Overview of Enterprise Computing:

1
Overview of Enterprise Computing

• The Business View

2
Agenda

• What is an enterprise?
• What constitutes an enterprise?
• What drives an enterprise?
• How does an enterprise meet its goals?
• What is enterprise computing (EC)?
• What is the nature of an EC environment?
• What are key enterprise development roles?
• What makes a good enterprise application?

3
An Enterprise is...

• any organization with set goals

U.S. Engineering
Asian Warehousing
Finance
Asian Engineering
North American Warehousing
Headquarters
Sales Marketing
Mexican Manufacturing
Asian Manufacturing
African Warehousing
Australian Warehousing
South American Warehousing
4
An Enterprise is...

• its physical, human, corporate and intangible
  resources/assets

Human/corporate Employees, customers, partners,
etc.
Physical Buildings, land, equipment, etc.
Intangible Patents, processes, trade secrets,
good will, data, knowledge, etc.
5
Enterprise Goals

• Make and save money
• Grow and expand operations
• Grow and expand human/inter-enterprise
  associations
• Share information throughout enterprise
• Leverage existing infrastructure
• Manage change and risk
• respond to customers, technology, climate

6
Activities that Support Goals

• Preserving resources/assets
• Durability/Maintenance
• Protecting/granting accessibility to
  resources/assets
• Security
• Growing/expanding resources/assets
• Development
• Improving efficiencies
• Performance/Scalability
• Detecting and responding to changes
• Flexibility

7
Enterprise Computing (EC)
Enterprise computing involves the development,
deployment and maintenance of the information
systems required for survival and success in
todays business climate. Yen-Ping Shan Ralph
H. Earle, Enterprise Computing with Objects,
Addison-Wesley, 1998.
8
EC Environment

• computers are typically dispersed over a wide
  area
• old (legacy) applications need to be
  used/maintained
• very large databases
• (e.g., tens of databases (DB), hundreds of tables
  per DB, thousands to millions of records per
  table)
• hundreds to thousands/millions of clients
• heterogeneous
• computers, client devices, networks, applications
• constantly-changing business requirements
• mission-critical applications
• requires reliability and performance

9
Handling Complexity

• Planning and Architecting
• Analyzing and Organizing
• Measuring/Tracking and Adjusting/Tuning
• Reusing
• Reviewing and Reiterating
• Applying Object-Oriented Principles

10
Enterprise Developer Roles

• Architect
• overall design and integration with environment
• Application domain expert
• imparts knowledge of domain business logic
• Application assembler
• assembles and tests components of application
• Deployer
• distributes, tailors and configures application
• System administrator
• manages development, deployment and production
  environments

11
Enterprise Application Qualities

• extensible -- allows for future changes with
  minimal impact
• scalable -- gracefully handles expansion/contracti
  on in number of clients
• usable/reliable -- functions as advertised,
  including error-handling
• available -- can be used whenever needed
• configurable -- can be adapted to diverse
  environments
• deployable -- can be easily distributed to users
• durable -- necessary information lasts/persists
  over time
• efficient/responsive -- uses minimal
  resources/performs well for clients
• unobtrusive -- doesnt get in the way of getting
  things done
• secure -- only authorized clients can access
• reusable -- many parts can be reused rather than
  re-created
• maintainable -- can be fixed with minimal impact
• timely -- is ready to use productively during
  window of opportunity