現行的門號申辦大部份是以隨機方式從資料庫中選取數組可用門號或給予一份可用門號清單來提供 顧客選用，而未能針對顧客的不同需求及不同選號條件的喜好程度，來進行差異的門號建議，甚至未考 慮熱門門號該如何出售以增加公司營利。另外，清單的選號方式需花費大量時間瀏覽，以至於顧客及門 市員工會浪費冗長的交易時間。 本研究首先以分析層級法(analytic hierarchy process, AHP)來量化顧客的內心需求指標項目權重設 定，引導客戶或由其自行決定門號選擇的條件，並計算出顧客對於各選號條件的權重。依據顧客的各項 選號條件、資金預算或其他需求，本研究建立了多目標規劃(multiple objective programming, MOP)模式。 然後，應用演進雛型法(evolutionary prototyping method)來發展「互動式客制化選號支援系統」的雛型， 以即時提供客戶在選號時的決策參考。 最後，各種模擬資料不僅提供若則分析或各種管理分析，進而使得未來的號碼行銷策略更有彈性， 並增加整體客戶的滿意度及公司的利潤。

Current procedures for applying mobile-phone number mostly are to select several sets of available number from database at random or give a detailed list of available numbers for customer’s selection. These procedures cannot give customized suggestion, since the requirements and preferences of mobile-phone number of each customer, even how to sell popular numbers for increasing the company’s net profit, are not considered in the application. Besides, selecting available numbers from the detailed list need take a long time, such that it will waste a tedious time for trade between customer and employee of retail department. This study first adopts analytic hierarchy process (AHP) for quantifying intrinsic requirements of each customer, interactively guiding the customer to select, or the customer independently selecting, the condition of each constraint, and then computing the weight of each constraint requirement related to each customer. Based on constraints of number selection, budget, other requirements, etc. of each customer, a multi-objective nonlinear programming (MONLP) model is formed in this study. Further, a web-based prototype system of interactively customizing mobile-phone number selection is developed by using the evolutionary prototyping method, and its suggested solution can immediately provide the references for each customer selecting number. Finally, various simulation data provide what-if and managerial analyses, such that the marketing strategy of mobile-phone number can become more flexible in future, enhance the satisfaction of the whole customers, and increase the profits of the company.