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Evaluating TOE. Common Evaluation Methodology (CEM). A method of applying the CC requirements consistently and uniformly during evaluation of TOE Describes the minimum actions that an evaluator must perform in order to conduct an evaluation of a PP, ST, and TOE. Principles of Evaluation.

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common evaluation methodology cem
Common Evaluation Methodology (CEM)
  • A method of applying the CC requirements consistently and uniformly during evaluation of TOE
  • Describes the minimum actions that an evaluator must perform in order to conduct an evaluation of a PP, ST, and TOE
principles of evaluation
Principles of Evaluation
  • Appropriateness – Evaluators will perform their duties to meet their responsibilities as consistent with the targeted EAL
  • Impartiality – Evaluator’s evaluation will be impartial without any conflicts of interest
  • Objectivity – Evaluator’s will perform their duties with minimum subjectivity or opinion
  • Repeatability and reproducibility – Evaluators will achieve the same results given the same TOE and supporting evidence
  • Soundness of results – Results will be complete and accurate
parties involved in the evaluation process
Parties involved in the evaluation process
  • Sponsor –
    • User, industry group, government or other entities that want a product evaluated
    • Responsible for establishing the agreements necessary to perform the evaluation
    • Support the evaluator (evaluation evidence, training and other support)
    • Funds the process
parties involved in the evaluation process1
Parties involved in the evaluation process
  • Developer
    • Actual producer of the TOE
    • Supports evaluation by producing and maintaining the evaluation evidence
parties involved in the evaluation process2
Parties involved in the evaluation process
  • Evaluator
    • Laboratory certified by the overseer
    • Performs duties as specified by the CC
    • Receives the evaluation evidence
    • Requests and receives support from the overseer
    • Documents with supporting evidence the overall verdict and any conditional verdicts.
parties involved in the evaluation process3
Parties involved in the evaluation process
  • Overseer
    • Validation body. CC organization of the country
    • Assures through use of an appointed validator
    • Provides guidance and interpretations of the CC
    • Approves or disapproves the overall verdict
evaluation process preparation phase
Evaluation Process – Preparation Phase
  • Sponsor contacts the evaluator to begin process of evaluation under the CC
  • Sponsor or developer supplies the evaluators the evaluation deliverables,
  • Feasibility study is conducted to develop
    • List of evaluation deliverables
    • list of evaluation activities,
    • sampling requirements in CC that the evaluation will address
  • Sponsors and evaluators sign an agreement to establish the framework for evaluation
evaluation process conduct phase
Evaluation Process – Conduct Phase
  • Evaluator develops the evaluation actions based on the deliverables
  • Evaluator may write observation report (OR) to seek clarification from the overseer
  • Evaluator may identify a potential weakness and seek additional information from the developer or sponsor
conclusion phase
Conclusion phase
  • Evaluator gives the Evaluation technical report (ETR) to the overseer
evaluator verdicts
Evaluator verdicts
  • Pass: Requirements for the PP, ST or TOE are met
  • Fail: Requirements for the PP, ST or TOE have not been met
  • Inconclusive: Default status until the evaluator either passes or fails the product.
    • All constituent verdicts must pass to receive an overall pass verdict.
evaluation technical report etr
Evaluation Technical Report (ETR)
  • ETR is used to justify the verdict of the evaluator