Software Reliability Allocation Model and its Fuzzy Application: An Enhanced Model

軟體可靠度分派模式及其模糊應用

吳泰熙(Tai-Hsi Wu) ； 陳偉星(Wei-Shing Chen)

《大葉學報》 4卷1期 (1995/12) Pp. 49-62

https://doi.org/10.7119/JDYU.199512.0049

摘要

軟體可靠度目標之設定在整個決策分析之過程中為相當重要之一環。Zahedi所提出之軟體可靠度設定模式並未考慮相關足以影響軟體錯誤之因子，其所決定之參數過於主觀。本研究利用階乘分析程序（AHP），考慮軟體結構複雜度，規格更換頻率，城市領域等因素，提出數學規劃模式，將可協助軟體工程師於軟體分析、設計階段時，配置模組之可靠度，使得在有限資源下，使用者效益得以最僅化。最後，我們應用模糊數學規劃技術來處理這個軟體可靠度分派模式。因為當模式限制式允許被放寬至某事先決定的範圍時，目標函數值可以因此而提昇至更令決策者滿意的程度。

關鍵字

軟體可靠度 ； 可靠度設定 ； 數學規劃 ； 模糊數學規劃

並列摘要

This paper presents a revised mathematical model based on Zahedi's work to help software managers allocate software reliability to each module of a software by utilizing the AHP method at planning and design stage in order to maximize user's utility. The empirical factors such as structure complexity, frequency of program specification change, and program categories are considered when constructing the revised model. We also apply fuzzy mathematical programming approach to this reliability allocation model to provide the decision maker a possibility to improve the objective value when the constraints are allowed to be relaxed to some predetermined degree.

並列關鍵字

Software reliability ； Reliability allocation ； Mathematical programming ； Fuzzy mathematical programming