Monday, October 18, 2010

Contemporary non function requirements of a Software Product

Version 2 of this article is posted at: http://architecture-soa-bpm-eai.blogspot.com/2011/06/contemporary-non-function-requirements.html

In any software product one has functional and non-functional requirements. It is always easier (is it so?) to identify and define functional requirements. But not so easy to define non functional. With increasing experience of software development communities, traditional non functional requirements like availability, usability, robustness (http://en.wikipedia.org/wiki/Non-functional_requirement) becoming commodity. But with changing business and technological landscape, new set of non functional requirements are emerging.
1. Open API ( synchronous and/or asynchronous)
a. Remote Object
b. Service (for example)
i. SOAP based Web Service
ii. REST Based Web Service
iii. JSON based web service
2. Multiple Channel Access (for example)
a. Connected Desktop (web browser)
b. Disconnected Desktop
c. Mobile application
d. RSS/Atom
e. WAP
f. Mobile browser
3. 3rd party/partners can build on your platform/product
4. Product as vehicle for 3rd party content
5. User as editor of relevant content
6. Content is made available to user when it is ready (push mechanism or at least reactive alert)
7. User add ancillary data ( like rating, reviews, ranking, link submission, recommendations, etc)
8. Settings/configurations can be exported and imported
9. Allow product to run as slave as well as master while integrating with other applications
10. User as owner of identity
a. Published Privacy policy with some control to end users
b. Authentication and authorization using industry wide acceptable standards ( like OpenID, facebook Id, google ID, Yahoo ID, etc)
11. Variable licensing options (for example)
a. Transaction based
b. Revenue sharing
c. User based
d. Fixed onetime cost
e. Time based
f. Cloud compliant
g. Processor based
h. Virtualization compliant
12. Social Networking features
13. Serving high band width as well as low band width environment
14. Information and data search capability
15. Domain Specific language
16. Framework for customization
17. Support distributive SDLC with multiple out sourcing partners
18. Hardware independence
19. Place for online advertisement ( like google ad)
20. Open to migrate to cloud or to non cloud deployment
21. User Analytics
22. Dash board
a. Users
b. Administrators
c. Maintenance and support staff
23. Hooks to monitoring tools
24. Early release and flexible design & architecture to modify
25. Concepts of Roles and Permissions (Identity Management)
26. Multiple Browser compatibility

Reference

1. http://en.wikipedia.org/wiki/Non-functional_requirement
2. http://en.wikipedia.org/wiki/List_of_system_quality_attributes
3. http://broadcast.oreilly.com/2010/02/nonfunctional-requirements-how.html
4. http://en.wikipedia.org/wiki/Requirements_analysis
5. http://en.wikipedia.org/wiki/ISO/IEC_9126
6. http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=22749

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