ISO/TS 22317:2015 社会的セキュリティ—ビジネス継続性管理システム—ビジネス影響分析（BIA）のガイドライン | ページ 2

Foreword

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The committee responsible for this document is ISO/TC 292, Security and resilience.

Introduction

This Technical Specification provides detailed guidance for establishing, implementing, and maintaining a business impact analysis (BIA) process consistent with the requirements in ISO 22301. This Technical Specification is applicable to the performance of any BIA process, whether part of a business continuity management system (BCMS) or business continuity programme (BC programme). Hereinafter, BC programme means either BCMS or BC programme.

Figure 1 notes the relationship of the BIA process to the BC programme as a whole. The organization should complete a cycle of the BIA process before business continuity strategies are selected.

The BIA process analyses the consequences of a disruptive incident on the organization. The outcome is a statement and justification of business continuity requirements.

The BIA process consists of a number of individual BIAs, each focusing of a sub-set of the BC programme scope. The BIA process prioritizes products and services, and continues with prioritizing processes and activities that together cover the entire scope of the BC programme. After a period of time determined by the organization, individual BIAs are repeated to ensure that the BC requirements remain current.

The purposes of this Technical Specification are the following:

• provide a basis for understanding, developing, implementing, reviewing, maintaining, and continually improving an effective BIA process within an organization;
• provide guidance for planning, conducting, and reporting on a BIA;
• assist the organization with conducting a BIA in a consistent manner that reflects good practices;
• enable proper coordination between the BIA process and the overarching BC programme.

The outcomes of the BIA process include the following:

• endorsement or modification of the organization’s BC programme scope;
• identification of legal, regulatory, and contractual requirements (obligations) and their effect on business continuity requirements;
• evaluation of impacts on the organization over time, which serves as the justification for business continuity requirements (time and capability);
• identification and confirmation of product/service delivery requirements following a disruptive incident, which then sets the prioritized timeframes for activities and resources;
• identification and establishment of the relationships between products/services, processes, activities, and resources;
• determination of the resources needed to perform prioritized activities (e.g. facilities; people; equipment; information, communication and technology assets; supplies; and financing);
• understanding of the dependencies on other activities, supply chains, partners, and other interested parties;
• determination of how up to date the information needs to be.

The following diagram displays the BIA process, together with prerequisites and its relationship to strategy identification. The clauses referenced in the diagram are subsections of this Technical Specification.

1 Scope

This Technical Specification provides guidance for an organization to establish, implement, and maintain a formal and documented business impact analysis (BIA) process. This Technical Specification does not prescribe a uniform process for performing a BIA, but will assist an organization to design a BIA process that is appropriate to its needs.

This Technical Specification is applicable to all organizations regardless of type, size, and nature, whether in the private, public, or not-for-profit sectors. The guidance can be adapted to the needs, objectives, resources, and constraints of the organization.

It is intended for use by those responsible for the BIA process.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions in ISO 22300 apply.

Bibliography