BCIS
IT Service Provision Week 5 , Session 5, Pattern for the IT processes

IT Service Provision Week 5 , Session 5, Pattern for the IT processes

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406031 IT Service Provision Week 5 – Pattern for the IT processes
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1.1 Agenda for today IT processes principles Access demand patterns Execute project patterns
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1.2 Learning objective To u nderstand the concept of IT service design pattern analysis. The concept of pattern for IT processes and processes management To understand the integration of project management systems The concept of release and Demand management
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2. IT service Design pattern Patterns for the IT Processes IT Process Principles Processes management
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2.1 IT service Design pattern In software engineering, a design pattern is a general solution to a common problem. A design pattern can be transformed directly into code It is a description or template for how to solve a problem that can be used in many different situations. Design patterns provide a valuable tool chest for the systems or software engineer that can reduce design uncertainty. Recently, the concept of patterns, originating in building architecture and city planning, has been applied in computing. Wikipedia Definition for design pattern (Computer Science), 2015
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2.2 Patterns for the IT Processes The patterns for IT processes focus especially on breaking down the functional boundaries between: IT planning, solution development and service management Pattern in service context can be expressed as data, system, or interaction models , and sometimes they are simply expressed as narrative.
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2.3 Patterns for the IT Processes A pattern language in IT service, is a method of outlining good design principle and practices within a field of IT expertise. In IT service, patterns are expressed as data, system, or interaction models, and sometimes they are simply structured as: Patterns for IT processes Patterns for IT lifecycles Source: Wikipedia definition for design pattern (Computer Science), 2015
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2.4 Elements of Design Patterns Design patterns have 4 essential elements: Pattern name Problem: intent, context, when to apply Solution: UML-like structure, abstract code Consequences: results and tradeoffs
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2.6 Design Patterns are NOT Data structures that can be encoded in classes and reused as is (i.e., linked lists, hash tables) Complex domain-specific designs (for an entire application or subsystem) They are: “Descriptions of communicating objects and classes that are customized to solve a general design problem in a particular context.”
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2.7 Patterns for the IT Processes The more formalized patterns are interspersed with various essays and extended discussions providing context and point of view Major IT processes that can be represented in pattern: Accept Demand Execute Project Deliver Release
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