IBM Software Group IBM Software Group Rational software ®® SCMA45 Building a Distributed Release Process Using IBM Rational ClearCase, IBM Rational ClearDDTS at Cisco Systems Rinat Ailon and Gadi Berman Cisco Systems

IBM Software Group Rational software Rational User Conference 2003 ®

IBM Software Group Rational software Rational User Conference 2003 ® Who Are We?  A release engineering team in Cisco Systems (15 release engineers), that provides process and tools for a distributed development and test environments (1800 engineers in 10 sites)

IBM Software Group Rational software Rational User Conference 2003 ® Specifically, we handle  Build Management  Change Management  IBM Rational ClearCase  IBM Rational ClearCase MultiSite  IBM Rational ClearDDTS  In a distributed environment, using

IBM Software Group Rational software Rational User Conference 2003 ® Builds should be monitored and controlled from all sites (mutually) Total of 100 different products/releases/platforms builds on 30 build machines, used by 10 development sites. Redundancy is needed for fast recovery Products are built in 5 sites (SJ, Champaign, Netanya, Bangalore, Chennai) Build machines should be protected

IBM Software Group Rational software Rational User Conference 2003 ®  The strategy  The tools

IBM Software Group Rational software Rational User Conference 2003 ®

IBM Software Group Rational software Rational User Conference 2003 ® Getting There Release Management PIT Release Engineering Team Development Teams Test Teams

IBM Software Group Rational software Rational User Conference 2003 ® The PIT  PIT – a cross organizational Process Improvement Team was established  The PIT includes developers, test engineers, team leaders, and a project manager, all working together to improve the release engineering process

IBM Software Group Rational software Rational User Conference 2003 ®  Identifying our release engineering challenges/problems PIT Baseline Deliverables Mapping the current process that is used ("is model"), and then identify the gaps, if exist, to a "should model" that would address better and improve team operations  Identifying the “should model” RE meta-process  Identifying the “should model” RE process boundaries  Defining the sub processes and provide requirements documents

IBM Software Group Rational software Rational User Conference 2003 ® Identifying The RE Meta-Process

IBM Software Group Rational software Rational User Conference 2003 ® Identifying The RE Process Boundaries

IBM Software Group Rational software Rational User Conference 2003 ® Defining The Sub Processes Daily/Weekly Build Process  We have defined our current daily/weekly build process in terms of ownerships/responsibilities, occurrences, schedules, inputs, outputs, and customers

IBM Software Group Rational software Rational User Conference 2003 ® Once the current process is defined, we can start working on improving it

IBM Software Group Rational software Rational User Conference 2003 ®

IBM Software Group Rational software Rational User Conference 2003 ® Change Management Improved Process Shared Private OfficialInteg  Developers work on private or shared branch (per task/ddts item)  Work is merged by developers (push) to the daily branch, where the integration (daily) build is performed  Work is merged by the project manager (pull) to the official (weekly) branch, where the official (weekly) build is performed

IBM Software Group Rational software Rational User Conference 2003 ® Build Improved Process The second phase was to improve the build tools, so it will align with the change management process and will provide a solution to our needs

IBM Software Group Rational software Rational User Conference 2003 ®

IBM Software Group Rational software Rational User Conference 2003 ® From Process To Tools Change Management Build Management Quality Assessment

IBM Software Group Rational software Rational User Conference 2003 ®  We have developed a tool and a concept designed to deploy our change management methodologies and make Rational ClearCase operations simpler Change Management Process Support Tool

IBM Software Group Rational software Rational User Conference 2003 ® MATIS ClearCase Manager3.3 At a glance …

IBM Software Group Rational software Rational User Conference 2003 ® Choose the profile to work with Choose dynamic or snapshot view In a snapshot view you may add the load rules here. Use the “Add” and “Remove” buttons to edit the list of directories to load into the snapshot view What is a profile? A profile is a shared branching scheme which the view is based on. By creating the view based on a profile – we do not need to know how to create config specs. MCCM3.3 Example Operation – Create View

IBM Software Group Rational software Rational User Conference 2003 ® MCCM3.3 Example Operation - Merge Choose branch to merge from. Only the important branches are shown. Choose view to merge to. and then …

IBM Software Group Rational software Rational User Conference 2003 ® Merge Choose in which directory you want to look for files that need merging. and then …

IBM Software Group Rational software Rational User Conference 2003 ® Rational ClearCase Merge Manager Will Appear With The List Of Relevant Files:

IBM Software Group Rational software Rational User Conference 2003 ® Sites With No Rational ClearCase Servers  Site with no Rational ClearCase servers, use Rational ClearCase Web interface

IBM Software Group Rational software Rational User Conference 2003 ® MATIS Build System  MATIS Build System is a generic build framework that can wrap any type of build architecture and provides:  Log parser for easy lookup and messaging of errors  Web interface for scheduling, controlling and monitoring builds  Protects build machines and provides redundancy between machines  Builds related reporting system

IBM Software Group Rational software Rational User Conference 2003 ® Start/Stop/Continue/ Rerun builds Schedule builds Build Control Center Monitor running builds

IBM Software Group Rational software Rational User Conference 2003 ® Official BuildBoard Public board to hold official builds for a product to be downloaded

IBM Software Group Rational software Rational User Conference 2003 ® Build Reports Reporting on changes made between two builds and changes made from a certain build to the upcoming build

IBM Software Group Rational software Rational User Conference 2003 ® Quality Metric Graphs System  Displays the current status of a product’s quality during the development cycle

IBM Software Group Rational software Rational User Conference 2003 ® Quality Metric Graphs system  Displays the trend of a product’s quality during the development cycle

IBM Software Group Rational software Rational User Conference 2003 ®

IBM Software Group Rational software Rational User Conference 2003 ®

IBM Software Group Rational software Rational User Conference 2003 ® Gadi Berman Rinat Ailon