1?Paul Sorenson

1
REQUIREMENTS FOR ASPiCE ASSESSMENT

• A set of defined input information has to
• be prepared before the assessment.

• Assessment has to be against a model that is
• compatible with the SPICE reference model.
• The model has to provide indicators to guide
  the
• assessor in rating the processes of the
  reference
• model.

• The assessment results, the process ratings,
  have to be justified objective evidence of
  the existence
• of the indicators in the assessment model.

2
SPiCE Reference Model

• Two-dimensional model

Capability Levels (process attributes)
Process Categories - processes
3
SPiCE . . . Process Descriptors
See page 25 - example for ENG.2

• Purpose statement The purpose of the Develop
  Software Requirements process is to establish
  the requirements of the software component of
  the system.

• A list of outcomes achieved The
  requirements allocated to software components
  of the system and their interfaces will be
  defined to match the customers stated and
  implied needs

4
SPiCE . . . Process Descriptors

• Notes providing further information This
  process is identical in scope to Activity 4 of
  the Development Process, one of the Primary
  Life Cycle Processes in ISO 12207.

5
SPiCE . . . Capability Levels
CMM
6
SPiCE . . . Compatible Assessment Model

• Model purpose - for process assessment.
• Model scope - a subset of the process
  dimension and a continuous subset of the
  levels of the capability dimension.
• Mapping - elements of the model are mapped to
  the elements of the SPICE reference model.
• Translation - the mechanism for converting
  the data collected against the assessment
  model into the SPICE rating scheme.

7
SPiCE . . . Assessment Hierarchy
Process Category 5
Assess
Determine
8
SPiCE . . . Process Attributes
The capability model is based on nine process
attributes (one at level 1 and two at levels 2 to
5)
Level 5 5.1 Process Change
5.2 Continuous Improvement Level 4
4.1 Process Measurement
4.2 Process Control Level 3 3.1
Process Definition 3.2
Process ResourceLevel 2 2.1
Performance Management 2.2
Work Product Management Level 1 1.1
Process Performance
9
SPiCE . . . Process Indicators

• Indicators - are used to support the assessors
  judgement in rating process attributes.
  Generally there are process performance
  indicators and process management
  indicators.
• Objective evidence - based on the indicators,
  must be documented to justify assessment
  ratings
• Example indicators - work products, practices,
  records, reports.

10
SPiCE . . . Assessment Instruments

• Checklists

• Questionnaires
• Database Tools
• Expert System Tools

11
SPiCE . . . Assessment Process

• Each process in the assessment scope is
  assessed by examining one or more process
  instances (e.g. each time the code for a new
  software product is written, a process instance
  of an implemented software design is created.)
• The assessment process is based on the set of
  process instances selected that satisfy the
  purpose and scope of the assessment.

12
SPiCE . . . Assessment Indicators
Assessment Indicators
13
SPiCE . . . StandardVersion 2
Capability
Process
determination
improvement
Part 8
Part 7
Process
assessment
Indicators
Indicators
Part 5
Compatibility
Model
Method
Requirements
Qualified
Part 2
Guidance
Guidance
assessor
Reference
Part 4
Model
Part 6
14
SPiCE . . . Process
Improvement Steps