IS371 WEEK 5

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IS371 WEEK 5 Midterm submission Debate
reminder Homework 2 results on Wednesday
Your leadership style a little exercise
Hardware and Software Service Level Agreements
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Your Leadership Style Blake and Mounton
Leadership Style Evaluation Exercise
Below is a list of statements about leadership
behavior. Read each one carefully, then, using
the following scale, decide the extent to which
it applies to you.
never sometimes always
0 1 2 3 4
5
 
1. _______ I encourage my team to participate
when it comes decision-making time and I try to
implement their ideas and suggestions. 2.
_______ Nothing is more important than
accomplishing a goal or task. 3. _______ I
closely monitor the schedule to ensure a task or
project will be completed in time. 4. _______ I
enjoy coaching people on new tasks and
procedures. 5. _______ The more challenging a
task is, the more I enjoy it. 6. _______ I
encourage my employees to be creative about their
job. 7. _______ When seeing a complex task
through to completion, I ensure that every detail
is accounted for. 8. _______ I find it easy to
carry out several complicated tasks at the same
time. 9. ______ I enjoy reading articles,
books, and journals about training, leadership,
and psychology and then putting what I have read
into action. 10. ______ When correcting
mistakes, I do not worry about jeopardizing
relationships. 11. ______ I manage my time very
efficiently. 12. ______ I enjoy explaining the
intricacies and details of a complex task or
project to my employees. 13. ______ Breaking
large projects into small manageable tasks is
second nature to me. 14. ______ Nothing is more
important than building a great team. 15. ______
I enjoy analyzing problems. 16. ______ I honor
other people's boundaries. 17. ______
Counseling my employees to improve their
performance or behavior is second nature to me.
18. ______ I enjoy reading articles, books, and
trade journals about my profession and then
implementing the new procedures I have learned.
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TIME REMAINING
Blake and Mounton Leadership Style
Evaluation Exercise 10 minutes
MINUTES
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intersection
CHART YOUR PEOPLE TOTAL EXAMPLE
PEOPLE TOTAL 3
CHART YOUR TASK TOTAL EXAMPLE TASK TOTAL 7
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IT ARCHITECTURE AND INFRASTRUCTURE Architectu
re the PLAN / BLUEPRINT that shows how the
overall system and its parts interrelate.
TECHNOLOGY - Mainframe computer - Microcomputer
and workstation - Local area network servers -
Local area network hardware routers, switches,
gateways, hubs - Wide area network hardware -
Firewall hardware - Low voltage wiring and
cabling - Environmental systems electric power,
HVAC

• SYSTEM SOFTWARE
• Operating system
• Data base management system (DBMS)
• - Online transaction processing system (OLTP)
• - Middleware server
• Graphical User Interface client (GUI)

• DATA
• - Disk storage
• - Tape storage
• Storage control units

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CHARACTERIZED BY CLIENT-SERVER ARCHITECTURE
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INFORMATION SYSTEM ARCHITECTURE
3 FUNCTIONS
DATA STORAGE ACCESS
USER INTERFACE
APPLICATION PROGRAMS
CLIENT SERVER
SERVER
CLIENT
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CLIENT/SERVER CONFIGURATIONS DATA MANAGEMENT,
APPLICATION FUNCTION, PRESENTATION
DISTRIBUTED REMOTE
DISTRIBUTED REMOTE DATA DISTRIBUTED
PRESENTATION PRESENTATION FUNCTION
MANAGEMENT DATABASE
DATA MANAGEMENT
DATA MANAGEMENT
DATA MANAGEMENT
DATA MANAGEMENT
DATA MANAGEMENT
APPLICATION FUNCTION
APPLICATION FUNCTION
APPLICATION FUNCTION
DATA MANAGEMENT
NETWORK
PRESENTATION
APPLICATION FUNCTION
APPLICATION FUNCTION
APPLICATION FUNCTION
PRESENTATION
PRESENTATION
PRESENTATION
PRESENTATION
PRESENTATION
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3-TIER CLIENT/SERVER ARCHITECTURE
PREVALENT ARCHITECTURE TODAY THE 3
PROGRAM LAYERS ARE IMPLEMENTED AS SEPARATE
COMPONENTS PRESENTATION (INTERFACE ON
CLIENT) APPLICATION (BUSINESS LOGIC)
SERVICES (DATA) APPLICATION LOGIC
(APPLICATION LAYER) RUNS ON ITS OWN SERVER.
(APPLICATION SERVER) THE APPLICATION SERVER
MAY RUN ON THE SAME HARDWARE AS THE DATABASE
THE SERVER MAY BE LCATED IN THE BEST PLACE TO
FIT THE NEED. PRESENTATION LAYER DOES NOT
HAVE KNOWLEDGE OF THE DATABASE PRESENTATION
LAYER COMMUNICATES WITH THE APPLICATION SERVER
USING A PREDEFINED MESSAGE STRATEGY 2-TIER
RELATIONSHIP EXISTS BETWEEN APPLICATION SERVER
AND DATABASE SERVER.
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N-TIER CLIENT/SERVER ARCHITECTURE WILL
BECOME THE NORM THE n PROGRAM LAYERS ARE
IMPLEMENTED AS SEPARATE COMPONENTS
PRESENTATION GUI INTERFACE ON
CLIENT PRESENTATION LOGIC ON SERVER
APPLICATION (BUSINESS LOGIC)
SERVICES DATA ACCESS (I/O) DATA
STORAGE N-TIER ARCHITECTURE FACILITATES
SCALE-OUT AT FRONT-END RAIS (REDUNDANT
ARRAY OF INEXPENSIVE SERVERS) MIDDLE
MIDDLEWARE (VERSUS OPERATING SYSTEM)
BACK-END MULTIPLE POWERFUL SERVERS
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• Who is Edwards Deming?
• Quality guru emphasized
• - building quality into products versus
  inspecting for defects at the end of the cycle
• - continuous process improvement
• "Practically all of our major corporations were
  started by technical men - inventors, mechanics,
  engineers, and chemists, who had a sincere
  interest in quality of products. Now these
  companies are largely run by men interested in
  profit, not product. Their pride is in the PL
  statement or stock report."
• "Learning is not compulsory ... neither is
  survival."
• "Two basic rules of life are 1) Change is
  inevitable. 2) Everybody resists change."