Product / Service CharacteristicsFeaturesQuality is the totality of features and characteristics of a Product or Service that bear on its ability to satisfy stated needsSatisfy needs?YesQuality Product/Service Not QualityProduct / Service NoAccording to ISO 8402:

According to the previous definition of QualityNo such thing named Process Quality!!!!

Reason:Product is tangibleBut Process is intangible

The process has to be made tangible

Base the process on a Standard or ModelThe standard/model conformance may be assessedBut How?

Every activity in an organization has a defined start and finish.Start time and Finish time cab be measuredThe process evolution is as good as the underlying model used

Various Organization have tried to provide the model for process

International Standards Organization : ISO 9001Software Engineering Institute: Capability Maturity Model (CMM)

Europe ISO 9001United States Capability Maturity ModelExample:Example

The achievement of high qualityAdequate predefined production processQuality Management Standard

Depend on QMSDepend on processThe attempt of Standard is to ensure the capability and commitment of organizations to produce high quality.

The leading international QMS for software development is the ISOs generic Quality System system series of standard

The series is ISO 9000-9004

ISO 9000 series normally means ISO 9001

InputInformationDataMeasureVerify/AuditWork & ImproviseImplementAdaptationKnowledgeOutputPDCA (PLAN, DO, CHECK, ACT) cycle

ISO 9000-3 provides the guideline for the application of ISO 9001 to theDevelopment SupplyMaintenance of SoftwareOther supporting activities

To do this ISO 9000-3 includes subsection onManagementQuality SystemInternal AuditsCorrective Actions

A number of plan required by the standardA development planA quality planA test planA maintenance plan

Configuration ManagementDocument ControlMaintenance of Quality RecordsProcess and Product MeasurementAdoption of rules, practices and conventionsUse of tools and techniquesPurchasingProcedures for included softwareTraining

TickIT ProjectTickIT project fully reproduce the ISO 9000-3TickIT is about improving the quality ofSoftwareits application

The purpose of TickIT is to stimulate developers to think about:What quality really is in the context of the processes for software development?How quality may be achievedHow QMS may be continuously improved

ISO was designed for 2 partiesPurchaserSupplier

ISO also used to assess the production process nowadays

The use of ISO 9001 inevitably leads to the manufacture of quality products.

PurchaserSupplierISO 9001

QMS do not rigidly define the development processTheir successful implementation is dependant onStrict adherenceGood workmanshipProgramming practicesCoding guidelinesGUI standardetc.

For evaluating product quality through certification dependent on availability of a process certification

Influenced byProduct CertificatesWidely RecognizedProcess Certificates

Example:An organization may make unwilling to decide for product certification for every product because.

Process certificate is cheap and available

Process certificate may cover a number of software

Process certificate may reduce the certification costs of different releases of the same product

Product certificate for each product is costly

The SEI is a federally funded R&D laboratory based on Carnegie Mellon University, USA

It has developed a model for software development process named Capability Maturity Model (CMM)

The model is used as the basis for process improvement and evaluation

All documents relating to this can be download from http://www.sei.cmu.edu

Capability Maturity Model

Capability Maturity Model

Maturity LevelQuantitatively ManagedOptimizingDefinedManagedInitial12345Processes are unpredictable, poorly controlled & reactiveProcesses are characterized for projects and actions are often reactiveProcesses are characterized for the organization and is proactiveProcesses are both measured and controlledProcesses improvement is a continuous focus

1. Commitment to perform 2. Ability to perform 3. Activities to perform 4. Measurement and Analysis 5. Verifying implementation Key Process FeaturesThe practices that describe key process are grouped into the following common features

For more information about CMMGo to CMM Websitehttp://www.sei.cmu.edu/cmmi/http://seir.sei.cmu.edu/Contact SEI Customer RelationsCustomer Relation Software Engineering InstituteCarnegie Mellon UniversityPittsburg, PA 15213-3890FAX: (412) 268-5800

relations@sei.cmu.edu

ConclusionIn this presentation, we have given insight into Product Quality compare to Process Quality.

Because, This is the foundation for discussion software metrics and measurement.

If an assessment of the development process is to be a factor of evaluation and certification of a software then

We need to establish some quantitative criteria as to the value of process in relation to the product qualityHowever, to the best of authors knowledge, no such direct relationship exists.

It is assume that a well managed and disciplined software development process leads to a superior quality product

In practical, in industry, a good process does not provide any guarantee of quality. Especially If the process does not enforce good workmanship or adherence to well-defined software development standard.

On the other hand, it is also true that a bad process is likely to endanger good product quality. For example,Lack of well defined and practiced process for peer review and inspection

IntroductionSoftware System EvolutionProduct Quality Software Attributes Classification of Software Application Attributes Models for Software Product Quality McCalls Factor-Criteria-Metric Model The ISO 9126 Standard Quality Model Other Model for Software Product Quality Process Quality ISO 9001 Quality Management for Process Quality Framework Role of ISO 9001 in Evaluation of a software product Maturity Models for Process QualitySummery

Thank You