What you need to know about an IT experience - 2012-11-29 - universite-lille

Contact details
alt-f1 sprl - Université de Lille1 Master informatique - Les conférences du Jeudi
Managing Partner
ALT-F1 SPRL/BVBA
Abdelkrim BOUJRAF
@: abo@alt-f1.be
W: www.alt-f1.be
M: +32 (0)497 480.970
1
29 November 2012
Twitter: @abdelkrim

Où suis-je?
Université de Lille 1 – MA Informatique
¨  Le Master informatique est composé de plusieurs
spécialités :
¤  E-services (Conception d'applications Web et Mobile),
¤  IAGL (Conception et architecture logiciel),
¤  TIIR (Systèmes, Réseaux, Sécurité),
¤  MOCAD (IA et Analyse des grands volumes de
données)
¤  et IVI (Imagerie, 3D)
2
29 November 2012

Experiences
3
¨  ALTI International S.A. (1998)
¨  Mediagenix S.A. (Feb 2001) – Bulle internet
¨  Digital Age Design S.A. (Sept 2001) -> LBi Group
¨  Unisys Belgium S.A. (2007) – Crise bancaire
¨  ALT-F1SPRL (Oct. 2010)
29 November 2012

Alt-f1.be
4
¨  Group of entrepreneurs
¨  Business Intelligence
¨  Project – Program – Portfolio management
¨  Coaching
¨  Marketing & Web Marketing Strategy
¨  Quality Assurance
¨  R&D
¤  Cloud computing
¤  Lean manufacturing (Optimisation)
29 November 2012

Expectations
¨  …le sujet puisse dans la mesure du possible parler de
problématiques intéressant le plus grand nombre de
nos étudiants, mais nous aimerions avant tout profiter
de votre longue et diverse expérience
professionnelle…
¨  Vous écouter
5
29 November 2012

Paran Yo, the place where we can share the
world!
Case study
29 November 2012
6

Paran Yo, the place where you can
share the world!
29 November 2012alt-f1 sprl - Université de Lille1 Master informatique - Les conférences du Jeudi
7

Where do I start?
The methods
Paran Yo
29 November 2012
8

V-Model (software development)
Requirements
analysis
System
Design
Architecture
Design
Module
Design
User
Acceptance
Testing
System
Testing
Integration
Testing
Unit Testing
Source code
Determining the needs or conditions to meet for a new or
altered product, taking care of the conflicting requirements of
the various stakeholders
9
29 November 2012
Defining the architecture, components,
modules, interfaces, and data
Defining the architecture,
components, modules,
interfaces, and data
Design independent,
interchangeable
collection of procedures
and other values

Methods - Requirements analysis
¨  Rational Unified
Process
¨  FURPS
¤  Functionality
¤  Usability
¤  Reliability
¤  Performance
¤  Supportability
¨  FURPS+
¤  design constraints
¤  implementation
requirements
¤  interface requirements
¤  physical requirements
29 November 2012
10

technical & non tech. requirements
¨  Legal requirements
¤  Data privacy, SOX
¨  Regulatory reqs
¤  Solvency II, Basel III
¨  Policy
¤  Computer security
¨  Recommandations
¤  W3C, IETF (RFC,
Internet Standards)
¨  Standards
¤  HTML, UNICODE, ISO,
ECMA, IANA, Java
Specification Requests
¨  Non-standards
¤  Silverlight, Flash, XUL
29 November 2012
11

Methods – Naming convention
12

Methods - Enterprise architecture
13
Dataarchitecture
Securityarchitecture
Strategy
architecture
Business
architecture
Application
architecture
Technical / Infra
architecture

