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Criterion
Gap Analysis method illustration showing its working structure
Business Strategy
GAP Analysis
Paper illustration with architecture components and concrete change tasks for comparison.
Architecture
SAAM (Software Architecture Analysis Method)
Paper illustration for TOWS Matrix.
Business Strategy
TOWS Matrix
Paper illustration for Change Analysis.
Operations
Change Analysis
Purposedifferent
GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing.SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning.The TOWS Matrix connects internal strengths and weaknesses with external opportunities and threats into action-oriented strategies. It goes a step further than a pure stocktaking.For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise.
Complexitydifferent
MediumHighMediumMedium
Timedifferent
1-3 hPreparation, scenario analysis, and findings review; effort depends on scope1-2 h45-120 min
Participantsdifferent
2-8Architecture experts and stakeholders for scenarios and weighting3-102-6
Formatdifferent
Workshop + asyncWorkshop + asyncWorkshopWorkshop + async
Outputdifferent
Gap Matrix, Action Plan, Risk NotesDomain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternativesTOWS Matrix, Strategic Options, Priority ActionsChange Matrix, Cause Hypotheses, Validation Questions, Action List
Tagsno overlap
StrategyAnalysisPlanning
ArchitectureChangeAnalysisComparisonQuality
StrategyAnalysisOptions
ChangeRoot causeTroubleshootingComparison
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