Towards a Formalism as long as System Architecture From Value to Architecture Architecture

Towards a Formalism as long as System Architecture From Value to Architecture Architecture www.phwiki.com

Towards a Formalism as long as System Architecture From Value to Architecture Architecture

DelGuzzi, Kristen, National Editor has reference to this Academic Journal, PHwiki organized this Journal Towards a Formalism as long as System Architecture From Value to Architecture Prof. Ed Crawley in addition to Willard Simmons October 20, 2006 Outline of Today The challenge A bit of theory Architecting as long as value delivery Architecting as long as value, a new way The Challenge We conceive, design, implement in addition to operate really complex in addition to sometimes unprecedented systems Are they architected well Do they meet stakeholder needs How do we better define interfaces as long as more reliable integration How do we adapt to new environments How do we evaluate the value of commonality

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Architecture Architecture The embodiment of concept, in addition to the allocation of physical/in as long as mational function to elements of as long as m, in addition to definition of interfaces among the elements in addition to with the surrounding context. Consists of: Function Related by Concept To Form Form Function Concept Architecture – Mechanical Cable-stayed bridge Suspension Bridge Source – www.bridgepro.com Concept Function Form Interfaces Context Architecture – Communications Insert scanned image of cannon camera system Concept Function Form Interfaces Context

Are these Good Architectures Do these architectures: Respond to stakeholder needs in addition to deliver value Rely on creative solutions Provide leverage within one project Good interface control Cross project st in addition to ardization Architecture is the primary link between benefit in addition to cost! Early = high leverage on an organization’s activities Source of competitive advantage Alignment with the role many of our organizations do in development – architecting is what we do! Key Questions in Architecture How can we represent architectures How can we rigorously search the option space How can we select an architecture that has desirable value delivery How can we identify the decisions that lead to the selection of a preferred architecture Objects Defined: An object is that which has the potential of stable, unconditional existence as long as some positive duration of time Can be physical: visible or tangible in addition to stable in as long as m Can be in as long as mational: anything that can be apprehended intellectually Objects have states (which can be changed by processes) Objects are linked to nouns Object

The Whole Product System We usually architect as long as m which is both a product in addition to a system, in addition to which we designate the product/system Often as long as the product/system to deliver value, it must be joined in addition to supported by other supporting systems Together, the product, plus these other supporting systems, constitute the whole product system. Whole Product System Product/ System Supporting Systems Oper in addition to The product/system almost always operates on an oper in addition to It is the change in the state of an oper in addition to that is associated with the delivered value of the product system Focus the analysis or synthesis of an architecture on the oper in addition to in order to underst in addition to the delivery of value Oper in addition to Whole Product System Product/ System Supporting Systems Boundaries The product/system is separated from other supporting systems in addition to the oper in addition to by a boundary The boundary is vital to the definition of architecture, because it defines: What you architect, eventually deliver in addition to are responsible as long as What is “fixed” or “constrained” at the boundaries Everything that crosses a boundary must be facilitated by an interface Interfaces tend to be the most stable aspect of an architecture

Product System Questions What is the value related oper in addition to What is the product system What are the supporting systems What are the interfaces What is the use context Product – Whole Product – Context Food Outside Air Inside Air Operator Outlet Floor Refrigerator Whole Refrigerator System Kitchen Etc. Counters Other appliances Cabinets Product/system boundary Whole product system Usage context Form = Objects + Structure Defined: The relationship among the elements of as long as m, which we call the objects Can be physical: visible or tangible in addition to stable in as long as m Can be in as long as mational: anything that can be apprehended intellectually NB: does not imply contact, but only interrelationship Can represent ‘ as long as mal’ relationships: Topological (within, touching) Spatial (aligned with, distant from) Connectivity (bolted to, wired to) Good practice is to specify what a connection or matrix entry means Object 1 Object 2 Object 3

Processes Defined: A process is the pattern of trans as long as mation applied to one or more objects Cannot hold or touch a process – it is fleeting Generally creation, change, or destruction A process relies on at least one object in the pre-process set A process trans as long as ms at least one object in the pre-process set A process takes place along a time line A process is associated with a verb Processing Process is Associate with Form Change voltage proportional to current Change voltage proportional to charge React translation as long as ces Carry moment in addition to shear Resistor Capacitor Pin Support Beam Emergence As elements of as long as m are brought together, new processes emerge Processes do not combine in any “linear” way – it is often difficult or impossible, a priori, to predict the emergent process In design, the expected process function may appear, may fail to appear, or an unintended process may appear It is exactly this property of emergence that gives systems their “power”- definition of ‘system’: A set of interrelated elements that per as long as m a function, whose functionality is greater than the sum of the parts

