Improving LSPCM Applying LSPCM to High Level Design for

outsourcing projects.

By

Nishanth S. Shetty

Swaraj S.Bhat

Contents

• Introduction• Certification• Offshore projects• LSPCM• Research Objectives• Specific criteria for HLD• Deliverables & Timeline

Research objectives11/18/2009 PAGE 2/ SET Seminar

Introduction

• Software project failure:

• Customer requirements not met.• Delivery deadline not met.• Actual cost higher than estimated cost.• Too many errors.

• Statistical facts: The Standish group reported in 2003 • 34% computer projects succeeded • 27% experienced cost overrun of over 20%, • 15% failed altogether.

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Introduction

• Software Certification can be used to prevent these failures and to improve the quality of the software product.

• “Certification is a process of confirming

that a system or a component complies

with its specified requirements and

is acceptable for operational use.”− IEEE Computer Society. IEEE Std 829-1998. IEEE Standard for Software Test

Documentation 1998

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Certification

• Benefits of certification:

• Helps to obtain certainty and confidence in software artifacts.

• Offers an advantage over the competition.

• Gives more confidence to the prospective buyers.

• In outsourcing projects, an independent party can determine that deliverables are acceptable.

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Certification for an Offshore project

• Outsourcing process is threatened by the missing context information at handover moments:

• Requirements• High level design• Source code• End system

• Certification at handover moments helps to achieve that documents are

− consistent − made in the right way.

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LSPCM

• LaQuSo Software Product Certification Model.

• A rule based software product certification model.

• Model consists of 6 product areas:• Context description• User requirements• High Level design (HLD)• Detailed design• Implementation• The tests

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LSPCM

• In order to analyze the artifacts LSPCM defines three Certification Criteria (CC) for all Product Areas:

• [CC1] Completeness – All required elements in the Product Area should be present.

• [CC2] Uniformity – The style of the elements in the Product Area should be standardized.

• [CC3] Conformance – All elements should conform to the property that is subject of the certification.

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Certification criteria achievement levels

CC1 Completeness

0 Some required elements are missing

1 All required elements are present

2 Semi-formal elements have been added

3 Formal elements have been added

CC2 Uniformity

0 No standardization

1 Within the product

2 Style complies to a company standard

3 Style complies to an industry standard

CC3 Conformance

0 Faults are detected

1 Manual review/testing has not detected any faults

2 Automated approach has not detected any faults

3 Formal verification has not detected any faults11/18/2009 PAGE 9/ SET Seminar

LSPCM – Certification Levels

• Initial

• Manually verified

• Automated verified • Model verified • Formally verified

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Objectives

• Improve LSPCM - Applying LSPCM 1.1 to the HLD of an offshore project.

• Scaling of certification and specific criteria for high level design.

• Incremental

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Process flow

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Specific criteria for High level design.

• [SC1] Complete:1. Required elements.

2. Semi-formal elements.

3. Formal elements.

• [SC2] Uniform:1. Uniformity within product area.

2. Compliance with company standard.

3. Compliance with industry standard.

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Specific criteria for High level design.

• [SC3] Conformance:1. Manual check.

2. Automated check.

3. Formal check.

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Issues

• Some issues common to all models in G with respect to HLD:

• Missing High-level documents such as− component model. − flowcharts.

According to an experimental comparison by D.A.Scanlon, it is considered very helpful to introduce flowcharts to describe process flow, as it increases comprehension of the program.

• Missing translation document.

• Ambiguous use cases.

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Deliverables

• Analysis report on model 2

• Analysis report on model 3

• Reports on interviews with project experts.

• List of suggestions what LSPCM criteria are of less importance and why.

• List of suggestions how LSPCM can be improved for outsourcing projects.

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Timeline

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Questions

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