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Research paper : Construction of a traceability matrix for high quality project management (A. Sakaedani et al.)−12−Synthesiology - English edition Vol.5 No.1 (2012) Reference materialsReference Material 1: Guideline for setting the difficultySetting the standard of difficulty of the element as 1, ranking is provided according to the following indices.In setting the ranking, the following should be noted.The standard is set as 1, and it is necessary to assign values from 0.1 to 1.9 by dividing by the number of elements to be surveyed within the same category. For example, if there are 10 elements but there are only three difficulty values, the difference of the difficulty level of the ten elements will be rounded off when the values are assigned, and as a result, the difference will be hard to see. Of course, there is no problem in setting the difficulty in three steps, if it is determined that the difficulty levels are truly the same. The figures are set from 0.1 to 1.9 because the upper and lower limits are set within the same range when 1 is set as the standard.Reference Material 2: Example of complexity calculation(r1, r2) is the vector that indicates the requirements, while (t1, t2) is the vector that indicates the teams.The complexity of the development project expressed by this system matrix is calculated. For interdependency, the component value of the matrix is set to either 0 or 1 according to the presence of the relationship (system matrix s). For difficulty, the figures are set according to the difficulty level of each element to determine the matrix component value (system matrix n). The complexity of the whole development project is calculated by multiplying the interdependency by the difficulty, and the result is as follows.High-priority requirement, feature, and needs → High difficultyHigh or low priority of requirement to be realizedImportance and priority of requirementRequirementFeatureNeeds6Is the function frequently used to realize the requirement? (assumed that operation frequency of major function will be high)Important function→ High difficulty(high priority → high difficulty, used many times → high difficulty, high reusability → low difficulty)IIs the function essential to realize a high-priority requirement?Importance of each function (basic function, frequency of use, etc.)Function5Is the component frequently used to realize the requirement? (assumed that major component will have high number of interfaces with other components)Important component→ High difficulty(high priority → high difficulty, used many times → high difficulty, high reusability → low difficulty)Is the component essential to realize a high-priority requirement?Importance of each component (basic function, frequency of use, etc.)Component4Reusability (Is the artifact reused from another project?), or expandability of base by prototyping, etc.Reusability (Is it a reuse of artifact from another project?), or expandability of base by prototyping, etc.Reusability (Is it a reuse of artifact from another project?), or expandability of base by prototyping, etc.Is the number of pages or lines greater for the measured artifact than the others?Is it frequently referenced while conducting other activities? (assumed that important artifact will be referenced many times)Important artifact→ High difficulty(special technology necessary → high difficulty, high referencing → high difficulty, amount of artifact→ high difficulty, high reusability → low difficulty)Is special technology needed in creating the artifact? (Is it necessary to learn special language, etc.?)Importance of each artifactArtifact3Is it standard activity?Important activity→ High-difficultystandard activity→ Low difficultyIs this activity a critical point? (Is it supplementary activity?)Importance of each activityActivity2Role (leader? assistant? etc.)Highly skilled team→ Low difficultyYears of experience, proficiency level (skill)Skill of each team or personnelTeam1Difficulty ranking policyMeasurement index (example)Subject of measurementElement to be surveyedNo.Requirement-FunctionFunction-ComponentComponent-ArtifactArtifact-ActivityActivity-TeamUnit matrixsystem matrix nsystem matrix sComplexityInterdependencyDifficulty

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