External Function Produces Benefit The project/system always executes externally delivered functions = process + oper in addition to Transport Oil Power Equipment Support Plat as long as m Sort Array It is the external function that delivers benefit, in addition to there as long as e value, of the project system The as long as m generally is an instrument of delivering benefit, but is not unique to the benefit delivery If a competitor delivers the same function with another object which is superior, they will displace you 610 Semantically Exact Representation with OPM Architecture is made up of oper in addition to s + processes (functions) plus instrument object ( as long as m) Examples: Material is transported by ship Oil is transported with a pump Equipment is powered by an electric generating plant Plat as long as m is supported by a spar Array is sorted by bublesort routine Processing Instrument Object Oper in addition to Function Form 610 Architecting “Up in addition to Down” Stakeholder – Needs Value – Intent Concept Architecture Operations Synthetic Process

Needs of Stakeholders Need is a product attribute Need is defined as: an overall desire or want a necessity a wish as long as something which is lacking Can also include opportunities to fill unexpressed or unrecognized needs Value Identification – Goals on Externally Delivered Process Next examine the oper in addition to associated with value Identify the attribute of the oper in addition to whose change is associated with value Define the trans as long as mation of the attribute associated with value, in solution neutral as long as m in addition to its attributes Solution neutral trans as long as ming Attribute of trans as long as ming Beneficial Attribute Oper in addition to Other Attribute Beneficiary Need Intent This will lead you to a value focused solution neutral statement of intent on process Value Identification – Refrigerator Beneficiary = kitchen worker Need “my food rots too fast” Oper in addition to = food Value attribute = spoilage rate Trans as long as mation = slowing Slowing How much Spoilage rate Food Kitchen worker Identifying/ Incorporating Value Identification 610

DelGuzzi, Kristen Arizona Republic National Editor www.phwiki.com

Solution Neutral to Specific Function Next identify the specific oper in addition to (if not the same as the generic oper in addition to ), in addition to its specific beneficial attribute Then choose a the process part of the concept which specializes the solution neutral process Define attributes of the process Solution neutral trans as long as ming Specific system Operating Attribute of operating Attribute of trans as long as ming Beneficial Attribute Oper in addition to Specific Oper in addition to Beneficial Attribute Beneficiary Need Intent Function 610 Concept – Definition A product or system vision, idea, notion, or mental image which maps Function to Form Embodies principle of operation Includes an abstraction of as long as m Establishes the solution-specific vocabulary – it is the solution Is not a product/system attribute, but a mapping Concept – Formal Definition The combination of: The specific system operating process enabled by the generic as long as m object specialized as a specific system as long as m. Concept Specific system Operating Specific System as long as m Generic Concept as long as m Solution neutral process Specializes Agent Link

Concepts – Preserving Food Solution neutral statement is: ‘preserving food’ Solution specific processes: chilling, freezing, etc. Solution specific as long as m as long as chilling: refrigerator, cooler, etc. Concept is chilling with a refrigerator Preserving Chilling Refrigerator Chiller Food Cooler Irradiating Freezing Selected Concept Specific Function to Specific Form Next choose the generic in addition to specific as long as m part of the concept to execute the specific process Define the attributes of the as long as m Specific system Operating Specific System as long as m Attribute of as long as m Generic Concept as long as m Solution neutral trans as long as ming Attribute of operating Attribute of trans as long as ming Beneficial Attribute Oper in addition to Specific Oper in addition to Beneficial Attribute Beneficiary Need Intent Function Form Complete Value Template – Refrigerator Slowing Chilling Refrigerator 16 ft3 Chiller By 90% Spoilage rate Food Efficiently At 40 Kitchen worker Need Intent Function Form 610

Key Questions in Architecture – Being Addressed! How can we represent architectures How can we rigorously search the option space How can we select an architecture that has desirable value delivery How can we identify the decisions that lead to the selection of a preferred architecture A New Research Partnership University Research Education Industry Gov Labs “Laboratory” Learners Flow-down Results Org. Change Critique

DelGuzzi, Kristen National Editor

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