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Business Impact Analysis

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Once your BCP team completes the four stages of preparing to create a business continuity plan, it's time to dive into the heart of the work—the business impact analysis (BIA). The BIA identifies the business processes and tasks that are critical to an organization's ongoing viability and the threats posed to those resources. It also assesses the likelihood that each threat will occur and the impact those occurrences will have on the business. The results of the BIA provide you with quantitative measures that can help you prioritize the commitment of business continuity resources to the various local, regional, and global risk exposures facing your organization.

It's important to realize that there are two different types of analyses that business planners use when facing a decision:

 Quantitative Impact Assessment Involves the use of numbers and formulas to reach a decision. This type of data often expresses options in terms of the dollar value to the business.

 Qualitative Impact Assessment Takes non-numerical factors, such as reputation, investor/customer confidence, workforce stability, and other concerns, into account. This type of data often results in categories of prioritization (such as high, medium, and low).

Quantitative analysis and qualitative assessment both play an essential role in the BCP process. However, most people tend to favor one type of analysis over the other. When selecting the individual members of the BCP team, try to achieve a balance between people who prefer each strategy. This approach helps develop a well-rounded BCP and will benefit the organization in the long run.

The BIA process described in this chapter approaches the problem from both quantitative and qualitative points of view. However, it's tempting for a BCP team to “go with the numbers” and perform a quantitative assessment while neglecting the somewhat more subjective qualitative assessment. The BCP team should perform a qualitative analysis of the factors affecting your BCP process. For example, if your business is highly dependent on a few important clients, your management team is probably willing to suffer a significant short-term financial loss to retain those clients in the long term. The BCP team must sit down and discuss (preferably with the involvement of senior management) qualitative concerns to develop a comprehensive approach that satisfies all stakeholders.

As you work your way through the BIA process, you will find that it is quite similar to the risk assessment process covered in Chapter 2, “Personnel Security and Risk Management Concepts.” The techniques used are very similar because both use standard risk evaluation techniques. The major difference is that the risk assessment process is focused on individual assets, whereas the BCP focuses on business processes and tasks.

(ISC)2 CISSP Certified Information Systems Security Professional Official Study Guide

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