程序代写代做代考 flex html Agile Software

Agile Software
Development Practices SOF2412 / COMP9412 Team Dynamics; Tools and Technologies for Teamwork
Dr. Basem Suleiman School Computer Science
The University of Sydney
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Agenda
– Teams in Software Development Models
– Teams in Agile Development
– TeamDynamics
– Effective Teams and Teamwork
– IssueTracking
– Tools for Issue Tracking and Teamwork
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Software Development Models – Teams
Do software development models influence team structure and interactions in software development?
Waterfall model plan-driven development

Agile Vs Waterfall: Showdown For Software Development Domination


Agile model Incremental & iterative development
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Waterfall Model – Teams
Development activities
Teams
Divide the work into stages
A separate team of specialists for each stage
At each stage, the work is passed from one team to another
Some coordination is required for the handoff from team to team – using “documents”
At the end of all of the stages, you have a software product ready to ship
As each team finishes, they are assigned to a new product
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Teams under different SDLC models
– In a traditional structure how do teams work?
– As work is planned and allocated, it can be divided into pieces that should
be more-or-less independent
• Specialistteams
• Project management and resource reallocation
• Clear authority lines, so disagreements can be resolved
– Problems?
• Single points of failure • Inflexibility
• Lack of feedback
– And in Agile teams? The University of Sydney
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Agile Manifesto – Revisit
– Individuals and interactions over processes and tools
– Working software over comprehensive documentation
– Customer collaboration over contract negotiation
– Responding to change over following a plan
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Agile Manifesto –
– Individuals and interactions over processes and tools
– Why Agile values individuals and interactions over processes
and tools? Discuss
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Agile Manifesto – Why Individuals and Interactions?
– Why Agile values individuals and interactions over processes and tools?
– Peopletendtofollowprocessesblindly,andmakemistakes
– “A great tool can sometimes help people to do the wrong thing faster”
– Tools or best practices are not enough – people who need to use it should buy into it to realize its benefits
– Peopleneedstoseethevalueoffollowingcertainpractices
– It is important to recognize that you are working with a group of people
who have different motivations, ideas and preferences The University of Sydney
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Agile Principles 1 – People
– Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done
– The most efficient and effective method of conveying information to and within a development team is face-to-face conversation
– At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly
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Agile Principles 1 – People
– Group Discussion:
– Brieflydiscusshowthefollowingagileprinciplesperceiveteamsand
teamwork in agile development?
– Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done
– The most efficient and effective method of conveying information to and within a development team is face-to-face conversation
– At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly
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Agile Principles 2 – People
– Business people and developers must work together daily throughout the project
– Thebestarchitectures,requirements,anddesignsemergefromself- organizing teams
– Ourhighestpriorityistosatisfythecustomerthroughearlyandcontinuous delivery of valuable software
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Agile Principles 2 – People
– Group discussion
– briefly discuss how the following agile principles perceive teams and
teamwork in agile development?
– Business people and developers must work together daily throughout the project
– The best architectures, requirements, and designs emerge from self-organizing teams
– Our highest priority is to satisfy the customer through early and continuous delivery of valuable software
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Teams – Individuals and Collaboration
– Common problem experienced in software development teams “throw it over the wall”
– Team members are busy thinking about their own project work and problems • Different views/perspectives
– Teams are divided, and collaboration is killed
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Agile Practices – The Agile Elephant
– The agile elephant is made up of many practices
*Agile practices and Scrum method (most of these presented in this figure) will be discussed in more details in future lectures. The focus of the discussion here is on teams and the adoption of Agile practice
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Agile Teams – Individual Practices
– When adopting agile practices, team members may adopt practices individually:
– Each person uses only the practices that impact their work; developers focus on automated tests and build, team leads on task boards, project velocity and burn-down charts, business users on user stories
– Adoptingpracticesindividuallywillimprovethings,butthismayleadto a self-contradictory effect
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Teams – Individual Practices
– When adopting agile practices, team members may follow the same thinking:
– Each person uses only the practices that impact their work; developers focus on automated tests and build, team leads on task boards, project velocity and burn-down charts, business users on user stories
– Adopting practices individually will improve things, but this may lead to a self- contradictory effect
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• •
Each person sees the part of agile that affects their specific work – (attitudes: “see! I was right all along”)
Agile is made up of day-to-day practices, but it’s much bigger than those practices

