4S Web Marketing Mix Model
The 4S Web Marketing Mix method from Constantinides identifies the following four critical decision-making elements of E-Marketing: SCOPE, SITE, SYSTEM, and SYNERGY. The goal of this model is to design and develop a marketing mix for B2C online projects by controlling four “S" elements. 
SCOPE Scope defines the main strategic issues at the bottom of the online presence; these are subject to continuous management review and appraisal. The scope word should be referred to in terms of markets and competitors, customer profiles, the impact of the online operation on existing internal processes, and the firm's online presence.
In 4S model, the scope element is of primary strategic character and outlines the decisions to be made in four areas: • The strategic and operational objectives of the online venture; • The market definition including measuring the market potential and the identification/classification of the potential competitors, visitors, and customers of the site; • The degree of readiness of the organization for E-Commerce; • The strategic role of E-Commerce for the organization.
SITE Site identifies the operational aspects of the online presence reflecting the character, positioning, and market focus of online firms. The prime mission of the web Site is to attract traffic, and establish contact with the online target markets and brand the online organization. Thus the corporate website is a functional platform of communication, interaction, and transaction with the web customer.
SYSTEM The system factor identifies the technological issues as well as the site servicing issues to be addressed by the E-Commerce management. It provides an outline of technical factors supporting the secure, safe, cost-efficient, and customer-friendly operation of the corporate website.
The synergy factor holds a wide range of issues divided into three categories:
(a) The front office,
(b) The back office and
(c) The third parties in one’s arms.
Online firms will make the most of their market impact by capitalizing on synergies with on-hand commercial and organizational processes while they fully utilize their commercial networks.
- Integration with the Front Office
This refers to the integration of the firm's e-activities in the total corporate marketing plan. The front office refers to conventional corporate communication and distribution strategies. It is mandatory to provide the online presence of the firm the initial support, desired in order to develop as a noteworthy element of the total marketing program.
- Integration with the Back Office
This refers to the fact that an extensive integration of e-activities in the current organizational processes is nothing but a vital condition to meet the needs and expectations of online customers. The back office synergy includes three issues:
- The integration of E-Commerce physical support into existing organizational processes;
- The legacy integration;
- Integration of the online operation into the company's value system.
Integration of the online presence with existing organizational processes might mean that some of the traditional operations or procedural routines have to be upgraded or re-designed in order to deliver the proper level of virtual customer service and value.
- Integration with External Parties and Company Networks
Integration with external parties and company networks is crucial after promotional and logistical activities. They are vital when outsourcing processes that cannot be done internally cost-effectively.
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