The Agile Safety Case

Thor Myklebust, Tor Stålhane

  • 出版商: Springer
  • 出版日期: 2018-02-07
  • 定價: $1,820
  • 售價: 9.0$1,638
  • 語言: 英文
  • 頁數: 235
  • 裝訂: Hardcover
  • ISBN: 3319702645
  • ISBN-13: 9783319702643
  • 相關分類: Agile Software
  • 立即出貨 (庫存=1)

商品描述

The safety case (SC) is one of the railway industry’s most important deliverables for creating confidence in their systems. This is the first book on how to write an SC, based on the standard EN 50129:2003. Experience has shown that preparing and understanding an SC is difficult and time consuming, and as such the book provides insights that enhance the training for writing an SC.

The book discusses both "regular" safety cases and agile safety cases, which avoid too much documentation, improve communication between the stakeholders, allow quicker approval of the system, and  which are important in the light of rapidly changing technology. In addition, it discusses the necessity of frequently updating software due to market requirements, changes in requirements and increased cyber-security threats.

After a general introduction to SCs and agile thinking in chapter 1, chapter 2 describes the majority of the roles that are relevant when developing railway-signaling systems. Next, chapter 3 provides information related to the assessment of signaling systems, to certifications based on IEC 61508 and to the authorization of signaling systems. Chapter 4 then explains how an agile safety plan satisfying the requirements given in EN 50126-1:1999 can be developed, while chapter 5 provides a brief introduction to safety case patterns and notations. Lastly, chapter 6 combines all this and describes how an (agile) SC can be developed and what it should include.

To ensure that infrastructure managers, suppliers, consultants and others can take full advantage of the agile mind-set, the book includes concrete examples and presents relevant agile practices. Although the scope of the book is limited to signaling systems, the basic foundations for (agile) SCs are clearly described so that they can also be applied in other cases.

商品描述(中文翻譯)

安全案例(SC)是鐵路行業中最重要的交付成果之一,用於建立對其系統的信心。這是第一本根據標準EN 50129:2003撰寫SC的書籍。經驗表明,準備和理解SC是困難且耗時的,因此本書提供了增強撰寫SC培訓的見解。

本書討論了“常規”安全案例和敏捷安全案例,後者避免了過多的文檔,改善了利益相關者之間的溝通,加快了系統的批准,並且在技術迅速變化的情況下非常重要。此外,本書還討論了由於市場需求、需求變化和增加的網絡安全威脅而需要經常更新軟件的必要性。

第1章對SC和敏捷思維進行了一般介紹,第2章描述了開發鐵路信號系統時相關的大部分角色。接下來,第3章提供了與信號系統評估、基於IEC 61508的認證和信號系統授權相關的信息。然後,第4章解釋了如何開發滿足EN 50126-1:1999中要求的敏捷安全計劃,而第5章簡要介紹了安全案例模式和符號。最後,第6章將所有這些內容結合起來,描述了如何開發(敏捷)SC以及其應包含的內容。

為了確保基礎設施管理者、供應商、顧問和其他人能充分利用敏捷思維,本書提供了具體的示例並介紹了相關的敏捷實踐。儘管本書的範圍僅限於信號系統,但基於(敏捷)SC的基本基礎被清楚地描述,因此它們也可以應用於其他情況。