Understanding the Agile Elephant
– If you only sees the practices that directly affect your project work, then you will see the one small piece of agile
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Team Dynamics
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Team Dynamics
– “Team dynamics are the unconscious, psychological forces that influence the direction of a team’s behaviour and performance”
– Factors that lead to team dynamics:
– Personalities and work styles
– Knowledge and skills
– Organization culture and structure – Culturaldifferences,background
S. P. Myers, 2013 https://www.teamtechnology.co.uk/team/dynamics/definition/
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Team Dynamics – Good or Bad?
In Agile development, is team dynamics a good or bad thing? Discuss
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Team Dynamics – Pros and Cons
– Can be good
– E.g., Improve overall team performance (productive conflict, different
perspectives) – Can be bad
– Can lead to unproductive conflict can demotivate and prevent team from achieving its goals
S. P. Myers, 2013 https://www.teamtechnology.co.uk/team/dynamics/definition/
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Team Dynamics – Tuckman Team Development Model
Image: https://www.atlassian.com/agile/teams
Tuckman’s stages of group development – https://en.wikipedia.org/wiki/Tuckman%27s_stages_of_group_development
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Team Dynamics – Identification and Resolution
– Result from the interaction of many factors
– E.g., Personalities, work style, roles, culture, organizational structure
– Investigate the root causes of conflict or poor team performance – Structured interviews or informal chats in a private and confidential
– Identify potential improvements
– E.g., change in office layout, team development workshops (practices,
personality dynamics, cultural change programs)
Source: https://mysoftwarequality.wordpress.com/2014/09/04/cross-dysfunctional-teams The University of Sydney
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Agile Teams – Skills
– It’s claimed that agile teams work with the best developers. However, this is not necessary the case;
– Every project needs at least one experienced and competent lead person (Critical Success Factor)
– Each experienced and competent person on the team permits the presence of 4-5 “average” or learning people
– With that skill mix, agile techniques have been shown to work many times
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Teams Culture
– Consider the following scenarios:
– Developer: “It works in our environments, it’s operations responsibility to make it
work in production”
– Tester: ”Listen, it worked in User Acceptance Testing, it must be a configuration issue, or a missing firewall hole and nothing I could have spotted during testing…”
– Customer: “Hello! Nothing works here…”
– Are these statements signs of team dynamics?
– Should this kind of culture exist in agile teams?
Source: https://mysoftwarequality.wordpress.com/2014/09/04/cross-dysfunctional-teams The University of Sydney
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Effective Teamwork
– Teamwork comprises of the right tools, the right people ad the right practices
– Effective teamwork is everyone’s shared responsibility
– Large software organizations, teams involve many roles across different
departments (engineering, design, sales/marking, legal)
– Use team building activities to build effective teams
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Team Building
– “Various types of activities used to enhance social relations and define roles within teams, often involving collaborative tasks”
– There is an evidence how team building affect positively team effectiveness
https://en.wikipedia.org/wiki/Team_building
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Team Building Activities
– Goal setting: emphasizes the importance of clear objectives and individual and team goals
– E.g., objectives and key results (Atlassian)
– Interpersonal relations: focus on teamwork skills such as giving and
receiving support, communication and sharing information
– Standup meetings
– Roles and responsibilities (Atlassian)
https://en.wikipedia.org/wiki/Team_building The University of Sydney
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Team Building – Roles and Responsibilities
– Define the roles and responsibilities that will make your team successful
– Clarify expectations as a team
– Helps to move a team from “storming” to “norming”, or help “performing” teams to get back on track
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Roles and Responsibilities – How?
– Create a table of roles and responsibilities
– Responsibilities from own perspective
– Responsibilities from team member’s perspective
Name
Role
Responsibility (own)
Responsibility (other’s)
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Roles and Responsibilities – How?
– Identify roles
– E.g., team lead, developers, designers
– Coarse-grained
– Add to the role’s column
– Clarify own responsibility
– Think of top 3-5 tasks in priority order
– Write on sticky notes
– Think of teammate’s responsibilities
– Write 1-2 responsibilities for each role from your perspective
– Write responsibilities you may think that don’t have a clear owner
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Roles and Responsibilities – How?
– Refine and consolidate (optional)
– Talk teammates with similar roles and refine responsibilities
– Discuss all roles
– Role owner(s) describe their role and place their sticky notes in own
responsibility column
– Other teammate’s role description in the other column
– Owner to accept/decline the responsibilities by other teammates (suggest role to own it). Define primary owner for overlapping roles
– Add “unassigned responsibilities” to – Summarize roles and responsibilities
– All to agree
– Owner to document it and how to fill skill gaps The University of Sydney
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High-Performing Agile Teams
– Cross-functional; engineers, designers, architects, sales
– Mutual respect and mutual responsibility
– Not blaming culture, and/or “throw it over the wall”
– Sound engineering practices (tools and automation)
– Value and belief of agile practices and principles
– Apply agile practices effectively as individuals and as a team
– Receive continuous training (technical and non-technical) and team monitoring/coaching
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How much can you find out?
– Search for:
– Teameffectiveness
– Self-managedteams – Groupconflict
– Teamefficacy…
– Learn about the theory of teams! The University of Sydney
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Tools and Technologies for Teamwork
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Issue Tracking Systems
– A software that manages and maintains lists of issues
– Used to create, update and resolve reported issues internally or externally
– Bug (defect) Tracking System: keeps track of reported software bugs in software development projects
– Centralized overview of development requests and their states
– May assigned a priority, status, severity and/or complexity – Prioritizedlistofpendingitems(Backlog)
– Typically integrated with other tools or software management systems
https://en.wikipedia.org/wiki/Issue_tracking_system https://en.wikipedia.org/wiki/Bug_tracking_system
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Bug/Issue Tracking Part of other Systems
– Part of integrated project/software development management systems
– It helps integrating issue/bug tracking with other activities
– Distributed bug tracking tools are designed to be used with distributed revision control software
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Bugzilla – Bug Tracking Tool
– Open-source web-based bug tracker and testing tool by Mozilla project
– Bug (or feature) requests can be submitted by anyone and will be assigned to a
particular developer
– Various status updates for each bug
– E.g., Bugzilla itself allows the public to file bugs – it assigns all bugs to a gatekeeper whose job is to assign responsibility and priority level
https://en.wikipedia.org/wiki/Bugzilla
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Bugzilla – Bug Lifecycle
By Nyco [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], from Wikimedia Commons
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Issue Tracking – GitHub
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GitHub Issue Tracking – Edit Labels
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GitHub Issue Tracking – Project Management
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Version Control Systems – GitHub Revisit
– GitHub allows groups of people to collaborate across many projects at the same time in organizations account
– Organization’s members can be:
– Owner: complete administrative access to the organization
– Member: default role for everyone else
– Owners can manage members’ access to the organization’s repos. and projects with fine-grained permission controls
– Can add collaborators from outside of the organization (consultant) to have access to one or more organization repos. without bring a member of the organization
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GitHub – Organization Access Control (Revisit)
– Examples of access permissions for organization’s owners and members
https://help.github.com/enterprise/2.13/user/articles/permission-levels-for-an-organization/
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GitHub – Creating Organization (Revisit)
–.
Organizational accounts have a namespace where all their projects exist
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GitHub – Add Members to Organization (Revisit)

