Architecture Evaluation - Revision history

Suhridk at 11:46, 23 April 2012

2012-04-23T11:46:56Z

2012-04-10T00:26:55Z

CBAM Steps

2012-04-10T00:21:44Z

1. Collate scenarios

2012-04-10T00:21:04Z

CBAM Steps

2012-04-10T00:14:59Z

Arch strategies

2012-04-10T00:06:55Z

Utility

2012-04-09T23:34:43Z

CBAM

2012-04-09T23:09:02Z

CBAM

2012-04-09T23:03:00Z

CBAM

2012-04-09T22:53:17Z

9. Present Results

← Older revision		Revision as of 11:46, 23 April 2012
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	==== 9. Confirm results with intuition ====		==== 9. Confirm results with intuition ====
	* Consider if they align with org's business goals.		* Consider if they align with org's business goals.
		+
		+	[[Category:SYAR]]

@@ Line 168: / Line 168: @@
 ==== 2. Refine scenarios ====
 ==== 3. Prioritize scenarios ====
 ==== 4. Assign Utility ====
 ==== 5. Develop arch strategies and determine QA response levels ====
 ==== 6. Determine expected utility value of arch strategy using interpolation ====
 ==== 7. Calculate total benefit from arch strategy ====
 ==== 8. Choose arch strategies based on ROI subject to cost constraints ====
 ==== 9. Confirm results with intuition ====

@@ Line 163: / Line 163: @@
 ==== 1. Collate scenarios ====
 ==== 2. Refine scenarios ====
 ==== 3. Prioritize scenarios ====

← Older revision		Revision as of 00:21, 10 April 2012
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	=== CBAM Steps ===		=== CBAM Steps ===
		+
		+	==== 1. Collate scenarios ====
		+	==== 2. Refine scenarios ====
		+	==== 3. Prioritize scenarios ====
		+	==== 4. Assign Utility ====
		+	==== 5. Develop arch strategies and determine QA response levels ====
		+	==== 6. Determine expected utility value of arch strategy using interpolation ====
		+	==== 7. Calculate total benefit from arch strategy ====
		+	==== 8. Choose arch strategies based on ROI subject to cost constraints ====
		+	==== 9. Confirm results with intuition ====

← Older revision		Revision as of 00:14, 10 April 2012
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	* Effect on other attributes.		* Effect on other attributes.
	* Cost estimate for implementing the strategy.		* Cost estimate for implementing the strategy.
		+	* Determine benefit from normalization using formula.
		+
		+	=== Calculating ROI ===
		+
		+	* Ratio of Benefit to the Cost for a particular strategy.
		+
		+	=== CBAM Steps ===

@@ Line 136: / Line 136: @@
 == Utility ==
 * CBAM uses a set of scenarios rather than a single scenario in ATAM. The set of scenarios are generated by varying the values of the responses.
 * Every stimulus - response pair in a scenario provides some utility to the stakeholder. Utility of different possible values for the response can be compared.
 * The utility-response curve depicts how the utility derived from a particular response varies as the response varies.

← Older revision		Revision as of 23:34, 9 April 2012
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	* Each arch decision has a cost. For e.g. redundant HW for high avail has a cost. This can result in a benefit for the org.		* Each arch decision has a cost. For e.g. redundant HW for high avail has a cost. This can result in a benefit for the org.
	* CBAM elicits these costs and benefits - so that stakeholders can decide whether to use the tactic to achieve availability. Choose arch. strategies based on their ROI - ratio of benefit to cost.		* CBAM elicits these costs and benefits - so that stakeholders can decide whether to use the tactic to achieve availability. Choose arch. strategies based on their ROI - ratio of benefit to cost.
		+
		+	== Utility ==
		+
		+	* CBAM uses a set of scenarios rather than a single scenario in ATAM. The set of scenarios are generated by varying the values of the responses.
		+	* Every stimulus - response pair in a scenario provides some utility to the stakeholder. Utility of different possible values for the response can be compared.
		+	* The utility-response curve depicts how the utility derived from a particular response varies as the response varies.

@@ Line 132: / Line 132: @@
 * CBAM's goal is to maximize the difference between the benefit derived from the system and the cost of implementing the design.
 * Each arch decision has a cost. For e.g. redundant HW for high avail has a cost. This can result in a benefit for the org.
-* CBAM elicits these costs and benefits - so that stakeholders can decide whether to use the tactic to achieve availability.
+* CBAM elicits these costs and benefits - so that stakeholders can decide whether to use the tactic to achieve availability. Choose arch. strategies based on their ROI - ratio of benefit to cost.

← Older revision		Revision as of 23:03, 9 April 2012
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	* CBAM builds on ATAM to model the costs and benefits of architectural design decisions and is a means of optimizing such decisions.		* CBAM builds on ATAM to model the costs and benefits of architectural design decisions and is a means of optimizing such decisions.
	* CBAM's goal is to maximize the difference between the benefit derived from the system and the cost of implementing the design.		* CBAM's goal is to maximize the difference between the benefit derived from the system and the cost of implementing the design.
		+	* Each arch decision has a cost. For e.g. redundant HW for high avail has a cost. This can result in a benefit for the org.
		+	* CBAM elicits these costs and benefits - so that stakeholders can decide whether to use the tactic to achieve availability.

← Older revision		Revision as of 22:53, 9 April 2012
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	* Arch approaches, utility tree, discovered risks, non risks, sensitivity points and trade-offs.		* Arch approaches, utility tree, discovered risks, non risks, sensitivity points and trade-offs.
	* Value addition by grouping risks into risk themes and relate them to business drivers.		* Value addition by grouping risks into risk themes and relate them to business drivers.
		+
		+	= CBAM =
		+
		+	* Cost Benefit Analysis Method
		+	* ATAM misses an important consideration - the economic cost of tradeoffs.
		+	* CBAM builds on ATAM to model the costs and benefits of architectural design decisions and is a means of optimizing such decisions.
		+	* CBAM's goal is to maximize the difference between the benefit derived from the system and the cost of implementing the design.