managing information: information technology architecture infsy 540 dr. r. ocker

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  • Slide 1
  • Managing Information: Information Technology Architecture Infsy 540 Dr. R. Ocker
  • Slide 2
  • Strategy n What is a business strategy?
  • Slide 3
  • Strategy n What is the relationship between IT and the business strategy?
  • Slide 4
  • managers dilemma managers dilemma: n cannot leave important IT decisions to computer professionals to make alone, but managers are not technically competent to make the right decisions without technologists
  • Slide 5
  • managers dilemma n dilemma resolved by developing an information technology architecture bridge between strategy and technology defines a companys IT infrastructure includes policies and guidelines that govern the IT resources computers, data, software, communications facilities
  • Slide 6
  • Link IS plan to business plan n Linkage achieved if corporate business plan states information needs IS plan refers to requirements of business plan & is checked against plan non-IS managers participate in IS planning process and vice versa corporate & IS planning calendars are in synch
  • Slide 7
  • Strategy n IT must support the business strategy n 3 dimensions of support content timing people involved in planning process
  • Slide 8
  • Information Technology Architecture n provides a structure to facilitate decision making about technology investment and use
  • Slide 9
  • Architecture is the metaphor n Architecture is the metaphor - building IT infrastructure n to build a skyscraper: owner starts with vision of building works with architect who translates vision into a plan
  • Slide 10
  • Architecture is the metaphor n builders uses plan to construct building n owner does not have expertise in structural engineering, but must have clear ideas of what and how the building will be used. n Must understand some basics of design in order to communicate vision to the architect.
  • Slide 11
  • Architecture is the metaphor n to build an IT architecture: n executives start with a vision of doing business vision has certain implications for information requirements n dont have technical computer expertise n do have clear idea of business strategy n must communicate this to IT architect/planner
  • Slide 12
  • Architecture is the metaphor n general managers must be able to effectively integrate IT into their vision for the organizations competitive strategy
  • Slide 13
  • Components of an IT Architecture n 1.Information technology inventory n 2.Functional use of the IT n 3.Strategic plan for the IT
  • Slide 14
  • 1. Information technology inventory n answers the question what do we have? n basic building blocks of an IT architecture hardware software data communications links
  • Slide 15
  • 1.Information technology inventory n this level is the hard technology from which most general managers are far removed n general manager should have a basic familiarity with computer systems to bridge the gap between his/her world and that of the IT architect; n IT architect must have a good understanding of the business and the organization
  • Slide 16
  • 2.Functional use of the IT n answers the question how do we use it? n baseline blueprint - IT components and functions already in place n planned blueprint - prescription for future IT investments and designs n general manager and IT architect communicate on this conceptual level n 3 functional categories:applications, data and communications
  • Slide 17
  • 3.Strategic plan for the IT n past - general managers were unfamiliar with technology and delegated IT architecture decisions to gurus n however, these experts in technology often had little knowledge of business strategies n now - cant afford this approach; technology too expensive and too important n business strategy must drive IT architecture strategy
  • Slide 18
  • Developing an IT Architecture n designing and building an architecture is an ongoing business process n goal - to reach consensus between the IS organization and the business leaders - not easy to do
  • Slide 19
  • Developing an IT Architecture Steps: n 1. articulate business strategy and implications for IT architecture n start from the top with the overall business strategy and its functional IT requirements n 2. baseline the company architecture n baseline blueprint - assess existing IT n bottom-up approach
  • Slide 20
  • Developing an IT Architecture Steps: n 3.determine key architecture questions n outline set of questions to be answered, such as: what technologies do we have? are these the right technologies? how does the current architecture support our business? are we getting a strategic advantage from our architecture?
  • Slide 21
  • Developing an IT Architecture Steps: n then look into the future to the planned blueprint: in what technologies should we invest? how should it be structured? how will it give us a competitive advantage? should we outsource any functions? etc.
  • Slide 22
  • Developing an IT Architecture Steps: n 4.design a planned architecture blueprint n decide what the architecture should be
  • Slide 23
  • Developing an IT Architecture Steps: n 5.initiate the architecture plan n two approaches - revolutionary vs. evolutionary n revolution - radical replacement of old technology n evolution - new technology layered on top of existing infrastructure; old systems gradually replaced over time
  • Slide 24
  • Understand? Questions?