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1 Title/current version of ASL® books
ASL®2 (Application Services Library)

2 The basics of ASL® Books
ASL (Application Services Library) is a framework and
collection of best practices for application management.

3 ASL® Books summary 
ASL (Application Services Library) was developed by a Dutch IT
service provider, PinkRoccade, in the 1990s and was made public
in 2001. Since 2002 the framework and the accompanying best
practices have been maintained by the ASL BiSL Foundation.
The current version is ASL2, published in the Netherlands in

ASL is concerned with managing the support, maintenance,
renewal and strategy of applications in an economically sound
manner. The library consists of a framework, best practices,
standard templates and a self-assessment. The ASL framework
provides descriptions of all the processes that are needed for
application management.

The framework distinguishes six process clusters, which are
viewed at operational, managing and strategic levels see Figure.

The application support cluster at the operational level aims to
ensure that the current applications are used in the most effective
way to support the business processes, using a minimum of
resources and leading to a minimum of operational disruptions.
The application maintenance and renewal cluster ensures that
the applications are modified in line with changing requirements,
usually as a result of changes in the business processes, keeping
the applications up-to-date. The connecting processes form
the bridge between the service organization cluster and the
development and maintenance cluster.

The ASL framework

The management processes ensure that the operational clusters
are managed in an integrated way.

Finally, there are two clusters at the strategic level. The aim of the
application strategy cluster is to address the long-term strategy
for the application(s). The processes needed for the long-term
strategy for the application management organization are
described in th application management organization strategy

4 Target audience of ASL® Books
The target audience for ASL consists of everyone who is involved
in the development and management of applications: application
support personnel, application architects and designers,
programmers, testers, and managers with responsibility for
application development or application management.

5 ASL® Books scope and constraints
The scope of ASL is the support, maintenance, renewal, and
strategy of applications, and the management of all related

• It offers a common language and conceptual framework for
application management (maintenance and support)
• It provides an overview of all the activities (from operational
to strategic) that are needed to keep applications up-to-date
with the changing needs of the organization
• It is usable in various organizations
• It is owned and supported by a not-for-profit, vendor-
independent foundation with participation by a wide range of

• ASL overlaps partially with other IT Service Management

6 Relevant website of ASL® Books


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