1 Scope
This International Standard is one of the SQuaRE series of International Standards,
which contains general requirements for specification and evaluation of systems and
software quality and clarifies the associated general concepts. SQuaRE provides a
framework for evaluating the quality of software products and states the requirements
for methods of software product measurement and evaluation.
This International Standard uses a methodology involving two types of evaluation for
recoverability. One part of the method makes use of the disturbance injection methodology and a list of disturbances based on common categories of operational faults and events to evaluate the quality
measure of resiliency. The second quality measure is based on a set of questions that
is defined for each disturbance to evaluate the quality measure of autonomic recovery index by assessing how well
the system detects, analyses, and resolves the disturbance without human intervention.
This International Standard is applicable to information systems executing transactions
in a system supporting single or multiple concurrent users, where speedy recovery
and ease of managing recovery is important to the acquirer, owner/operator, and the
developer.
1.1 Characteristics
This evaluation module measures the quality measures defined under the following characteristic
and sub-characteristics of the quality model as defined in ISO/IEC 9126‑1:2001.
NOTE The reference to ISO/IEC 9126‑1 will be replaced by a reference to ISO/IEC 25010 when published.
Characteristic – Reliability
-
Sub-characteristic – Recoverability
-
Quality measure – Resiliency
-
Quality measure – Autonomic recovery index