IAGL (Conception et architecture
logiciel)
14
¨  Software engineering
¤  Architecture
n  Service Oriented Architecture (SOA)
n  Web Services using SOAP / REST
¤  Programming paradigm
n  Aspect-Oriented programming
n  XP Extreme Programming
¤  Software development process
n  Test-Driven Development
n  Continuous integration
¤  Code generation

logiciel)
15
¨  App server – middleware
¤  Java EE
¤  .NET
¨  Architecture
¤  SCA (isn't dead?)
¤  Enterprise Service Bus
¨  Frameworks
¤  Hibernate
¤  Spring
¤  Struts
¤  Java Server Faces (JSF)

logiciel)
16
¨  Programming language
¤  C++ / Objective-C / C#
¤  Java, ADA, Cobol, VB
¤  HTML, CSS, JavaScript
¤  WSDL, XML, Json
¨  Framework - platform
¤  Django
¤  Microsoft .NET – J(2)EE
¤  Bootstrap Twitter – jQuery
¤  Application Server – Enterprise Service Bus - Cloud

logiciel)
¨  Database design
¤  Backus-Naur Form
¤  1st-2nd-3rd Normal
Form
¨  Database engine
¤  Oracle, MySQL
¤  NoSQL: MongoDB
¨  Security
¤  See next slides
29 November 2012
17

Methods - Enterprise architecture
18
Dataarchitecture
Strategy
architecture
Business
architecture
Application
architecture
Technical / Infra
architecture

TIIR (Systèmes, Réseaux, Sécurité)
19
¨  Network and system security through crypto, VPN,
IPSec, OWASP-10
¨  Infrastructure and Frameworks
¨  Distributed algorithms (MongoDB)
¨  Architecture and Network technologies like Wi-Fi,
TCP/IP, ATM

Security analysis
R4eGov project
20
Security and Organisational
Control Requirements
- Collaboration
- Transactions
- Basic Security Services
- Rights Management
- Privacy
Cross-Organisational
Workflow
privatepublic
publicprivate
private
public
A
A
A B
B
B

Security analysis
R4eGov project
21
Coordination
ACID-Properties
Advanced Transaction Models
Pivot, Compensate, Retry
Mixed/Atomic Outcome
Time constraints
Enforcement (of steps)
- Collaboration
- Transactions
- Privacy

Security analysis
R4eGov project
22
- Collaboration
- Transactions
- Privacy
Data Integrity
Non-Repudiation
Time Stamping
Authentication
Confidentiality
Traceability / ‘Structured Proof’
Assurance

Security analysis
R4eGov project
23
Access Control
Revocation
Delegation
Separation of Duties
Obligation of Duties
- Collaboration
- Transactions
- Privacy

Security analysis
R4eGov project
24
Unlinkability / Unobservability
Anonymity / Pseudonymity
Data Control / Obligation Management
- Collaboration
- Transactions
- Privacy

MOCAD (Modèles complexes,
algorithmes et données)
25
¨  Design methodologies
¤  Multi-criteria Decision Aid method: PROMETHEE
¤  Forecast: Moving Average, Winters Exponential
smoothing

MOCAD (Modèles complexes,
algorithmes et données)
26
¨  Big Data analysis
¤  Web pages
¤  Social networks
¤  Domain based information
n  Justice
¤  Geolocation
¤  Electronic documents

Development Lifecycle
27
Use case
agreement
Technical
requirement
proposal
Software
development
Testing
Deployment

Web & Mobile application design
E-services28
alt-f1 sprl - Université de Lille1 Master informatique - Les conférences du Jeudi 29 November 2012

Evolution: unified communications &
technology29
10 years ago, different devices for
almost every type of interaction
Now, all interaction types
integrated in one device
29 November 2012

E-services (Web & Mobile app design)
¨  Chrome (34%)
¨  IExplorer (32%)
¨  Firefox (24%)
¨  Safari (7%)
¨  Opera (2%)
¨  Mobile (8%)
Source: http://bit.ly/O8o25M (July 2012)
¨  Android (23%)
¨  iPhone (21%)
¨  Opera (20%)
¨  Nokia (10%)
¨  BlackBerry (5%)
¨  iPod touch (4%)
Source: http://bit.ly/O8o25M (July 2012)
30
Web browser Mobile browser
29 November 2012

Android Dashboard
31
29 November 2012
Source: http://developer.android.com/about/dashboards/index.html

32
Vocal interfaces Multi-touch interfaces
29 November 2012

Cloud computing or disguised Application
Service Provider?
use of computing resources delivered
as a Service over a network
33

