Architect Bootcamp Johannes Brodwall, Chief scientist Exilesoft Global
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Architect BootcampJohannes Brodwall, Chief scientist
Exilesoft Global
Agenda
What’s an architect?How to “do” architecture
One architect toolchest• Practice
What is an architect?
(Hands on)
Types of architects
Problems for Solution architects
Skill for Solution architects
A solution architect is someone who understands the customer’s problem
(including contraints, context, domain knowledge) and uncovers (though a
team effort) and communicates (with credibility) a feasible solution (primarily,
but not exclusively technical)
How to «do» architecture?
Project initiation
Communicating vision
Maintaining the architecture
Toolchest
Example«Smidig» conference application
Vision
Stakeholders
Usage flow
Context
Domain model
Implementation
Deployment
Example vision statement
For Agile practitioners
Who need to expand on their experience and network
The Smidig conference
Is a networking event
Which connects you with other Agile practitioners.
Unlike traditional conferences
This presents the experience of many people through lightning talks.
For Conference organizers
Who want to organize a good conference
The Smidig conference app
Is a web application
Which eliminates unnecessary work.
Unlike commercial conference apps
This is optimized for the large number of talks we have and allows us to make changes fast.
Example stakeholders
Speaker
Description• Experienced• New speaker• Passionate
Duties• Register talk• Upload slide• Give talkValues• Constructive feedback
on talk• Easy CfP• Fast answer
Attendee
Description• Knows about agile• Works in project• Norwegian
Duties• Pay for conference• Get approval to go
Values• Easy registration
Organizer
Description• Volunteer• Works in evenings• Has network
Duties• Select talks• Follow up
paymentsValues• Easy selection process• Good information overview• Never lose a participant• Financial transparency
Sponsor
Description• Busy• Manager• Not very interested
Duties• Provide logo• Pay sponsorship
Values• Informal
communication• Easy evaluation
Example usage flow
Attendance
1. Agile project practitioner wants to learn
2. Attendee goes to Smidig website
3. Attendee registers
4. Attendee pays
5. Attendee receives confirmation mail
6. Organizer can see the registration
7. Organizer sends reminder email to attendee to come
8. Organizer prints badges for attendees
9. Attendee shows up at Smidig and has an excellent time
Speaker
1. Agile experts wants to share knowledge
2. Potential speaker goes to Smidig website
3. Potential speaker registers personal info
4. Potential speaker registers talk
5. Potential speaker receives registration confirmation email
6. Organizer sees registered talk and can market speaking opportunities
7. Organizer accepts talk for confence
8. Speaker receives acceptance email– Alternative: Speaker withdraws talk – organizer updates the talk
and selects another
9. Organizer prints badges for speakers
10. Speaker shows up at Smidig and gives talk
Example context model
Smidig2011.no
Participant Speaker
Organizer
Printing company
Paypal
Example domain model
User• Name• Email• Company• Phone• Password• Accepts email?
Registration• Ticket type• Price• Paid amount• Paypal ref• Payment date• Invoice address [optional]
Talk• Title• Description• Tags[]• Slide file• Status : {pending, accept,
reject}• Email_sent• Position
Speaker*
*
Comment• Title• Text• Created date
*
*
Period• Stage• Title• Time of day• Day
Example implementation
diagram
Router
Controller
1. Find controller
2. Dispatch action
Model class3. Find model
Model4. Manipulate model
5.? Save model
Database
View template View template
6. Render model with view template
Router
/app/controllers
UsersController
1. Find UserController
2. update(id)
/app/models
User class3. find(id)
app/models
User
5. update_attr(params)
6. save
Database
8. Redirect /users/<id>
POST /users/<id>
4. SELECT … FROM users
7. UPDATE users SET …
Router
/app/controllers
UsersController
1. Find UsersController
2. show(id)
/app/models
User class3. find(id)
UserDatabase
/app/views/users
show.html.erb
5. Render
GET /users/<id>
4. SELECT … FROM users
6. Get attributes
Alternative
Browser Smidig2012.no Paypal.com
1. POST /users
2. Redirect to paypalwith return_url and notify_url
3. Perform payment
4. POST /payment_notifications
5. Redirect to return_url
5. GET /user/<id>
Update user info
Show user info
Save user info
Example deployment model
Heroku
Smtp.dreamhost.com
Paypal
PostgreSQL
Smidig-conference
(Rails)
Web user
Developer
smidigdb
git.herokugithub
git pushgit pushgit pull
html/http
http
smtp
Your turn
Practice example
For some stakeholder
Who has a problem
The architect bootcamp
Is a type of activity
Which gives a capability.
Unlike most relevant alternative
This has a distinguishing attribute.
