Configuration Management

Basic Level

Prepared By İrem KARTAL

İrem KARTALB.Sc. Bilkent University CTIS, 2003,Bilkent University, Project Manager, 2007

MilSOFT A.S CM Manager, 2005Havelsan A.S CM Manager, 2004MilSOFT A.S CM Specialist, 2003MilSOFT A.S CM Specialist Part-time, 2002TRT- System Admin - Part-time, 2001

Introduction

Subject: What is Configuration Management ?

Goals of the session :CM dicipline in SW/HW DevelopmentCM in Project ManagementCM in Software IndustryCarrier Planning for CM Specialist

Life Cycle

Overview

CONFIGURATION

MANAGEMENT PLAN

A

U

D

I

T

S

S

T

A

T

U

S

A

C

C

O

U

N

T

I

N

G

Configuration

Identification

Baseline

Definition

Configuration

Control

Approval

Yes

No

Identification of software items

to be controlled

Configuration record at a point

in time

Control of change and libraries

Criteria and authority as defined in

Configuration Management Plan

Specifies configuration items

CMP

Configuration Management Plan describes configuration activities to be performed during the product or project life cycle.

Identifies items to be place under CM control and the scope of the CM activities.

Identifies required resources (stuff, computer, tools, etc.).

Describes the CM and change control processes and procedures to be used.

CM Functions Configuration Identification

Cofiguration Control and Release

Configuration Status Accounting

Configuration Audits

Configuration Identification

Configuration Item Selection Appropriate selection of Configuration Items

(CI) is the key for success of every CM operation

The selection of contractual CIs is a joint customer and contractor decision

Selection of CIs require careful technical, logistical and administrative evaluation

Configuration Identification

Identification Methods

Identification of CIs in the project per product level

like System, CSCI, CSU and Document by;

Naming Convention

Revision Indicator

Configuration Identification

Baseline

The approved definition of a product at a selected point in its life-cycle.

Establish a reference basis for evolution and enhancements.

Configuration Identification

Baseline Identification and Establishment

There are commonly four formally designated configuration baseline in the software lifecycle;

• functional baseline• allocated baseline• design baseline• product baseline

Configuration Control

Configuration Control is the systematic proposal, justification, evaluation,

coordination, approval or disapproval of proposed changes, and the implementation of all approved changes, in the

configuration of a CI after establishment of the configuration baseline(s) for

the CIs.

Configuration Control

The primary objective of configuration control is to establish and

maintain a systematic change management process that

regulates life-cycle cost, and;

Allows optimum design and development latitude with the appropriate degree and depth of configuration change control procedures during the life-cycle of a system / CI.

Ensures complete, accurate and timely changes to configuration documentation maintained under appropriate configuration control authority.

Configuration Control

The Steps Within the Overall Process

Change Initiation Change Classification Change Evaluation Change Disposition Change Implementation Change Verification and Baseline Establishment

Configuration Status Accounting

Configuration Status Accounting is an element of configuration management that consists of the recording and reporting of information needed to manage a system and its characteristics effectively.

Provides traceability of changes to the baselined requirements, code and data components, and associated documentation.

Documents what is in each version of software and the changes that lead up to the version.

Configuration Audits

Audits are performed to verify that the software product matches the capabilities defined in the specifications or other contractual documentation and that the performance of the product fulfills the requirements of the user or customer.

Configuration audits composes of; Functional Configuration Audit (FCA) Physical Configuration Audit (PCA)

Configuration Audits

FCA is performed to ensure that each item of the Software product has been tested or inspected to

determine that it satisfies the functions defined in the specifications.

PCA is performed to determine whether all items identified as being part of the configuration are present in the product baseline. The audit shall ensure that the correct version and revision of each part are included in the product baseline and that they correspond to information contained in the baseline’s configuration status report.

Support Function

Configuration Management LibraryConfiguration Management Library

CM Library is established with the initiation of the project and managed by the help of CM Tools and servers (Subversion, CVS ClearCase, etc.).

Source code and document production is performed under CM library with required identification and control rules.

CM library structure shall be defined in CMP of the project with the access rights and label types and all the other detailed information.

Benefits Of CM

Faster Problem Resolution

Identify the as-built configuration, in order to recognize discrepancies detected during production, delivery or operation of the product

Enable any user to know the operational capabilities and limitations of each product item and, in case of variances or nonconformance, to know which items are affected

Benefits Of CM

More Efficient Change Management

It is essential to know what the prior structure is in order to

design changes that do not produce new incompatibilities. Keep

change traceability between source codes and documentation

and with contract requirement also.

Benefits Of CM

Cost Reduction

Product changes may involve high cost considerations. The right processing of changes and analysisanalysis of costs can keep expense per change at its lowest rate

Unauthorized changes will be prevented

Approved changes can be immediately incorporated in the technical documentation, but released for implementation into the product in accordance with an authorized budget schedule

Least cost of maintenance and reuse

Benefits Of CM

Product Consistency

deliver identical items repeat performance support the delivered product remotely modify the product without the need of reverse

engineering

CM in Organizations

Configuration Management Manager

Manage resource of the CM department for project CM assignments, define and improve CM process and procedures as required in certificated international standarts and maintain organizational level CM responsabilities.

Work with Director and Project Manager.

Configuration Management Specialist

To implement, maintain and improve system that meets and exceeds customer requirements for software configuration management and documentation.

Work with Project Manager.

International CM Standards

ISO/IEC TR 15846 Information technology -- Software life cycle processes -- Configuration Management

MIL-STD 973 Configuration Management – DoD

EIA- 649 A National Consensus Standard for Configuration Management

International Standards

Inculed CM Requirements

ISO 9001:200 Quality management systems -- Requirements AQAP 160 NATO integrated quality requirements for software throughout the life cycle

IEEE 12207 Standard for Information Technology-Software Life Cycle Processes

CMMI Capability Maturity Model Integration

End of Presentation

Question?