137 lines
3.5 KiB
TypeScript
137 lines
3.5 KiB
TypeScript
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/**
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* 风险与任务评估工具模块
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*
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* 本模块提供了一系列用于评估风险等级、任务紧急程度和综合问题级别的工具函数。
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* 主要用于项目管理、风险评估等场景，帮助用户量化分析各类风险因素。
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*
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* 版本历史：
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* - v1.0.0 初始版本，包含基础风险评估功能
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* - v1.1.0 新增任务紧急程度评估功能
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* - v1.2.0 添加综合问题级别评估功能
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*/
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import dayjs from "dayjs";
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/**
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* 计算风险等级
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*
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* 根据概率和严重性的乘积来评估风险等级，采用线性分段评估方法。
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*
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* @param probability 风险发生概率，范围0-100
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* @param severity 风险严重程度，范围0-100
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* @returns 风险等级，1-4级，4级为最高风险
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*
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* 算法复杂度：O(1)
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* 空间复杂度：O(1)
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*/
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export function getRiskLevel(probability: number, severity: number) {
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// 计算风险值
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const riskValue = probability * severity;
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// 分段评估风险等级
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if (riskValue > 70) {
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return 4;
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} else if (riskValue > 42) {
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return 3;
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} else if (riskValue > 21) {
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return 2;
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}
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return 1;
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}
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/**
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* 计算任务紧急程度评分
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*
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* 根据截止日期与当前日期的差值来评估任务紧急程度。
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* 采用分段评分机制，距离截止日期越近，评分越高。
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*
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* @param deadline 任务截止日期，支持字符串、Date对象或空值
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* @returns 紧急程度评分，0-100分，100分为最紧急
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*
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* 算法复杂度：O(1)
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* 空间复杂度：O(1)
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*/
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export function getDeadlineScore(deadline: string | Date | null | undefined) {
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// 处理空值情况
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if (!deadline) {
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return 0;
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}
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// 计算距离截止日期的天数
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const deadlineDays = dayjs().diff(dayjs(deadline), "day");
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// 初始化基础评分
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let deadlineScore = 25;
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// 根据天数范围调整评分
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if (deadlineDays > 365) {
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deadlineScore = 100;
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} else if (deadlineDays > 90) {
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deadlineScore = 75;
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} else if (deadlineDays > 30) {
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deadlineScore = 50;
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}
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return deadlineScore;
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}
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/**
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* 计算综合问题级别
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*
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* 综合考虑概率、严重性、影响程度、成本和截止日期等因素，
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* 采用加权平均算法评估问题级别。
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*
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* @param probability 问题发生概率，范围0-100
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* @param severity 问题严重程度，范围0-100
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* @param impact 问题影响范围，范围0-100
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* @param cost 问题解决成本，范围0-100
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* @param deadline 问题解决截止日期
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* @returns 问题级别，0-4级，4级为最严重问题
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*
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* 算法复杂度：O(1)
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* 空间复杂度：O(1)
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*/
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export function getTroubleLevel(
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probability: number,
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severity: number,
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impact: number,
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cost: number,
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deadline: string | Date
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) {
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// 计算距离截止日期的天数
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const deadlineDays = dayjs().diff(dayjs(deadline), "day");
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// 初始化紧急程度评分
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let deadlineScore = 25;
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// 根据天数范围调整评分
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if (deadlineDays > 365) {
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deadlineScore = 100;
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} else if (deadlineDays > 90) {
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deadlineScore = 75;
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} else if (deadlineDays > 30) {
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deadlineScore = 50;
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}
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// 计算加权总分
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let total =
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0.257 * probability +
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0.325 * severity +
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0.269 * impact +
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0.084 * deadlineScore +
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0.065 * cost;
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// 根据总分评估问题级别
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if (total > 90) {
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return 4;
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} else if (total > 60) {
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return 3;
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} else if (total > 30) {
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return 2;
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} else if (probability * severity * impact * cost !== 1) {
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return 1;
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} else {
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return 0;
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}
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}
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