Infrastructure as a Service (IaaS)
34
¨  …to provision processing, storage, networks, and
other fundamental computing resources where
the consumer is able to deploy and run arbitrary
software…
¨  …consumer DOES NOT manage or control the
underlying cloud infrastructure but has control over
[it]…
¨  … possibly limited control of select networking
components (e.g., host firewalls)
Source: Mell, P., & Grance, T. (2011, September). The NIST Definition of Cloud Computing. Gaithersburg, Maryland, U.S.A.: National Institute of Standards and Technology.
29 November 2012

Platform-as-a-Service (PaaS)
35
¨  …to deploy onto the cloud infrastructure
consumer-created or acquired applications
created using programming languages and tools
supported by the provider
¨  … The consumer DOES NOT manage or control the
underlying cloud infrastructure…
¨  … [but consumer] but has control over the deployed
applications and possibly application hosting
environment configurations
29 November 2012

Software-as-a-Service (SaaS)
36
¨  …to use the provider’s applications running on a
cloud infrastructure…
¨  The applications are accessible from various client
devices through a thin client interface such as a web
browser (e.g., web-based e-mail)
¨  The consumer DOES NOT manage or control the
underlying cloud infrastructure … with the possible
exception of limited user-specific application
configuration settings
29 November 2012

IaaS
•  Amazon Elastic Compute
Cloud
•  Google infrastructure
•  Microsoft Cloud infrastructure
•  Rackspace
•  Computer Sciences
Corporation
•  Terremark
•  Bluelock
•  Savvis
PaaS
•  Google App Engine
•  Heroku
•  Engine Yard
•  AppScale
SaaS
•  Google Apps
•  Salesforces
•  Zoho
•  Office365 - Hotmail
Cloud-as-a-Service (I/P/SaaS)
37
processing, storage,
networks
Consumer created or
acquired applications
networks
Provider’s applications
Consumer created or
acquired applications
networks
29 November 2012

How much does it cost to deliver value to your
customer?
Paran Yo
29 November 2012
38

15$/1 million views without
business complexity
39

Architecture -15$/1 million views
without business complexity
User
Internet
Services: TaskQueue, Mail, Image, Fetch, Users
Python 2.5
Memcached API
Memcache transient
GQL – Query Object
DataStore persistent
40

GAE SDK 1.6.5
Webapp1 APIs libraries
Google
analytics
Google
charts
OpenId
2.0
Users api
41

Model
Datastore
View
Bootstrap
Twitter
2.0.3
CSS 3 HTML 5
Controller
Django
1.2 (MTC)
10/05/2012ydo@alt-f1.be
42

43

GAE Application: How to budget the
deletion of 5000 records in a table?
44
how to compute the cost of deleting 5000 records from a table containing five
columns of string type. We assume that each column is indexed and there is no
composite index.

60$/1 million views with business
complexity
45

60$/1 million views with business
complexity
46

Architecture - 60$/1 million views
with business complexity
Model
Datastore
View
Bootstrap
Twitter
2.0.3
jQuery
1.7.2
CSS 3 HTML 5
Controller
Django
1.2 (MTC)
10/05/2012ydo@alt-f1.be
47

Legal, regulations, investigations and compliance
The importance of the standards
29 November 2012
48

I used to be blind, now I see!
49

Architecture - 7$/1 million views
with business complexity
GAE SDK 1.7.3
Webapp2 APIs libraries
Google
analytics
Google
charts
OpenId
2.0
Users api
10/05/2012ydo@alt-f1.be
50

Technical summary
Paran Yo
29 November 2012
51

Case study: Paran Yo
¨  Cloud computing
¨  Platform-as-a-Server (PaaS)
¤  High availability
¤  Scalability
¤  Google App Engine
¨  NoSQL
¨  Creational design patterns
¤  Abstract factory
¤  Lazy initialisation (jQuery)
¨  Structural design patterns
¤  Decorator (Python)
¤  Front controller (app.yaml)
¨  Behavioral pattern
¤  Chain of responsibility (url
patterns)
¤  Iterator
¤  Mediator (middleware
django)
¨  Architectural pattern
¤  Model-View-Controller
52

