2136 gallows road, suite f, dunn loring, va 22027 phone: 1-703-208-9120 fax: 1-703-852-7939 business...

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2136 Gallows Road, Suite F, Dunn Loring, VA 22027Phone: 1-703-208-9120 Fax: 1-703-852-7939Business Analyst

TrainingModule 5.2

Rational ClearCase

2 BA TrainingModule 5.2 | Rational ClearCasev3.0

Rational ClearCase Repository management for project-wide artifacts

Release documents Review documents Technical design documents Deployment Code

Provides Accountability Version control Controlled accesss

Just a sophisticated Explorer!


Rational ClearCase What is ClearCase?

ClearCase is a comprehensive software version control and configuration management system, designed for development teams working in a local network.


Rational ClearCase-View


Rational ClearCase


Rational ClearCase ClearCase Overview

Provides versioning of all types of files & directories Records and reports history Guarantees accurate reproduction of every release Provides traceability & reproducibility Provides powerful branch-and-merge tools Assures integrity of all software elements


History Of Folder


When and By Whom?


Clearcase-Check in


Rational ClearCase

Checked-out


Rational ClearCase ClearCase Version Control Features

Easy checkout-edit-checkin model – Adding folders or files –Checkin Reserved for modification-Checkout Intelligent merge utility automatically merges non-conflicting

changes Graphical compare and merge tools Two modes of work with Dynamic and Snapshot Views


Check Out


Version Tree


First Version


N-th Version


To See All Versions

Click here to see all

Versions

Compare-Specific Version

Compare-Previous Version

Birds Eye-Shows the Version you

see


Rational ClearCase What is a VOB?

Versioned Object Base the whole database consists of several VOBs

A read-only repository of ClearCase elements A network-wide, file system resource which stores version-controlled data A user accessible repository that resides: on a Windows NT system, or on a UNIX system


Rational ClearCase Basic Actions for an Element

Checkout - a new editable version is created - only one person can edit the file at the same time

Checkin - the version that was created by checkout command is saved to the VOB and is then visible to the other views - the element changes to write-protected mode

Undocheckout - undo operation for checkout

These Options can be selected when right clicked on the application. Rational ClearCase

Workspace Management - Views

Dynamic Views Snapshot Views


Other Options


Rational ClearCase WHAT IS A VIEW? Workspace for an individual developer or closely coordinated

group . Selects versions of Versioned Object Base (VOB) directories

and files . Allows developers to work without interfering with others . File checkout by particular user is reserved fro him to modify.No other user can access that folder for

modification unless its modified and checked in.


Rational ClearCase Version Selection by Views

A view selects versions of elements What is seen is the result of an ordered Set of rules called a configuration specification Selected versions appear in a standard Directory tree with recognizable file names.

Eg:R0234/Business/System Checkout d1046/Development/System Design


Rational ClearCase What is a Configuration Specification?

Each view has a config spec that defines a set of rules for selecting versions of file and directory elements

A default config spec is automatically set whenever you create a new view The default config spec selects files or directories that are: checked out, or the latest version on the main branch of the version tree The Default Config Spec: element * CHECKEDOUT element * \main\LATESTUpdate View gives latest config spec.


Update View


Rational ClearCase When To Use Snapshot Views

You want to work with source files that are under ClearCase control while

disconnected from network You prefer to use a view that is updated only at your request You want to access a view from a machine that is not a ClearCase host


Rational ClearCase Dynamic Views

Transparent access to elements - access to virtually any version of any element.-Always up-to-date Minimal copying Provides build auditing – Whenever new build done by CM group.


Rational ClearCase Snapshot View vs. Dynamic View

Similar

Use config specs rules to select element versions Follow the checkout, edit, checkin paradigm Allow reserved or unreserved checkouts


Rational ClearCase As development progress, a snapshot view becomes out of

date and must be explicitly updated A checkout of an element may use the version loaded into the

view, not necessarily the latest version in the VOB To check in such an element, you may have to perform a

merge If the element version is not the latest version, you are asked

to confirm which version to checkout

2136 gallows road, suite f, dunn loring, va 22027 phone: 1-703-208-9120 fax: 1-703-852-7939 business...

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