This article is about selling software, for information about software made for business: Business software.
Software Business is the commercial activity of the software industry, aimed at producing, buying and selling software products or software services. The business of software differs from other businesses, in that its main good is intangible and fixed costs of production are high while variable costs of production are close to zero.
Types of software businesses
Cusumano  and Nambisan  divide software companies (supplier-side) into service and product companies according to how they conduct business. Popp and Meyer give a more detailed analysis of different types of business models of software companies.
Software product business
In the Software product business, Software is licensed for installation and execution on a user- or customer-supplied infrastructure. In the software product business, revenues typically originate from selling software upgrades to the customer.
Software service business
Software services business is a strategy of a software company whose offering consists mainly of services or consulting relating to software development.
Characteristics of software services business
Generally business model of a software company can be categorized as product company, services company or a hybrid between these two models. Software service business can also refer to offering Software as a Service.
Software services business can be categorized into following categories:
- Companies that provide consultation services related to software business
- Companies that provide software development services as a subcontractor.
Characteristics of Service Operations  that are relevant to software services industry:
- Intangibility: Service is produced instead of tangible product. Therefore service innovations can be easily copied by competitors.
- Perishability: Human resource intensive services cannot be produced in advance, therefore demand and supply is difficult to manage. This also affects business scalability.
- Heterogeneity: Service encounters are unique and customer needs vary, therefore software services are difficult to standardize and productize. Therefore service business is also difficult to scale.
Software Business Organizations
- Karl M. Popp and Ralf Meyer (2010). Profit from Software Ecosystems: Business Models, Ecosystems and Partnerships in the Software Industry. Norderstedt, Germany: BOD. ISBN 3-8391-6983-6.
- D.G. Messerschmitt and C. Szyperski, Software Ecosystem: Understanding an Indispensable Technology and Industry, MIT Press, 2003
- Cusumano M. (2003) Finding Your balance in the Products and Service Debate, Communications of the ACM. Vol. 46:3
- Nambisan S. (2001) Why Service Business are not Product Businesses, MIT Sloan Management Review. Vol. 42:4
- Cusumano, Michael A., The business of software, Chapter 2., New York : Free Press, 2004
- Bitran G. & Logo, M. 1993, A Framework for Analyzing Service Operations. European Management Journal 11 (3):271-282