Technical specifications
¨  Webapp2
¨  python2.7
¨  WTForms
¨  Tech spec
¤  GAE SDK 1.6.5
¤  datastore
¤  Bootstrap Twitter 2.0.3
¤  Google analytics
¤  Google charts
¤  Python Image Library
(PIL)
¤  Memcache
¤  TaskQueues
¤  OpenId 2.0
¤  Django 1.2
¤  jQuery 1.7.2
¤  Users api
53

Be carefull, « walking in my shoes »
¨  All previous slides are
useless if you don’t know
what your customer
wants!
¤  Public/Private company
¤  Individuals
¤  Handicap
¤  Culture
54

We have talked about the costs, now let’s see
how to make money?
Incomes - Earnings
29 November 2012
55

On internet, how to earn money?
¨  Subscription fees
¤  Free + Advertising
¤  Freemium
¤  Premium
¨  Open Source model
¤  Free software but
support is invoiced
¨  Brokerage fees
Affiliates
¤  Amazon associates
¤  iTunes Connect
¤  Google AdSense
¤  eBay affiliates
¤  Online advertising
¤  Ancillary revenues
56

Tips
Almost the end
29 November 2012
57

Performance best practices
58
¨  Optimizing caching (leverage browser caching)
¨  Minimizing round-trip times (parallelise downloads
across hostnames)
¨  Minimizing request overhead (Cookies)
¨  Minimizing payload size (minify the code)
¨  Optimizing browser rendering (specify everything)
¨  Optimizing for mobile (Defer JavaScript loading)
Source: https://developers.google.com/speed

Tips
59
¨  Have you developed a proof of concept
¨  ... using a complex use case
¨  ... running under the selected software architecture?
29 November 2012

Tips
60
¨  Read the financial reports
¤  investor.google.com - investor.fb.com
¤  www.coca-colacompany.com/investors
¨  Check slideshare.net
¨  Find valuable documents with Google with
¤  filetype:pdf pptx xlsx etc.
¨  Register to (but expensive)
¤  safaribooksonline.com
¤  books24x7.com
¤  getabstract.com

Tips
61
¨  Develop a mindset, adapt to change, work in team
¨  Speak like a business man, code like a geek
¨  Put in place an Escrow, Backup strategy & Source
Control first
¨  Do not set the “automatic updates”
¨  Document briefly your code but extensively your
architecture and processes
¨  Focus on innovation and how to bring value to the
business using your IT knowledge

Tips
62
¨  Integration projects are key
¨  Be bold in technologies applicable in multiple
domains
¨  Don’t try to become a project manager nor a
business analyst (it’s boring)
¨  Facilitate the life of your users, they are always
right!

Project manager
63
¨  Run Forest, Run! (after the others)
¨  Value and report on Risk, EAC, ETC, Actuals, delays,
changes
¨  Learn what is important for the business (P&L)

Break the stereotypes
Who want to be a millionaire
29 November
2012
64

Apple and its closed architectureDataarchitecture
Strategy
architecture
Business
architecture
Application
architecture
Technical / Infra
architecture
¨  Impact of the App
store for the
developer?
29 November 2012
65

Questions
66
What is the minimum daily rate you should be sold just
after your graduation (in Belgium)?
Who earns the best salary (5 years experience)
A.  Software developer (Java, .NET, etc.)
B.  Visual Basic developer for Soft architecture

Questions
67
¨  in 2006, for a net salary of 25.000 EUR, you cost
¤  62.000 EUR in Belgium
¤  49.000 EUR in the Netherlands
¤  37.000 EUR in UK
¤  35.000 EUR in Luxembourg

Questions
68
¨  in 2006, for 1.000 EUR net increase, you cost
¤  3.300 EUR in Belgium
¤  1.700 EUR in the Netherlands
¤  1.500 EUR in UK
¤  2.100 EUR in Luxembourg

Keep this in mind
69
¨  How can IT capabilities support business strategy?
¨  How can business strategy be created/transformed
through IT?

Q&A
Managing Partner
ALT-F1 SPRL/BVBA
Abdelkrim BOUJRAF
@: abo@alt-f1.be
W: www.alt-f1.be
M: +32 (0)497 480.970
70
29 November 2012
Twitter: @abdelkrim

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