務や現行システムのトランザ
クション量から見積もったり、ビジネスの今後の拡大計画から見積もっ
たりして必要な要求レベルを定めることになります。
同時トランザクション数が非常に多い、取り扱うデータ量が非常に多
いなど、技術的にリスクがある場合はアーキテクチャドライバの候補と
なります。リスクと捉えるかどうかは、アーキテクトや組織の過去の経
験にもよります。
互換性
互換性は、複数のシステムが他に影響を与えずに環境や資源を共有す
ることができるか（共存性）と、複数のシステム間の連携が適切に行え
るか（相互運用性）の二つの品質副特性を持ちます。
マイクロサービスのように複数のサブシステムから成り立つシステム
の場合、これらの品質特性はとても重要です。また、外部のシステムや
サービスとの連携要件に技術的なリスクが存在する場合もアーキテク
チャ上の考慮が必要となってきます。特に、トランザクションが複数の ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.