Note: when you create a new repo you can create them under your personal account or under any of the organizations that you’re owner in
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GitHub Organization – Manage Repos. (Revisit)
–.
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GitHub Organization – Manage People (Revisit)
–.
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GitHub Organization – Manage Teams (Revisit)
–.
You may have 3 repos; Designs, Front-end and Back- end. You want FrontEndDeve to work on the Front-end and Designs repos, Designers team to work on Designs repo and BackEndDeve to work on Back-end repo
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GitHub Organization – Manage Projects (Revisit)
–.
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GitHub Organization – Audit Log (Revisit)
– Audit log records all events that have happened at the organization level, who did them and where in the world they were done
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Jenkins
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Jenkins – CI / CD
– “Jenkins is a self-contained, open source automation server which can be used to automate all sorts of tasks related to building, testing, and delivering
or deploying software.”
– Jenkins pipeline is a suite of plugins which supports implementing and integrating continuous delivery pipelines into Jenkins
– A continuous delivery pipeline is an automated expression of your process for getting software from version control right through to end users/customers
– Typically written in Jenkinsfile which is checked in a project’s source code repository
https://jenkins.io/
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Jenkins – Integration with GitHub (1)
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Jenkins – Integration with GitHub (2)
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Jenkins – Integration with GitHub (3)
• Webhooks to set up GitHub applications to subscribe to certain events on GitHub
• Events is triggered, HTTP POST payload will be sent to the webhook’s configured URL
• Webhooks can be used to update an external issue tracker, trigger CI builds, update a backup mirror
https://developer.github.com/webhooks/ The University of Sydney
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Teamwork Collaboration Tools
– What tools would you use to help support your team? – Examples:
– Dropbox
– GoogleDocs – Skype
– Trello
– Slack
– Basecamp
– Asana
– …other
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Other Tools – Asana – Project Management
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References
– Andrew Stellman, Margaret C. L. Greene 2014. Learning Agile: Understanding Scrum, XP, Lean and Kanban (1st Edition). O’Reilly, CA, USA.
– S. P. Myers, 2013. [https://www.teamtechnology.co.uk/team/dynamics/definition/]
– Cross Dysfunctional Teams.
[https://mysoftwarequality.wordpress.com/2014/09/04/cross-dysfunctional-teams]
– Atlassian, Agile Teams. [https://www.atlassian.com/agile/teams]
– Tuckman’s stages of group development. https://en.wikipedia.org/wiki/Tuckman%27s_stages_of_group_development
– Atlassian, Teamwork. [https://www.atlassian.com/teamwork]
– Team building. [https://en.wikipedia.org/wiki/Team_building]
– Issue tracking system. [https://en.wikipedia.org/wiki/Issue_tracking_system]
– Bug tracking system. [https://en.wikipedia.org/wiki/Bug_tracking_system]
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References
– Further Readings:
– Hackman J. R., “Leading Teams: Setting the stage for great performances”,
Harvard Business Press 2002
– Hackman J. R., Katz N. “Group behavior and performance”. In Fiske ST, Gilbert DT, Lindzey G Handbook of social psychology (5th ed.) New York: Wiley; 2010. pp. 1208-1251. DOI: 10.1002/9780470561119.socpsy002032
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Tutorial: Continuous Integration with Jenkins / Docker
Team Dynamics – Team Building Activities
Lecture: Agile Methods, Scrum
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