Web Development for Managers

W I L L K O M M E N
F O R M A N A G E R S

WHO
AM I?
25% writer of
textbooks
25% computer education
researcher
15% web developer
15% computer science and
information systems
20% political science
and philosophy

Used at 120+ universities with about 3000 copies sold per year.

S O W H AT D O M A N A G E R S
N E E D TO K N O W
A B O U T
W E B D E V E L O P M E N T ?

A N D F O U N D A L O T O F C L O U D S

A N D D AT E D + I N A C C U R AT E D E S C R I P T I O N S

MY GOAL
PROVIDE A KNOWLEDGEABLE FOUNDATION
SO MANAGERS CAN MAKE INFORMED DECISIONS
IN REGARDS TO WEB-BASED TECHNOLOGIES

M Y P L A N N E D TO P I C S
What is web
development?
Where is the
Internet?
How does the
web work?
Client-side
development
Web
programming

M Y T I M E - W I L L I N G TO P I C S
Hosting and
Virtualization
Security and
Search
Miscellaneous Questions +
Wild Cheering

w h a t
i s
w e b
D e v e l o p m e n t ?

S o m e Te r m i n o l o g y
R E Q U E S T - R E S P O N S E L O O P P E E R - TO - P E E R M O D E L

S I N G L E PA G E M U LT I P L E R E Q U E S T S

D Y N A M I C S E RV E R - S I D E W E B PA G E

D Y N A M I C W E B PA G E S TO D AY

I N T E R N E T I N T R A N E T

W E B D E V R O L E S A N D S K I L L S

WEBDEVELOPMENT
EMPLOYMENTWORLD

W h e r e i s t h e i n t e r n e t ?

I t i s n o t i n a c l o u d !

I N T E R N E T E X C H A N G E P O I N T ( I X P )

Performance
16% 43% 56% 85% 89%
Redundancy
A typical single server
can handle 1000-2000
requests/second.
Even if site isn’t busy
you still don’t want a
single point of failure.

D O M A I N N A M E S Y S T E M

D O M A I N N A M E R E G I S T R AT I O N

This software responds to HTTP requests.
Web server software is
an essential component
of web workflow

S E RV E R S O F T WA R E M A R K E T

CLIENT-SIDE
DEVELOPMENT
TECHNOLOGIES

S E M A N T I C
M I C R O F O R M AT S
<div itemscope itemtype="http://schema.org/Person">
<a itemprop="url" href="http://mtroyal.ca">
<div itemprop="name"><strong>Randy Connolly</strong></div>
</a>
<div itemscope itemtype="http://schema.org/Organization">
<span itemprop="name">Mount Royal University</span></div>
<div itemprop="jobtitle">Professor</div>
…
</div>

BUT programming technologies
a re needed f o r a ny rea l web s i te

S C E N A R I O 1 F O R M P R O C E S S I N G

S C E N A R I O 2
D ATA - D R I V E N
C O N T E N T

S C E N A R I O 3 I N T E R A C T I V I T Y

C L I E N T - S I D E S C R I P T
S E RV E R - S I D E S C R I P T

S E RV E R - S I D E A C C E S S TO R E S O U R C E S

D I F F E R E N T S E RV E R - S I D E T E C H N O L O G I E S
S A M E R E S U LT S

D ATA B A S E S I N W E B D E V E L O P M E N T

S TA N D U P + S I N G ( O R YAW N )

F R O M T H E S E R V E R ’ S P E R S P E C T I V E
T H E S E A P P E A R T H E S A M E
W H AT T H E S E RV E R
S E E S
T H I S I S W H AT W E W A N T
T H E S E R V E R T O S E E …

THERE ARE ONLY TWO WAYS TO
PASS INFO FROM CLIENT TO SERVER

1 . PA S S I N G D ATA V I A Q U E RY S T R I N G

U S I N G A U R L I N S T E A D
WHY?

S E O ( S E A R C H E N G I N E O P T I M I Z AT I O N )

2 . PA S S I N G D ATA V I A C O O K I E S

C L I E N T - S I D E W I T H J AVA S C R I P T

C L I E N T - S I D E W I T H J AVA

A S Y N C H R O N O U S R E Q U E S T S

J AVA S C R I P T F R A M E W O R K S

J AVA S C R I P T
A N D
E M P L O Y M E N T

DEPLOYMENT
VIRTUALIZATION
A N D

D E D I C AT E D H O S T I N G
Each site is on its own server(s)

S I M P L E S H A R E D H O S T I N G

V I RT U A L S H A R E D H O S T

W h y C l o u d H o s t i n g ?
R e d u n d a n
c y01
O n -
D e m a n d
P r o v i s i o n i
n g
02
S c a l a b i l i t y
03
C o s t
E f f i c i e n c y04
L o w S t a r t u p
C o s t s05
M a n a g e r s
S e e m t o
L o v e C l o u d s
…
06

S E RV E R I N E F F I C I E N C I E S

VA G R A N T A S T Y P E 2 H Y P E RV I S O R

P R O V I S I O N I N G W I T H VA G R A N T

M O R E E F F I C I E N C I E S W I T H C O N TA I N E R S

C l o u d S e r v i c e M o d e l s
C l o u d c o m p u t i n g p r o m i s e s s o m e t h i n g u s u a l l y r e f e r r e d t o a s e l a s t i c
c a p a c i t y / c o m p u t i n g ,
m e a n i n g t h a t s e r v e r c a p a b i l i t y c a n s c a l e w i t h d e m a n d .
Platform as a Service
(PaaS)
Infrastructure as a Service
(IaaS)
Software as a Service
(SaaS)
Amazon Web Services
Microsoft Azure
Google Cloud Platform

T H E P R O B L E M W I T H E V E

P R O B L E M : H O W T O T R A N S P O R T K E Y

S I M P L E E N C RY P T I O N E X A M P L E

S Q L I N J E C T I O N AT TA C K

C R O S S - S I T E S C R I P T I N G AT TA C K

D E N I A L O F S E RV I C E AT TA C K

R A I N B O W TA B L E AT TA C K ( C O N T E X T )

R A I N B O W TA B L E AT TA C K ( S O L U T I O N ? )

R A I N B O W TA B L E AT TA C K ( S O L U T I O N ! )

W E B PA G E S A S V E C TO R S
Math is then used to calculate the angle of similarity between
search vector and page vector. The smallest angles indicate the
closest matches.

C O N T I N U O U S I N T E G R AT I O N

To avoid problems with integrating software changes,
many web developers have migrated to a continuous
integration model that is dependent upon …

W E B A D V E RT I S E M E N T S

T H A N K Y O U
R A N D Y C O N N O L LY
h t t p : / / w w w. r a n d y c o n n o l l y. c o m

Web Development for Managers

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