For Exile Developers
Who need to make architectural decisions and design
The architect bootcamp
Is an interactive workshop
Which gives a set of tools.
Unlike spending the time in projects
This gives a chance for reflective learning.
1. Groups of three
2. Presentation of group visions
3. Lets’s make a shared vision!
Break until 13:30
Participants
Description• Developer• Nominated• In a project• Likes to learn
Duties• Share knowledge• Participate actively• Get permission to
attend
Values• Becoming productive• Continue to learn after course• Analytical skills• Get to know people with
ideas
Customer
Description• Not here• Pays for the time
Duties• Evaluate request
to attend
Values• Productivity• Domain understanding• Skilled consultants• Want your time!
Exile mgmtDescription• PMO, Finn• Some are present
Duties• Arrange coach• Talk to customers• Nominate participants
Values• Credible Exile
«architects»
Coach
Description• Experienced architect• Experience from real
projects• Reputation• Can talk to customer
Duties• «Sell» the workshop• Prepare• Define scope
Values• «Adventure»• Get to know participants for
future cooperation• Learn about different different
projects• Grow the Exilesoft brand
Real world example:
CRM
14:30 Finn and Johannes discuss CRM vision live
For Exilesoft PMO
Who should start up Pocket Mobile in Sweden 21st November
The CRM task system
Is a workflow system
Which help organize all the practical details towards a goal.
Unlike Outlook This gives a total picture for everyone involved.
Vision: Pocket Mobile kickoff
For Exilesoft Sweden Sales Director
Who needs to gather prospective customers into a room
The CRM marketing module
Is a mass marketing tool
Which identifies, emails and follow-up potential systems using.
Unlike Excel and YMLP
This Identified receipients and let the whole sales team see the followup.
Vision: Stockholm breakfast seminar
For ________________
Who ________________
The ________________
Is a _________________
Which ________________.
Unlike ______________________
This _______________________.
Vision: Customer conference
Usage flow – breakfast seminar1. Exilesoft decides to have breakfast seminar
2. First time: Someone imports contact info and do-not-mail list from spreadsheets and Highrise
3. Campaign manager creates a receipent list1. Include by geography (include unknown)
2. Exclude by financial parameters
3. Exclude by e.g. @hotmail.com
4. Exclude do-not-send-list
5. Make filter reusable in the future
4. Graphics guys make email
5. Campaign manager exports recipient list into YMLP
6. Campaign manager verifies mail and sends
7. YMLP tracks when users open, forward or delete emails
8. CRM fetches email events from YMLP
9. Receipient find more info and signs-up for event (in CRM??)
10. Campaign manager finds out who should receive reminders
11. Campaign manager gets participant list
1. Optional: Participant list includes pictures from Linkedin
Real world example
Statnett electricity reserves1. Grid operator want to maintain balance of electric production and
consumption
2. Power producer sends unused capacity per hour for each power plant to Statnett using EDIFACT
– Detail: The capacity “line” has a price– Detail: Each plant may have several capacities at different prices– Detail: Capacity may be to increase or to decrease production
3. A spike occurs in the consumption or production
4. Grid operator lists the available reserves per power plant1. Alternative: Operator filters the list by area
5. Grid operator selects a capacity to compensate for spike
6. Grid operator enters power usage on the capacity1. Alternative: The system verifies that capacity is valid
7. Balance is restored
8. At end of hour, system sends usage to pricing system (XML/http)
9. Some time later, pricing system sends price for usage (XML/http)
10. System sends price capacity usage to accounting system
11. Accounting system pays producer for usage
How would you break it down?
Context model• What parties are involved?
• How do they communicate?
Domain model• What concepts are
involved?• How do they relate?
Start after lunch:
13:30
Resume after break
15:45
Implementation:
Time series
Q&A
Your systems
Example vision statement
For some stakeholder
Who has a problem
The system
Is a type of system
Which gives a capability.
Unlike most relevant alternative
This has a distinguishing attribute.
Example stakeholders
UserWho are they• …
What do they do?• …
What do they value?• …
UserWho are they• …
What do they do?• …
What do they value?• …
UserWho are they• …
What do they do?• …
What do they value?• …
UserWho are they• …
What do they do?• …
What do they value?• …
Example usage flow
….
1. Something happens in the real world
2. The event is communicated to the system
3. The system does something
4. Someone does something with the system
5. …
6. …
7. …
8. …
9. …
10. Some goal is achieved
Example context model
What actors did you mention in scenario?
Example domain model
What concepts did you mention in
scenario?
Example implementation
diagram
How does the code work?
Example deployment model
Which servers are involved in
production?
Conclusion:
Tomorrow: Make your system shine!
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