Week 12 and 13 Software Configuration Management

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question English réponse English
Why is using copy and paste for version control a bad idea?
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Error prone
what is a version control system?
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A version control system (also known as a Revision Control System) is a repository of files, often the files for the source code of computer programs, with monitored access
describe Local version control system LCVS
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Version control database for a single developer local database or small server
describe central version control system
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A server with the versions saved documented changes accessable for multiple people downloading the file as needed to make changes
What is the key disadvantages of CVCS
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single point of failure if the server is down nobody can work, if the server is corrupted then all the work is gone
Describe Distributed Version Control System
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simmilar to centralised except that the whole repository is downloaded when a user downloads to create changes this creates back ups
What are the 3 stages of a file?
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Committed, modified, staged.
what is committed?
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the file is safely stored in the database
What is modified?
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the file has been mofidied, but it has not yet been committed
What is staged?
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the file has been modified file and marked to go into the next commit snapshot
The staging area is local true or false?
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True
What is a snapshot?
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snapshot version indicates a view of the source code taken at a specific time. This is not necessarily stable or ready for full use and can be changed in the future, as opposed to a release version which is stable and should be final.
what is a basic git work flow?
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1. Modify files in the working directory2. Stage the files by adding their snapshots to the staging area3. Commit: takes files from the staging area and stores their snapshots to the Gitdirectory
what is Software Configuration Management
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A set of disciplines and techniques of initiating, evaluating, and controlling changes to software products
describe Configuration item identification
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the fundamental structural unit of a configuration management system. Examples of CIs include individual requirements documents, software, models, and plans.
what is Promotion management
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Developing versions for use by other developers eg testing branch
What is Release management
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Developing versions for release to the customer
What is Change management
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Managing change requests
What is Branch managment
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Managaing the development of concurrent branches
Name 4 Configuration Management Roles
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Configuration manager, Change control board manager, Developer, Auditor
explain Configuration manager
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Identifies configuration items
explain Change control board manager
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Approves/rejects change requests
Explain developer
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Checks in changes and resolves conflicts
Explain Auditor
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Ensures the consistency and completeness of the release
Define configuration item
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An aggregation of hardware, software, or both, that is designated for configuration management and treated as a single entity in the configuration management process
Define Baseline
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A specification or product that has been formally reviewed and agreed to by responsible management, that thereafter serves as the basis for further development, and can be changed only through formal change control procedures”
Define Version
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The initial release or re-release of a configuration item associated with a complete compilation or recompilation of the item
Define Revision
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Change to a version that only corrects errors in the design/code; does not change functionality
Define Release
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The formal distribution of an approved version
name some examples of Configuration Items
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}Problem statement} Software project management plan} Requirements analysis document} System design document} Project agreement} Object design document} Dynamic model} Object model} Functional model} Unit tests} Integration test strategy} Source code}...
Give examples of Baseline
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}First prototype of the system is implemented and tested} All data access methods are implemented and tested} The GUI is implemented
Explain the Naming Schemes for Baselines
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7.4.2 Major(External release). Minor(Internal release). Small revision(Developer)
What is Change Management
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Handling of change requests
What is the process for Change Management
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Change is requested} Change requested is assessed against requirements and constraints} Change requests is either accepted or rejected} If accepted, it is assigned to a developer and implemented} Implementation change is audited
what are the Ty p e s o f C o n t r o l l i n g C h a n g e s
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Promotion and release
explain propmotion controll
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The internal development state of a software is changed
Explain release control
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A changed software system is made visible outside the development organization
When does Software configuration management planning start d
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during the early phases of a project
What is the outcome of SCM planning
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the Software Configuration Management Plan
What are the 6 sections of an SCM PLan
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Introduction, SCM management (WHO?), SCM activities (WHAT?), SCM schedule (WHEN?), SCM resources (HOW?), SCM plan maintenance
Explain SCM plan introduction
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Describes the Plan’s purpose, scope of application, key terms, and references
Explan SCM plan managment
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Identifies the responsibilities and authorities for managing and accomplishing the planned SCM activities
explain SCM plan activities
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dentifies all activities to be performed in applying to the project
Explain SCM plan schedule
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Establishes required coordination of SCM activities with other activities in the projec
Explain SCM plan resources
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Identifies tools and physical and human resources required for the execution of the Plan
Explain SCM plan maintenance
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identifies how the Plan will be kept current while in effect

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